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class="vector-toc-text"> <span class="vector-toc-numb">3.4</span> <span>Susceptibility</span> </div> </a> <ul id="toc-Susceptibility-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Specific_heat_capacity" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Specific_heat_capacity"> <div class="vector-toc-text"> <span class="vector-toc-numb">3.5</span> <span>Specific heat capacity</span> </div> </a> <ul id="toc-Specific_heat_capacity-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Surface_absorption_process" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Surface_absorption_process"> <div class="vector-toc-text"> <span class="vector-toc-numb">3.6</span> <span>Surface absorption process</span> </div> </a> <ul id="toc-Surface_absorption_process-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-Uses" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a 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class="vector-column-end"> <div class="vector-sticky-pinned-container"> <nav class="vector-page-tools-landmark" aria-label="Page tools"> <div id="vector-page-tools-pinned-container" class="vector-pinned-container"> </div> </nav> <nav class="vector-appearance-landmark" aria-label="Appearance"> <div id="vector-appearance-pinned-container" class="vector-pinned-container"> <div id="vector-appearance" class="vector-appearance vector-pinnable-element"> <div class="vector-pinnable-header vector-appearance-pinnable-header vector-pinnable-header-pinned" data-feature-name="appearance-pinned" data-pinnable-element-id="vector-appearance" data-pinned-container-id="vector-appearance-pinned-container" data-unpinned-container-id="vector-appearance-unpinned-container" > <div class="vector-pinnable-header-label">Appearance</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-appearance.pin">move to sidebar</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-appearance.unpin">hide</button> </div> </div> </div> </nav> </div> </div> <div id="bodyContent" class="vector-body" aria-labelledby="firstHeading" data-mw-ve-target-container> <div class="vector-body-before-content"> <div class="mw-indicators"> </div> <div id="siteSub" class="noprint">From Wikipedia, the free encyclopedia</div> </div> <div id="contentSub"><div id="mw-content-subtitle"></div></div> <div id="mw-content-text" class="mw-body-content"><div class="mw-content-ltr mw-parser-output" lang="en" dir="ltr"><div class="shortdescription nomobile noexcerpt noprint searchaux" style="display:none">Metallic palladium</div> <p><b>Palladium hydride</b> is <a href="/wiki/Palladium" title="Palladium">palladium</a> metal with <a href="/wiki/Hydrogen" title="Hydrogen">hydrogen</a> within its <a href="/wiki/Crystal_lattice" class="mw-redirect" title="Crystal lattice">crystal lattice</a>. Despite its name, it is not an ionic <a href="/wiki/Hydride" title="Hydride">hydride</a> but rather an <a href="/wiki/Alloy" title="Alloy">alloy</a> of palladium with <a href="/wiki/Metallic_hydrogen" title="Metallic hydrogen">metallic hydrogen</a> that can be written PdH<sub><i>x</i></sub>. At room temperature, palladium hydrides may contain two crystalline phases, α and β (also called α′). Pure α-phase exists at <i>x</i> < 0.017 while pure β-phase exists at <i>x</i> > 0.58; intermediate values of <i>x</i> correspond to α–β mixtures.<sup id="cite_ref-r1_1-0" class="reference"><a href="#cite_note-r1-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> </p><p>Hydrogen absorption by palladium is reversible and therefore has been investigated for <a href="/wiki/Hydrogen_storage" title="Hydrogen storage">hydrogen storage</a>.<sup id="cite_ref-grochala_2-0" class="reference"><a href="#cite_note-grochala-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> Palladium electrodes have been used in some <a href="/wiki/Cold_fusion" title="Cold fusion">cold fusion</a> experiments, under the theory that hydrogen can be "squeezed" between palladium atoms to help it fuse at lower temperatures than normal.<sup class="noprint Inline-Template Template-Fact" style="white-space:nowrap;">[<i><a href="/wiki/Wikipedia:Citation_needed" title="Wikipedia:Citation needed"><span title="This claim needs references to reliable sources. (March 2025)">citation needed</span></a></i>]</sup> </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="History">History</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Palladium_hydride&action=edit&section=1" title="Edit section: History"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>The absorption of hydrogen gas by palladium was first noted by <a href="/wiki/Thomas_Graham_(chemist)" title="Thomas Graham (chemist)">T. Graham</a> in 1866 and absorption of electrolytically produced hydrogen, where hydrogen was absorbed into a palladium cathode, was first documented in 1939.<sup id="cite_ref-grochala_2-1" class="reference"><a href="#cite_note-grochala-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> Graham produced an alloy with the composition PdH<sub>0.75</sub>.<sup id="cite_ref-gr_3-0" class="reference"><a href="#cite_note-gr-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Making_palladium_hydride">Making palladium hydride</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Palladium_hydride&action=edit&section=2" title="Edit section: Making palladium hydride"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>The hydrogen atoms occupy <a href="/wiki/Interstitial_site" title="Interstitial site">interstitial sites</a> in palladium hydride. The H–H bond in H<sub>2</sub> is cleaved. The ratio in which H is absorbed on Pd is defined by <span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle x={\frac {[H]}{[Pd]}}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mi>x</mi> <mo>=</mo> <mrow class="MJX-TeXAtom-ORD"> <mfrac> <mrow> <mo stretchy="false">[</mo> <mi>H</mi> <mo stretchy="false">]</mo> </mrow> <mrow> <mo stretchy="false">[</mo> <mi>P</mi> <mi>d</mi> <mo stretchy="false">]</mo> </mrow> </mfrac> </mrow> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle x={\frac {[H]}{[Pd]}}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/98c5b1f3e086bf51e8d6ecf789471028294d7a59" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -2.671ex; width:9.519ex; height:6.509ex;" alt="{\displaystyle x={\frac {[H]}{[Pd]}}}" /></span>. When Pd is brought into a H<sub>2</sub> environment with a pressure of 1 atm, the resulting concentration of H reaches <i>x</i> ≈ 0.7. However, the concentration of H to obtain superconductivity is higher, in the range <i>x</i> > 0.75.<sup id="cite_ref-supercond_4-0" class="reference"><a href="#cite_note-supercond-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> This is done via three different routes, with measures to prevent the ready desorption of the hydrogen from the palladium. </p><p>The first route is loading from gas phase. A Pd sample is placed into a high-pressure cell of H<sub>2</sub>, at room temperature. The H<sub>2</sub> is added through a capillary. To maintain the high absorption, the pressure cell is cooled to liquid N<sub>2</sub> temperature (77 K). The resulting concentration may be as high as [H]/[Pd] = 0.97.<sup id="cite_ref-supercond_4-1" class="reference"><a href="#cite_note-supercond-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> </p><p>The second route is electrochemical bonding. This is a method where the critical concentration for superconductivity can easily be exceeded without using a high-pressure environment, via a reaction as equilibrium between H in an electrochemical phase and H in a solid phase. The hydrogen is added to Pd and Pd–Ni alloys by an H concentration of ~ 0.95.<sup id="cite_ref-supercond_4-2" class="reference"><a href="#cite_note-supercond-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> Thereafter, it has been loaded into electrolysis of 0.1n-H<sub>2</sub>SO<sub>4</sub> with a current density of 50 to 150 mA/cm<sup>3</sup>. Finally, after lowering the loading temperature to ~ 190 K, a H concentration of <i>x</i> ≈ 1 has been reached.<sup id="cite_ref-supercond_4-3" class="reference"><a href="#cite_note-supercond-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> </p><p>The third route is known as ion implantation. Before the implantation of H ions into Pd, the Pd foil was pre-charged with H. This is done in H<sub>2</sub> high-temperature gas. This shortens the implantation time which follows. The concentration reached is about x ≈ 0.7.<sup id="cite_ref-supercond_4-4" class="reference"><a href="#cite_note-supercond-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> Afterwards the foil is cooled to a temperature of 77 K to prevent a loss of H before the implantation can take place. The implantation of H in PdH<sub><i>x</i></sub> happens at a temperature of 4 K. The H ions penetrate in an H<sub>2</sub><sup>+</sup>-beam. This results in a high concentration layer of H in a Pd foil.<sup id="cite_ref-supercond_4-5" class="reference"><a href="#cite_note-supercond-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Chemical_structure_and_properties">Chemical structure and properties</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Palladium_hydride&action=edit&section=3" title="Edit section: Chemical structure and properties"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Palladium is sometimes metaphorically called a "metal sponge" (not to be confused with literal <a href="/wiki/Metal_sponge" class="mw-redirect" title="Metal sponge">metal sponges</a>) because it soaks up hydrogen "like a sponge soaks up water". At <a href="/wiki/Standard_temperature_and_pressure" title="Standard temperature and pressure">standard temperature and pressure</a>, palladium can absorb up to 900 times its own volume of hydrogen.<sup id="cite_ref-5" class="reference"><a href="#cite_note-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup> Hydrogen can be absorbed into the metal hydride and then desorbed back out for thousands of cycles. Researchers look for ways to extend the useful life of palladium storage.<sup id="cite_ref-6" class="reference"><a href="#cite_note-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading3"><h3 id="Size_effect">Size effect</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Palladium_hydride&action=edit&section=4" title="Edit section: Size effect"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>The absorption of hydrogen produces two different phases, both of which contain palladium metal atoms in a <a href="/wiki/Face-centered_cubic" class="mw-redirect" title="Face-centered cubic">face-centered cubic</a> (fcc, <a href="/wiki/Cubic_crystal_system#Rock-salt_structure" title="Cubic crystal system">rocksalt</a>) lattice, which is the same structure as pure palladium metal. At low concentrations up to PdH<sub>0.02</sub> the palladium lattice expands slightly, from 388.9 <a href="/wiki/Picometer" class="mw-redirect" title="Picometer">pm</a> to 389.5 pm. Above this concentration the second phase appears with a lattice constant of 402.5 pm. Both phases coexist until a composition of PdH<sub>0.58</sub> when the alpha phase disappears.<sup id="cite_ref-r1_1-1" class="reference"><a href="#cite_note-r1-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> <a href="/wiki/Neutron_diffraction" title="Neutron diffraction">Neutron diffraction</a> studies have shown that hydrogen atoms randomly occupy the octahedral interstices in the metal lattice (in an fcc lattice there is one <a href="/wiki/Octahedron" title="Octahedron">octahedral</a> hole per metal atom). The limit of absorption at normal pressures is PdH<sub>0.7</sub>, indicating that about 70% of the octahedral holes are occupied. When <i>x</i> = 1 is reached, the octahedral interstices are fully occupied.<sup id="cite_ref-particle_size_7-0" class="reference"><a href="#cite_note-particle_size-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup> The absorption of hydrogen is reversible, and hydrogen rapidly diffuses through the metal lattice. Metallic conductivity reduces as hydrogen is absorbed, until at around PdH<sub>0.5</sub> the solid becomes a semiconductor.<sup id="cite_ref-gr_3-1" class="reference"><a href="#cite_note-gr-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> </p><p>This formation of the bulk hydride does depend on the size of the catalyst palladium. When palladium becomes smaller than 2.6 nm, hydrides are no longer formed.<sup id="cite_ref-particle_size_7-1" class="reference"><a href="#cite_note-particle_size-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup> </p><p>Hydrogen dissolved in the bulk differ from hydrogen dissolved on the surface. When the particles of palladium decrease in size, less hydrogen dissolves in these smaller palladium particles. Therefore, relatively more hydrogen adsorbs on the surface of the small particles. This hydrogen adsorbed onto the particles do not form an hydride. Therefore, bigger particles have more places available for the formation of hydrides.<sup id="cite_ref-particle_size_7-2" class="reference"><a href="#cite_note-particle_size-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading3"><h3 id="Electron_and_phonon_band">Electron and phonon band</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Palladium_hydride&action=edit&section=5" title="Edit section: Electron and phonon band"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>The most important property of the band structure of PdH(oct) is that filled Pd states are lowered with the presence of hydrogen. Also, the lowest energy levels, which are the bonding states, of PdH are lower than that of Pd.<sup id="cite_ref-e-p-band_8-0" class="reference"><a href="#cite_note-e-p-band-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup> </p><p>Additionally, empty Pd states, that are below the fermi energy, are also lowered with the presence of H.<sup id="cite_ref-e-p-band_8-1" class="reference"><a href="#cite_note-e-p-band-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup> </p><p>Palladium prefers to be with hydrogen due to the interaction between the s state of hydrogen and the p states of palladium. The energy of an independent H atom lies in the energy range of the dominating p-states of the Pd bands.<sup id="cite_ref-e-p-band_8-2" class="reference"><a href="#cite_note-e-p-band-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup> </p><p>Therefore, these empty states under the fermi-energy and holes in the d-band are filled.<sup id="cite_ref-e-p-band_8-3" class="reference"><a href="#cite_note-e-p-band-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup> </p><p>Additionally, the hydride formation raises the fermi level above the d-band. Empty states, above the d-band, are also filled. This results in filled p-states and shifts the ‘edge’ to a higher energy level.<sup id="cite_ref-xray_9-0" class="reference"><a href="#cite_note-xray-9"><span class="cite-bracket">[</span>9<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading3"><h3 id="Superconductivity">Superconductivity</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Palladium_hydride&action=edit&section=6" title="Edit section: Superconductivity"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>PdH<sub><i>x</i></sub> is a superconductor with a transition temperature <i>T</i><sub>c</sub> of about 9 K for <i>x</i> = 1. (Pure palladium is not superconducting.) Drops in resistivity vs. temperature curves were observed at higher temperatures (up to 273 K) in hydrogen-rich (<i>x</i> ≈ 1), nonstoichiometric palladium hydride and interpreted as superconducting transitions.<sup id="cite_ref-Tripodi2003_10-0" class="reference"><a href="#cite_note-Tripodi2003-10"><span class="cite-bracket">[</span>10<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-Tripodi2004_11-0" class="reference"><a href="#cite_note-Tripodi2004-11"><span class="cite-bracket">[</span>11<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-Tripodi2007_12-0" class="reference"><a href="#cite_note-Tripodi2007-12"><span class="cite-bracket">[</span>12<span class="cite-bracket">]</span></a></sup> These results have been questioned<sup id="cite_ref-13" class="reference"><a href="#cite_note-13"><span class="cite-bracket">[</span>13<span class="cite-bracket">]</span></a></sup> <sup class="noprint Inline-Template" style="white-space:nowrap;">[<i><a href="/wiki/Wikipedia:Verifiability" title="Wikipedia:Verifiability"><span title="The material near this tag failed verification of its source citation(s). (December 2013)">failed verification</span></a></i>]</sup> and have not been confirmed thus far. </p><p>A great advantage of palladium hydride over many other hydride systems is that palladium hydride does not need to be highly pressurized to become superconducting.<sup id="cite_ref-supercond_4-6" class="reference"><a href="#cite_note-supercond-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> This makes measurements easier and gives more opportunity for different kinds of measurements (many superconducting materials require extreme pressure in order to superconduct, on the order of 100 GPa).<sup id="cite_ref-supercond_4-7" class="reference"><a href="#cite_note-supercond-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> Palladium hydride could therefore also be used to explore the role that hydrogen plays in these hydride systems being superconductors. </p> <div class="mw-heading mw-heading3"><h3 id="Susceptibility">Susceptibility</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Palladium_hydride&action=edit&section=7" title="Edit section: Susceptibility"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>One of the magnetic properties of Palladium hydride is susceptibility. The susceptibility of PdH<sub><i>x</i></sub> varies largely when changing the concentration of H.<sup id="cite_ref-supercond_4-8" class="reference"><a href="#cite_note-supercond-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> This is due to the β-phase of PdH<sub><i>x</i></sub>. The α-phase of PdH lies in the same range of the fermi surface as Pd itself, therefore 𝛼-phase does not influence the susceptibility.<sup id="cite_ref-supercond_4-9" class="reference"><a href="#cite_note-supercond-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> However, the β-phase of PdH<sub><i>x</i></sub> is characterized by s-electrons filling the d-band. Therefore, the susceptibility of the α–β mixture decreases at room temperature with an increasing concentration of H.<sup id="cite_ref-supercond_4-10" class="reference"><a href="#cite_note-supercond-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> Finally, when the spin fluctuations of pure Pd are decreased, the superconductivity will occur.<sup id="cite_ref-supercond_4-11" class="reference"><a href="#cite_note-supercond-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading3"><h3 id="Specific_heat_capacity">Specific heat capacity</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Palladium_hydride&action=edit&section=8" title="Edit section: Specific heat capacity"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Another metallic property is the electronic heat coefficient <i>γ</i>. This coefficient depends on the density of states. For pure Pd the heat coefficient is 9.5 mJ(mol⋅K<sup>2</sup>).<sup id="cite_ref-supercond_4-12" class="reference"><a href="#cite_note-supercond-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> When H is added to the pure Pd, the electronic heat coefficient drops. For the range of <i>x</i> = 0.83 to <i>x</i> = 0.88<span style="visibility:hidden; color:transparent; padding-left:2px">‍</span><i>γ</i> is observed to be six times smaller than for pure Pd.<sup id="cite_ref-supercond_4-13" class="reference"><a href="#cite_note-supercond-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> This region is the superconducting region. However, Zimmerman et al. also measured the heat coefficient <i>γ</i> for a concentration of <i>x</i> = 0.96.<sup id="cite_ref-supercond_4-14" class="reference"><a href="#cite_note-supercond-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> A broadening of the superconducting transition was observed at this concentration. One of the reasons for this could be explained by an inhomogeneity of the macroscopic structure of PdH<sub><i>x</i></sub>.<sup id="cite_ref-supercond_4-15" class="reference"><a href="#cite_note-supercond-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> <i>γ</i> at this value of <i>x</i> has a large fluctuation and is therefore uncertain. </p><p>The critical concentration for superconductivity to happen is estimated at <i>x</i> ≈ 0.72.<sup id="cite_ref-supercond_4-16" class="reference"><a href="#cite_note-supercond-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> The critical temperature or the superconducting transition temperature is estimated at 9 K. This was achieved at a stoichiometric concentration of <i>x</i> = 1. </p><p>Pressure also influences the critical temperature. It is shown that an increase in the pressure on PdH<sub><i>x</i></sub> decreases <i>T</i><sub>c</sub>. This can be explained by a hardening of the phonon spectrum, which includes a decrease in the electron–phonon constant <i>λ</i>.<sup id="cite_ref-supercond_4-17" class="reference"><a href="#cite_note-supercond-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading3"><h3 id="Surface_absorption_process">Surface absorption process</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Palladium_hydride&action=edit&section=9" title="Edit section: Surface absorption process"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>The process of absorption of hydrogen has been shown by <a href="/wiki/Scanning_tunnelling_microscopy" class="mw-redirect" title="Scanning tunnelling microscopy">scanning tunnelling microscopy</a> to require aggregates of at least three vacancies on the surface of the crystal to promote the dissociation of the hydrogen molecule.<sup id="cite_ref-14" class="reference"><a href="#cite_note-14"><span class="cite-bracket">[</span>14<span class="cite-bracket">]</span></a></sup> The reason for such a behaviour and the particular structure of trimers has been analyzed.<sup id="cite_ref-15" class="reference"><a href="#cite_note-15"><span class="cite-bracket">[</span>15<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Uses">Uses</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Palladium_hydride&action=edit&section=10" title="Edit section: Uses"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>The absorption of hydrogen is reversible and is highly selective. A palladium-based diffuser separator is used, although they are not employed industrially.<sup id="cite_ref-16" class="reference"><a href="#cite_note-16"><span class="cite-bracket">[</span>16<span class="cite-bracket">]</span></a></sup> Impure gas is passed through tubes of thin walled silver–palladium alloy as <a href="/wiki/Hydrogen_atom" title="Hydrogen atom">protium</a> and <a href="/wiki/Deuterium" title="Deuterium">deuterium</a> readily diffuse through the alloy membrane. The gas that comes through is pure and ready for use. Palladium is alloyed with silver to improve its strength and resistance to embrittlement. To ensure that the formation of the beta phase is avoided, as the lattice expansion noted earlier would cause distortions and splitting of the membrane, the temperature is maintained above 300 °C.<sup id="cite_ref-gr_3-2" class="reference"><a href="#cite_note-gr-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> </p><p>Another use of palladium hydride is increased adsorption of H<sub>2</sub>-molecules with respect to pure palladium. In 2009, a study was conducted which tested this fact.<sup id="cite_ref-17" class="reference"><a href="#cite_note-17"><span class="cite-bracket">[</span>17<span class="cite-bracket">]</span></a></sup> At a pressure of 1 bar, the probability was measured of Hydrogen molecules sticking to the surface of Palladium versus the probability of sticking to surface of palladium hydride. The sticking probability of Palladium was found to be greater at temperatures where the phase of the used Palladium and hydrogen mixture was pure β-phase, which is in this context corresponds to palladium hydride (at 1 bar this means temperatures greater than roughly 160 degrees Celsius), as opposed to temperatures where β- and α-phases coexist and even lower temperatures where there is pure α-phase (α-phase here corresponds to a solid solution of Hydrogen atoms in Palladium). Knowing these sticking probabilities enables one to calculate the rate of adsorption <span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle r_{\text{a}}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <msub> <mi>r</mi> <mrow class="MJX-TeXAtom-ORD"> <mtext>a</mtext> </mrow> </msub> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle r_{\text{a}}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/0d07cc1cbdc134a765b660a2dcb13bbff42a2e10" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.671ex; width:2.103ex; height:2.009ex;" alt="{\displaystyle r_{\text{a}}}" /></span> by virtue of the equation </p> <dl><dd><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle r_{\text{a}}=S\Phi _{\text{H}}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <msub> <mi>r</mi> <mrow class="MJX-TeXAtom-ORD"> <mtext>a</mtext> </mrow> </msub> <mo>=</mo> <mi>S</mi> <msub> <mi mathvariant="normal">Φ</mi> <mrow class="MJX-TeXAtom-ORD"> <mtext>H</mtext> </mrow> </msub> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle r_{\text{a}}=S\Phi _{\text{H}}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/bb66bc336bb897f8cfeb3555bb27d193234a0360" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.671ex; width:9.843ex; height:2.509ex;" alt="{\displaystyle r_{\text{a}}=S\Phi _{\text{H}}}" /></span></dd></dl> <p>where <span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle S}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mi>S</mi> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle S}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/4611d85173cd3b508e67077d4a1252c9c05abca2" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.338ex; width:1.499ex; height:2.176ex;" alt="{\displaystyle S}" /></span> is the aforementioned sticking probability and <span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \Phi _{\text{H}}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <msub> <mi mathvariant="normal">Φ</mi> <mrow class="MJX-TeXAtom-ORD"> <mtext>H</mtext> </mrow> </msub> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \Phi _{\text{H}}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/b454bd64460213d3a31d74dbce3121ce6501b0a5" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.671ex; width:3.143ex; height:2.509ex;" alt="{\displaystyle \Phi _{\text{H}}}" /></span> is the flux of hydrogen molecules in the toward the surface of the palladium/palladium-hydride. </p><p>When the system is in a steady state, we must have that the rate of adsorption and, oppositely, the rate of desorption (<span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle r_{\text{d}}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <msub> <mi>r</mi> <mrow class="MJX-TeXAtom-ORD"> <mtext>d</mtext> </mrow> </msub> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle r_{\text{d}}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/51e239e2ba9216fa11332c628fee9da477f556ad" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.671ex; width:2.195ex; height:2.009ex;" alt="{\displaystyle r_{\text{d}}}" /></span>) are equal. This gives </p> <dl><dd><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle r_{\text{a}}=r_{\text{d}}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <msub> <mi>r</mi> <mrow class="MJX-TeXAtom-ORD"> <mtext>a</mtext> </mrow> </msub> <mo>=</mo> <msub> <mi>r</mi> <mrow class="MJX-TeXAtom-ORD"> <mtext>d</mtext> </mrow> </msub> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle r_{\text{a}}=r_{\text{d}}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/fc7de2920460331ff19db3d5076b42547ef3755e" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.671ex; width:7.396ex; height:2.009ex;" alt="{\displaystyle r_{\text{a}}=r_{\text{d}}}" /></span></dd></dl> <p>The rate of desorption is assumed to be given by a Boltzmannian distribution, i.e. </p> <dl><dd>(*) <span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle r_{\text{d}}=e^{-{\frac {E_{\text{d}}}{k_{\text{B}}T}}}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <msub> <mi>r</mi> <mrow class="MJX-TeXAtom-ORD"> <mtext>d</mtext> </mrow> </msub> <mo>=</mo> <msup> <mi>e</mi> <mrow class="MJX-TeXAtom-ORD"> <mo>−</mo> <mrow class="MJX-TeXAtom-ORD"> <mfrac> <msub> <mi>E</mi> <mrow class="MJX-TeXAtom-ORD"> <mtext>d</mtext> </mrow> </msub> <mrow> <msub> <mi>k</mi> <mrow class="MJX-TeXAtom-ORD"> <mtext>B</mtext> </mrow> </msub> <mi>T</mi> </mrow> </mfrac> </mrow> </mrow> </msup> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle r_{\text{d}}=e^{-{\frac {E_{\text{d}}}{k_{\text{B}}T}}}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/1b865e0d9ca7466a39b7d65e73a4c3a28587fdee" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.671ex; width:11.436ex; height:4.843ex;" alt="{\displaystyle r_{\text{d}}=e^{-{\frac {E_{\text{d}}}{k_{\text{B}}T}}}}" /></span></dd></dl> <p>where <span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle C}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mi>C</mi> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle C}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/4fc55753007cd3c18576f7933f6f089196732029" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.338ex; width:1.766ex; height:2.176ex;" alt="{\displaystyle C}" /></span> is some unknown constant,<span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle E_{\text{d}}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <msub> <mi>E</mi> <mrow class="MJX-TeXAtom-ORD"> <mtext>d</mtext> </mrow> </msub> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle E_{\text{d}}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/2c9ed37177f5791bc865510bdbeca8168c13ab6b" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.671ex; width:2.861ex; height:2.509ex;" alt="{\displaystyle E_{\text{d}}}" /></span> is the desorption energy, <span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle k_{\text{B}}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <msub> <mi>k</mi> <mrow class="MJX-TeXAtom-ORD"> <mtext>B</mtext> </mrow> </msub> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle k_{\text{B}}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/9582c7c795d2def2c061f0dfa3a6f0fb3dd2de44" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.671ex; width:2.607ex; height:2.509ex;" alt="{\displaystyle k_{\text{B}}}" /></span> is the Boltzmann constant and <span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle T}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mi>T</mi> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle T}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/ec7200acd984a1d3a3d7dc455e262fbe54f7f6e0" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.338ex; width:1.636ex; height:2.176ex;" alt="{\displaystyle T}" /></span> is the temperature. </p><p>The relation (*) can be fitted to find the value of <span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle E_{\text{d}}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <msub> <mi>E</mi> <mrow class="MJX-TeXAtom-ORD"> <mtext>d</mtext> </mrow> </msub> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle E_{\text{d}}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/2c9ed37177f5791bc865510bdbeca8168c13ab6b" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.671ex; width:2.861ex; height:2.509ex;" alt="{\displaystyle E_{\text{d}}}" /></span>. It was found that, within the uncertainty of their experiment, the values for of Palladium and Palladium hydride respectively were roughly equal. Thus palladium hydride has as higher average adsorption rate than Palladium, while the energy required for desorption is the same. </p><p><a href="/wiki/Density_functional_theory" title="Density functional theory">Density functional theory</a> was performed to find an explanation for this fact. It was found that the bond of hydrogen with the palladium hydride surface is weaker than the bond with the palladium surface and that the desorption activation barrier is lower by a small amount for Palladium hydride than for palladium, although the adsorption barriers are comparable in magnitude. Moreover, the heat of adsorption is lower for palladium hydride than for Palladium, which leads to lower equilibrium surface coverage of H. This means that the surface of palladium hydride would be less saturated, which leads to greater opportunity for sticking, i.e. a higher sticking probability. </p><p>The reversible absorption of palladium is a means to store hydrogen, and the above findings indicate that even in the hydrogen-absorbed state of palladium, there is further opportunity for hydrogen storing. </p> <div class="mw-heading mw-heading2"><h2 id="See_also">See also</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Palladium_hydride&action=edit&section=11" title="Edit section: See also"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/wiki/Hydrogen_sensor" title="Hydrogen sensor">Hydrogen sensor</a></li></ul> <div class="mw-heading mw-heading2"><h2 id="References">References</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Palladium_hydride&action=edit&section=12" title="Edit section: References"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1239543626">.mw-parser-output .reflist{margin-bottom:0.5em;list-style-type:decimal}@media screen{.mw-parser-output .reflist{font-size:90%}}.mw-parser-output .reflist .references{font-size:100%;margin-bottom:0;list-style-type:inherit}.mw-parser-output .reflist-columns-2{column-width:30em}.mw-parser-output .reflist-columns-3{column-width:25em}.mw-parser-output .reflist-columns{margin-top:0.3em}.mw-parser-output .reflist-columns ol{margin-top:0}.mw-parser-output .reflist-columns li{page-break-inside:avoid;break-inside:avoid-column}.mw-parser-output .reflist-upper-alpha{list-style-type:upper-alpha}.mw-parser-output .reflist-upper-roman{list-style-type:upper-roman}.mw-parser-output .reflist-lower-alpha{list-style-type:lower-alpha}.mw-parser-output .reflist-lower-greek{list-style-type:lower-greek}.mw-parser-output .reflist-lower-roman{list-style-type:lower-roman}</style><div class="reflist reflist-columns references-column-width" style="column-width: 35em;"> <ol class="references"> <li id="cite_note-r1-1"><span class="mw-cite-backlink">^ <a href="#cite_ref-r1_1-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-r1_1-1"><sup><i><b>b</b></i></sup></a></span> <span class="reference-text"><style data-mw-deduplicate="TemplateStyles:r1238218222">.mw-parser-output cite.citation{font-style:inherit;word-wrap:break-word}.mw-parser-output .citation q{quotes:"\"""\"""'""'"}.mw-parser-output .citation:target{background-color:rgba(0,127,255,0.133)}.mw-parser-output .id-lock-free.id-lock-free a{background:url("//upload.wikimedia.org/wikipedia/commons/6/65/Lock-green.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-limited.id-lock-limited a,.mw-parser-output .id-lock-registration.id-lock-registration a{background:url("//upload.wikimedia.org/wikipedia/commons/d/d6/Lock-gray-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-subscription.id-lock-subscription a{background:url("//upload.wikimedia.org/wikipedia/commons/a/aa/Lock-red-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .cs1-ws-icon a{background:url("//upload.wikimedia.org/wikipedia/commons/4/4c/Wikisource-logo.svg")right 0.1em center/12px no-repeat}body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-free a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-limited a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-registration a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-subscription a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .cs1-ws-icon a{background-size:contain;padding:0 1em 0 0}.mw-parser-output .cs1-code{color:inherit;background:inherit;border:none;padding:inherit}.mw-parser-output .cs1-hidden-error{display:none;color:var(--color-error,#d33)}.mw-parser-output .cs1-visible-error{color:var(--color-error,#d33)}.mw-parser-output .cs1-maint{display:none;color:#085;margin-left:0.3em}.mw-parser-output .cs1-kern-left{padding-left:0.2em}.mw-parser-output .cs1-kern-right{padding-right:0.2em}.mw-parser-output .citation .mw-selflink{font-weight:inherit}@media screen{.mw-parser-output .cs1-format{font-size:95%}html.skin-theme-clientpref-night .mw-parser-output .cs1-maint{color:#18911f}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .cs1-maint{color:#18911f}}</style><cite id="CITEREFManchesterSan-MartinPitre1994" class="citation journal cs1">Manchester, F. D.; San-Martin, A.; Pitre, J. M. (February 1994). "The H-Pd (hydrogen-palladium) System". <i>Journal of Phase Equilibria</i>. <b>15</b> (1): <span class="nowrap">62–</span>83. <a href="/wiki/Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.1007%2FBF02667685">10.1007/BF02667685</a>. <a href="/wiki/S2CID_(identifier)" class="mw-redirect" title="S2CID (identifier)">S2CID</a> <a rel="nofollow" class="external text" href="https://api.semanticscholar.org/CorpusID:95343702">95343702</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Journal+of+Phase+Equilibria&rft.atitle=The+H-Pd+%28hydrogen-palladium%29+System&rft.volume=15&rft.issue=1&rft.pages=%3Cspan+class%3D%22nowrap%22%3E62-%3C%2Fspan%3E83&rft.date=1994-02&rft_id=info%3Adoi%2F10.1007%2FBF02667685&rft_id=https%3A%2F%2Fapi.semanticscholar.org%2FCorpusID%3A95343702%23id-name%3DS2CID&rft.aulast=Manchester&rft.aufirst=F.+D.&rft.au=San-Martin%2C+A.&rft.au=Pitre%2C+J.+M.&rfr_id=info%3Asid%2Fen.wikipedia.org%3APalladium+hydride" class="Z3988"></span></span> </li> <li id="cite_note-grochala-2"><span class="mw-cite-backlink">^ <a href="#cite_ref-grochala_2-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-grochala_2-1"><sup><i><b>b</b></i></sup></a></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222" /><cite id="CITEREFGrochalaEdwards2004" class="citation journal cs1">Grochala, Wojciech; Edwards, Peter P. (March 2004). "Thermal Decomposition of the Non-Interstitial Hydrides for the Storage and Production of Hydrogen". <i>Chemical Reviews</i>. <b>104</b> (3): <span class="nowrap">1283–</span>1316. <a href="/wiki/Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.1021%2Fcr030691s">10.1021/cr030691s</a>. <a href="/wiki/PMID_(identifier)" class="mw-redirect" title="PMID (identifier)">PMID</a> <a rel="nofollow" class="external text" href="https://pubmed.ncbi.nlm.nih.gov/15008624">15008624</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Chemical+Reviews&rft.atitle=Thermal+Decomposition+of+the+Non-Interstitial+Hydrides+for+the+Storage+and+Production+of+Hydrogen&rft.volume=104&rft.issue=3&rft.pages=%3Cspan+class%3D%22nowrap%22%3E1283-%3C%2Fspan%3E1316&rft.date=2004-03&rft_id=info%3Adoi%2F10.1021%2Fcr030691s&rft_id=info%3Apmid%2F15008624&rft.aulast=Grochala&rft.aufirst=Wojciech&rft.au=Edwards%2C+Peter+P.&rfr_id=info%3Asid%2Fen.wikipedia.org%3APalladium+hydride" class="Z3988"></span></span> </li> <li id="cite_note-gr-3"><span class="mw-cite-backlink">^ <a href="#cite_ref-gr_3-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-gr_3-1"><sup><i><b>b</b></i></sup></a> <a href="#cite_ref-gr_3-2"><sup><i><b>c</b></i></sup></a></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222" /><cite id="CITEREFGreenwoodEarnshaw1997" class="citation book cs1"><a href="/wiki/Norman_Greenwood" title="Norman Greenwood">Greenwood, Norman N.</a>; Earnshaw, Alan (1997). <i>Chemistry of the Elements</i> (2nd ed.). <a href="/wiki/Butterworth-Heinemann" title="Butterworth-Heinemann">Butterworth-Heinemann</a>. pp. <span class="nowrap">1150–</span>151. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/978-0-08-037941-8" title="Special:BookSources/978-0-08-037941-8"><bdi>978-0-08-037941-8</bdi></a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=Chemistry+of+the+Elements&rft.pages=%3Cspan+class%3D%22nowrap%22%3E1150-%3C%2Fspan%3E151&rft.edition=2nd&rft.pub=Butterworth-Heinemann&rft.date=1997&rft.isbn=978-0-08-037941-8&rft.aulast=Greenwood&rft.aufirst=Norman+N.&rft.au=Earnshaw%2C+Alan&rfr_id=info%3Asid%2Fen.wikipedia.org%3APalladium+hydride" class="Z3988"></span></span> </li> <li id="cite_note-supercond-4"><span class="mw-cite-backlink">^ <a href="#cite_ref-supercond_4-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-supercond_4-1"><sup><i><b>b</b></i></sup></a> <a href="#cite_ref-supercond_4-2"><sup><i><b>c</b></i></sup></a> <a href="#cite_ref-supercond_4-3"><sup><i><b>d</b></i></sup></a> <a href="#cite_ref-supercond_4-4"><sup><i><b>e</b></i></sup></a> <a href="#cite_ref-supercond_4-5"><sup><i><b>f</b></i></sup></a> <a href="#cite_ref-supercond_4-6"><sup><i><b>g</b></i></sup></a> <a href="#cite_ref-supercond_4-7"><sup><i><b>h</b></i></sup></a> <a href="#cite_ref-supercond_4-8"><sup><i><b>i</b></i></sup></a> <a href="#cite_ref-supercond_4-9"><sup><i><b>j</b></i></sup></a> <a href="#cite_ref-supercond_4-10"><sup><i><b>k</b></i></sup></a> <a href="#cite_ref-supercond_4-11"><sup><i><b>l</b></i></sup></a> <a href="#cite_ref-supercond_4-12"><sup><i><b>m</b></i></sup></a> <a href="#cite_ref-supercond_4-13"><sup><i><b>n</b></i></sup></a> <a href="#cite_ref-supercond_4-14"><sup><i><b>o</b></i></sup></a> <a href="#cite_ref-supercond_4-15"><sup><i><b>p</b></i></sup></a> <a href="#cite_ref-supercond_4-16"><sup><i><b>q</b></i></sup></a> <a href="#cite_ref-supercond_4-17"><sup><i><b>r</b></i></sup></a></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222" /><cite id="CITEREFKawaeInagakiWenHirota2020" class="citation journal cs1">Kawae, Tatsuya; Inagaki, Yuji; Wen, Si; Hirota, Souhei; Itou, Daiki; Kimura, Takashi (15 May 2020). <a rel="nofollow" class="external text" href="https://doi.org/10.7566%2FJPSJ.89.051004">"Superconductivity in Palladium Hydride Systems"</a>. <i>Journal of the Physical Society of Japan</i>. <b>89</b> (5): 051004. <a href="/wiki/Bibcode_(identifier)" class="mw-redirect" title="Bibcode (identifier)">Bibcode</a>:<a rel="nofollow" class="external text" href="https://ui.adsabs.harvard.edu/abs/2020JPSJ...89e1004K">2020JPSJ...89e1004K</a>. <a href="/wiki/Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<span class="id-lock-free" title="Freely accessible"><a rel="nofollow" class="external text" href="https://doi.org/10.7566%2FJPSJ.89.051004">10.7566/JPSJ.89.051004</a></span>. <a href="/wiki/Hdl_(identifier)" class="mw-redirect" title="Hdl (identifier)">hdl</a>:<span class="id-lock-free" title="Freely accessible"><a rel="nofollow" class="external text" href="https://hdl.handle.net/2324%2F7172285">2324/7172285</a></span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Journal+of+the+Physical+Society+of+Japan&rft.atitle=Superconductivity+in+Palladium+Hydride+Systems&rft.volume=89&rft.issue=5&rft.pages=051004&rft.date=2020-05-15&rft_id=info%3Ahdl%2F2324%2F7172285&rft_id=info%3Adoi%2F10.7566%2FJPSJ.89.051004&rft_id=info%3Abibcode%2F2020JPSJ...89e1004K&rft.aulast=Kawae&rft.aufirst=Tatsuya&rft.au=Inagaki%2C+Yuji&rft.au=Wen%2C+Si&rft.au=Hirota%2C+Souhei&rft.au=Itou%2C+Daiki&rft.au=Kimura%2C+Takashi&rft_id=https%3A%2F%2Fdoi.org%2F10.7566%252FJPSJ.89.051004&rfr_id=info%3Asid%2Fen.wikipedia.org%3APalladium+hydride" class="Z3988"></span></span> </li> <li id="cite_note-5"><span class="mw-cite-backlink"><b><a href="#cite_ref-5">^</a></b></span> <span class="reference-text">Ralph Wolf; Khalid Mansour. <a rel="nofollow" class="external text" href="http://www.psc.edu/science/Wolf/Wolf.html">"The Amazing Metal Sponge: Soaking Up Hydrogen"</a> <a rel="nofollow" class="external text" href="https://web.archive.org/web/20151116143530/http://www.psc.edu/science/Wolf/Wolf.html">Archived</a> 2015-11-16 at the <a href="/wiki/Wayback_Machine" title="Wayback Machine">Wayback Machine</a>. 1995.</span> </li> <li id="cite_note-6"><span class="mw-cite-backlink"><b><a href="#cite_ref-6">^</a></b></span> <span class="reference-text"><a rel="nofollow" class="external text" href="http://www.psc.edu/science/Wolf/Wolf-ext.html">"Extending the Life of Palladium Beds"</a> <a rel="nofollow" class="external text" href="https://web.archive.org/web/20151031201218/http://www.psc.edu/science/Wolf/Wolf-ext.html">Archived</a> 2015-10-31 at the <a href="/wiki/Wayback_Machine" title="Wayback Machine">Wayback Machine</a>.</span> </li> <li id="cite_note-particle_size-7"><span class="mw-cite-backlink">^ <a href="#cite_ref-particle_size_7-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-particle_size_7-1"><sup><i><b>b</b></i></sup></a> <a href="#cite_ref-particle_size_7-2"><sup><i><b>c</b></i></sup></a></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222" /><cite id="CITEREFTewMillervan_Bokhoven2009" class="citation journal cs1">Tew, Min Wei; Miller, Jeffrey T.; van Bokhoven, Jeroen A. (27 August 2009). "Particle Size Effect of Hydride Formation and Surface Hydrogen Adsorption of Nanosized Palladium Catalysts: L 3 Edge vs K Edge X-ray Absorption Spectroscopy". <i>The Journal of Physical Chemistry C</i>. <b>113</b> (34): <span class="nowrap">15140–</span>15147. <a href="/wiki/Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.1021%2Fjp902542f">10.1021/jp902542f</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=The+Journal+of+Physical+Chemistry+C&rft.atitle=Particle+Size+Effect+of+Hydride+Formation+and+Surface+Hydrogen+Adsorption+of+Nanosized+Palladium+Catalysts%3A+L+3+Edge+vs+K+Edge+X-ray+Absorption+Spectroscopy&rft.volume=113&rft.issue=34&rft.pages=%3Cspan+class%3D%22nowrap%22%3E15140-%3C%2Fspan%3E15147&rft.date=2009-08-27&rft_id=info%3Adoi%2F10.1021%2Fjp902542f&rft.aulast=Tew&rft.aufirst=Min+Wei&rft.au=Miller%2C+Jeffrey+T.&rft.au=van+Bokhoven%2C+Jeroen+A.&rfr_id=info%3Asid%2Fen.wikipedia.org%3APalladium+hydride" class="Z3988"></span></span> </li> <li id="cite_note-e-p-band-8"><span class="mw-cite-backlink">^ <a href="#cite_ref-e-p-band_8-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-e-p-band_8-1"><sup><i><b>b</b></i></sup></a> <a href="#cite_ref-e-p-band_8-2"><sup><i><b>c</b></i></sup></a> <a href="#cite_ref-e-p-band_8-3"><sup><i><b>d</b></i></sup></a></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222" /><cite id="CITEREFSetayandehWebbGray2020" class="citation journal cs1">Setayandeh, S. S.; Webb, C. J.; Gray, E. MacA. (1 December 2020). "Electron and phonon band structures of palladium and palladium hydride: A review". <i>Progress in Solid State Chemistry</i>. <b>60</b>: 100285. <a href="/wiki/Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.1016%2Fj.progsolidstchem.2020.100285">10.1016/j.progsolidstchem.2020.100285</a>. <a href="/wiki/S2CID_(identifier)" class="mw-redirect" title="S2CID (identifier)">S2CID</a> <a rel="nofollow" class="external text" href="https://api.semanticscholar.org/CorpusID:225592643">225592643</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Progress+in+Solid+State+Chemistry&rft.atitle=Electron+and+phonon+band+structures+of+palladium+and+palladium+hydride%3A+A+review&rft.volume=60&rft.pages=100285&rft.date=2020-12-01&rft_id=info%3Adoi%2F10.1016%2Fj.progsolidstchem.2020.100285&rft_id=https%3A%2F%2Fapi.semanticscholar.org%2FCorpusID%3A225592643%23id-name%3DS2CID&rft.aulast=Setayandeh&rft.aufirst=S.+S.&rft.au=Webb%2C+C.+J.&rft.au=Gray%2C+E.+MacA.&rfr_id=info%3Asid%2Fen.wikipedia.org%3APalladium+hydride" class="Z3988"></span></span> </li> <li id="cite_note-xray-9"><span class="mw-cite-backlink"><b><a href="#cite_ref-xray_9-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222" /><cite id="CITEREFDavisLandryHorsleyBoudart1989" class="citation journal cs1">Davis, R. J.; Landry, S. M.; Horsley, J. A.; Boudart, M. (15 May 1989). "X-ray-absorption study of the interaction of hydrogen with clusters of supported palladium". <i>Physical Review B</i>. <b>39</b> (15): <span class="nowrap">10580–</span>10583. <a href="/wiki/Bibcode_(identifier)" class="mw-redirect" title="Bibcode (identifier)">Bibcode</a>:<a rel="nofollow" class="external text" href="https://ui.adsabs.harvard.edu/abs/1989PhRvB..3910580D">1989PhRvB..3910580D</a>. <a href="/wiki/Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.1103%2FPhysRevB.39.10580">10.1103/PhysRevB.39.10580</a>. <a href="/wiki/PMID_(identifier)" class="mw-redirect" title="PMID (identifier)">PMID</a> <a rel="nofollow" class="external text" href="https://pubmed.ncbi.nlm.nih.gov/9947864">9947864</a>. <a href="/wiki/S2CID_(identifier)" class="mw-redirect" title="S2CID (identifier)">S2CID</a> <a rel="nofollow" class="external text" href="https://api.semanticscholar.org/CorpusID:13476324">13476324</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Physical+Review+B&rft.atitle=X-ray-absorption+study+of+the+interaction+of+hydrogen+with+clusters+of+supported+palladium&rft.volume=39&rft.issue=15&rft.pages=%3Cspan+class%3D%22nowrap%22%3E10580-%3C%2Fspan%3E10583&rft.date=1989-05-15&rft_id=info%3Adoi%2F10.1103%2FPhysRevB.39.10580&rft_id=https%3A%2F%2Fapi.semanticscholar.org%2FCorpusID%3A13476324%23id-name%3DS2CID&rft_id=info%3Apmid%2F9947864&rft_id=info%3Abibcode%2F1989PhRvB..3910580D&rft.aulast=Davis&rft.aufirst=R.+J.&rft.au=Landry%2C+S.+M.&rft.au=Horsley%2C+J.+A.&rft.au=Boudart%2C+M.&rfr_id=info%3Asid%2Fen.wikipedia.org%3APalladium+hydride" class="Z3988"></span></span> </li> <li id="cite_note-Tripodi2003-10"><span class="mw-cite-backlink"><b><a href="#cite_ref-Tripodi2003_10-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222" /><cite id="CITEREFTripodiDi_GioacchinoBorelliVinko2003" class="citation journal cs1 cs1-prop-long-vol">Tripodi, Paolo; Di Gioacchino, Daniele; Borelli, Rodolfo; Vinko, Jenny Darja (May 2003). "Possibility of high temperature superconducting phases in PdH". <i>Physica C: Superconductivity</i>. <span class="nowrap">388–</span>389: <span class="nowrap">571–</span>572. <a href="/wiki/Bibcode_(identifier)" class="mw-redirect" title="Bibcode (identifier)">Bibcode</a>:<a rel="nofollow" class="external text" href="https://ui.adsabs.harvard.edu/abs/2003PhyC..388..571T">2003PhyC..388..571T</a>. <a href="/wiki/Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.1016%2FS0921-4534%2802%2902745-4">10.1016/S0921-4534(02)02745-4</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Physica+C%3A+Superconductivity&rft.atitle=Possibility+of+high+temperature+superconducting+phases+in+PdH&rft.volume=388-389&rft.pages=%3Cspan+class%3D%22nowrap%22%3E571-%3C%2Fspan%3E572&rft.date=2003-05&rft_id=info%3Adoi%2F10.1016%2FS0921-4534%2802%2902745-4&rft_id=info%3Abibcode%2F2003PhyC..388..571T&rft.aulast=Tripodi&rft.aufirst=Paolo&rft.au=Di+Gioacchino%2C+Daniele&rft.au=Borelli%2C+Rodolfo&rft.au=Vinko%2C+Jenny+Darja&rfr_id=info%3Asid%2Fen.wikipedia.org%3APalladium+hydride" class="Z3988"></span></span> </li> <li id="cite_note-Tripodi2004-11"><span class="mw-cite-backlink"><b><a href="#cite_ref-Tripodi2004_11-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222" /><cite id="CITEREFTripodiDi_GioacchinoVinko2004" class="citation journal cs1 cs1-prop-long-vol">Tripodi, Paolo; Di Gioacchino, Daniele; Vinko, Jenny Darja (August 2004). "Superconductivity in PdH: phenomenological explanation". <i>Physica C: Superconductivity</i>. <span class="nowrap">408–</span>410: <span class="nowrap">350–</span>352. <a href="/wiki/Bibcode_(identifier)" class="mw-redirect" title="Bibcode (identifier)">Bibcode</a>:<a rel="nofollow" class="external text" href="https://ui.adsabs.harvard.edu/abs/2004PhyC..408..350T">2004PhyC..408..350T</a>. <a href="/wiki/Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.1016%2Fj.physc.2004.02.099">10.1016/j.physc.2004.02.099</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Physica+C%3A+Superconductivity&rft.atitle=Superconductivity+in+PdH%3A+phenomenological+explanation&rft.volume=408-410&rft.pages=%3Cspan+class%3D%22nowrap%22%3E350-%3C%2Fspan%3E352&rft.date=2004-08&rft_id=info%3Adoi%2F10.1016%2Fj.physc.2004.02.099&rft_id=info%3Abibcode%2F2004PhyC..408..350T&rft.aulast=Tripodi&rft.aufirst=Paolo&rft.au=Di+Gioacchino%2C+Daniele&rft.au=Vinko%2C+Jenny+Darja&rfr_id=info%3Asid%2Fen.wikipedia.org%3APalladium+hydride" class="Z3988"></span></span> </li> <li id="cite_note-Tripodi2007-12"><span class="mw-cite-backlink"><b><a href="#cite_ref-Tripodi2007_12-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222" /><cite id="CITEREFTripodiDi_GioacchinoVinko2007" class="citation journal cs1">Tripodi, Paolo; Di Gioacchino, Daniele; Vinko, Jenny Darja (2007). "A review of high temperature superconducting property of PdH system". <i>International Journal of Modern Physics B</i>. <b>21</b> (18&19): <span class="nowrap">3343–</span>3347. <a href="/wiki/Bibcode_(identifier)" class="mw-redirect" title="Bibcode (identifier)">Bibcode</a>:<a rel="nofollow" class="external text" href="https://ui.adsabs.harvard.edu/abs/2007IJMPB..21.3343T">2007IJMPB..21.3343T</a>. <a href="/wiki/Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.1142%2FS0217979207044524">10.1142/S0217979207044524</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=International+Journal+of+Modern+Physics+B&rft.atitle=A+review+of+high+temperature+superconducting+property+of+PdH+system&rft.volume=21&rft.issue=18%2619&rft.pages=%3Cspan+class%3D%22nowrap%22%3E3343-%3C%2Fspan%3E3347&rft.date=2007&rft_id=info%3Adoi%2F10.1142%2FS0217979207044524&rft_id=info%3Abibcode%2F2007IJMPB..21.3343T&rft.aulast=Tripodi&rft.aufirst=Paolo&rft.au=Di+Gioacchino%2C+Daniele&rft.au=Vinko%2C+Jenny+Darja&rfr_id=info%3Asid%2Fen.wikipedia.org%3APalladium+hydride" class="Z3988"></span></span> </li> <li id="cite_note-13"><span class="mw-cite-backlink"><b><a href="#cite_ref-13">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222" /><cite id="CITEREFBaranowskiDębowska2007" class="citation journal cs1">Baranowski, B.; Dębowska, L. (June 2007). "Remarks on superconductivity in PdH". <i>Journal of Alloys and Compounds</i>. <b>437</b> (<span class="nowrap">1–</span>2): <span class="nowrap">L4 –</span> <span class="nowrap">L5</span>. <a href="/wiki/Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.1016%2Fj.jallcom.2006.07.082">10.1016/j.jallcom.2006.07.082</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Journal+of+Alloys+and+Compounds&rft.atitle=Remarks+on+superconductivity+in+PdH&rft.volume=437&rft.issue=%3Cspan+class%3D%22nowrap%22%3E1%E2%80%93%3C%2Fspan%3E2&rft.pages=%3Cspan+class%3D%22nowrap%22%3EL4+-%3C%2Fspan%3E+%3Cspan+class%3D%22nowrap%22%3EL5%3C%2Fspan%3E&rft.date=2007-06&rft_id=info%3Adoi%2F10.1016%2Fj.jallcom.2006.07.082&rft.aulast=Baranowski&rft.aufirst=B.&rft.au=D%C4%99bowska%2C+L.&rfr_id=info%3Asid%2Fen.wikipedia.org%3APalladium+hydride" class="Z3988"></span></span> </li> <li id="cite_note-14"><span class="mw-cite-backlink"><b><a href="#cite_ref-14">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222" /><cite id="CITEREFMitsuiRoseFominOgletree2003" class="citation journal cs1">Mitsui, T.; Rose, M. K.; Fomin, E.; Ogletree, D. F.; Salmeron, M. (April 2003). <a rel="nofollow" class="external text" href="https://zenodo.org/record/1233259">"Dissociative hydrogen adsorption on palladium requires aggregates of three or more vacancies"</a>. <i>Nature</i>. <b>422</b> (6933): <span class="nowrap">705–</span>707. <a href="/wiki/Bibcode_(identifier)" class="mw-redirect" title="Bibcode (identifier)">Bibcode</a>:<a rel="nofollow" class="external text" href="https://ui.adsabs.harvard.edu/abs/2003Natur.422..705M">2003Natur.422..705M</a>. <a href="/wiki/Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.1038%2Fnature01557">10.1038/nature01557</a>. <a href="/wiki/PMID_(identifier)" class="mw-redirect" title="PMID (identifier)">PMID</a> <a rel="nofollow" class="external text" href="https://pubmed.ncbi.nlm.nih.gov/12700757">12700757</a>. <a href="/wiki/S2CID_(identifier)" class="mw-redirect" title="S2CID (identifier)">S2CID</a> <a rel="nofollow" class="external text" href="https://api.semanticscholar.org/CorpusID:4392775">4392775</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Nature&rft.atitle=Dissociative+hydrogen+adsorption+on+palladium+requires+aggregates+of+three+or+more+vacancies&rft.volume=422&rft.issue=6933&rft.pages=%3Cspan+class%3D%22nowrap%22%3E705-%3C%2Fspan%3E707&rft.date=2003-04&rft_id=info%3Adoi%2F10.1038%2Fnature01557&rft_id=https%3A%2F%2Fapi.semanticscholar.org%2FCorpusID%3A4392775%23id-name%3DS2CID&rft_id=info%3Apmid%2F12700757&rft_id=info%3Abibcode%2F2003Natur.422..705M&rft.aulast=Mitsui&rft.aufirst=T.&rft.au=Rose%2C+M.+K.&rft.au=Fomin%2C+E.&rft.au=Ogletree%2C+D.+F.&rft.au=Salmeron%2C+M.&rft_id=https%3A%2F%2Fzenodo.org%2Frecord%2F1233259&rfr_id=info%3Asid%2Fen.wikipedia.org%3APalladium+hydride" class="Z3988"></span></span> </li> <li id="cite_note-15"><span class="mw-cite-backlink"><b><a href="#cite_ref-15">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222" /><cite id="CITEREFLopezŁodzianaIllasSalmeron2004" class="citation journal cs1">Lopez, Nuria; Łodziana, Zbigniew; Illas, Francesc; Salmeron, Miquel (29 September 2004). "When Langmuir Is Too Simple: H 2 Dissociation on Pd(111) at High Coverage". <i>Physical Review Letters</i>. <b>93</b> (14): 146103. <a href="/wiki/Bibcode_(identifier)" class="mw-redirect" title="Bibcode (identifier)">Bibcode</a>:<a rel="nofollow" class="external text" href="https://ui.adsabs.harvard.edu/abs/2004PhRvL..93n6103L">2004PhRvL..93n6103L</a>. <a href="/wiki/Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.1103%2FPhysRevLett.93.146103">10.1103/PhysRevLett.93.146103</a>. <a href="/wiki/Hdl_(identifier)" class="mw-redirect" title="Hdl (identifier)">hdl</a>:<span class="id-lock-free" title="Freely accessible"><a rel="nofollow" class="external text" href="https://hdl.handle.net/2445%2F13263">2445/13263</a></span>. <a href="/wiki/PMID_(identifier)" class="mw-redirect" title="PMID (identifier)">PMID</a> <a rel="nofollow" class="external text" href="https://pubmed.ncbi.nlm.nih.gov/15524815">15524815</a>. <a href="/wiki/S2CID_(identifier)" class="mw-redirect" title="S2CID (identifier)">S2CID</a> <a rel="nofollow" class="external text" href="https://api.semanticscholar.org/CorpusID:4809736">4809736</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Physical+Review+Letters&rft.atitle=When+Langmuir+Is+Too+Simple%3A+H+2+Dissociation+on+Pd%28111%29+at+High+Coverage&rft.volume=93&rft.issue=14&rft.pages=146103&rft.date=2004-09-29&rft_id=info%3Ahdl%2F2445%2F13263&rft_id=https%3A%2F%2Fapi.semanticscholar.org%2FCorpusID%3A4809736%23id-name%3DS2CID&rft_id=info%3Abibcode%2F2004PhRvL..93n6103L&rft_id=info%3Apmid%2F15524815&rft_id=info%3Adoi%2F10.1103%2FPhysRevLett.93.146103&rft.aulast=Lopez&rft.aufirst=Nuria&rft.au=%C5%81odziana%2C+Zbigniew&rft.au=Illas%2C+Francesc&rft.au=Salmeron%2C+Miquel&rfr_id=info%3Asid%2Fen.wikipedia.org%3APalladium+hydride" class="Z3988"></span></span> </li> <li id="cite_note-16"><span class="mw-cite-backlink"><b><a href="#cite_ref-16">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222" /><cite id="CITEREFHäussingerLohmüllerWatson2011" class="citation book cs1">Häussinger, Peter; Lohmüller, Reiner; Watson, Allan M. (2011). "Hydrogen, 3. Purification". <i>Ullmann's Encyclopedia of Industrial Chemistry</i>. <a href="/wiki/Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.1002%2F14356007.o13_o04">10.1002/14356007.o13_o04</a>. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/978-3-527-30385-4" title="Special:BookSources/978-3-527-30385-4"><bdi>978-3-527-30385-4</bdi></a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=bookitem&rft.atitle=Hydrogen%2C+3.+Purification&rft.btitle=Ullmann%27s+Encyclopedia+of+Industrial+Chemistry&rft.date=2011&rft_id=info%3Adoi%2F10.1002%2F14356007.o13_o04&rft.isbn=978-3-527-30385-4&rft.aulast=H%C3%A4ussinger&rft.aufirst=Peter&rft.au=Lohm%C3%BCller%2C+Reiner&rft.au=Watson%2C+Allan+M.&rfr_id=info%3Asid%2Fen.wikipedia.org%3APalladium+hydride" class="Z3988"></span></span> </li> <li id="cite_note-17"><span class="mw-cite-backlink"><b><a href="#cite_ref-17">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222" /><cite id="CITEREFJohanssonSkúlasonNielsenMurphy2010" class="citation journal cs1">Johansson, M.; Skúlason, E.; Nielsen, G.; Murphy, S.; Nielsen, R.M.; Chorkendorff, I. (April 2010). "Hydrogen adsorption on palladium and palladium hydride at 1bar". <i>Surface Science</i>. <b>604</b> (<span class="nowrap">7–</span>8): <span class="nowrap">718–</span>729. <a href="/wiki/Bibcode_(identifier)" class="mw-redirect" title="Bibcode (identifier)">Bibcode</a>:<a rel="nofollow" class="external text" href="https://ui.adsabs.harvard.edu/abs/2010SurSc.604..718J">2010SurSc.604..718J</a>. <a href="/wiki/Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.1016%2Fj.susc.2010.01.023">10.1016/j.susc.2010.01.023</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Surface+Science&rft.atitle=Hydrogen+adsorption+on+palladium+and+palladium+hydride+at+1bar&rft.volume=604&rft.issue=%3Cspan+class%3D%22nowrap%22%3E7%E2%80%93%3C%2Fspan%3E8&rft.pages=%3Cspan+class%3D%22nowrap%22%3E718-%3C%2Fspan%3E729&rft.date=2010-04&rft_id=info%3Adoi%2F10.1016%2Fj.susc.2010.01.023&rft_id=info%3Abibcode%2F2010SurSc.604..718J&rft.aulast=Johansson&rft.aufirst=M.&rft.au=Sk%C3%BAlason%2C+E.&rft.au=Nielsen%2C+G.&rft.au=Murphy%2C+S.&rft.au=Nielsen%2C+R.M.&rft.au=Chorkendorff%2C+I.&rfr_id=info%3Asid%2Fen.wikipedia.org%3APalladium+hydride" class="Z3988"></span></span> </li> </ol></div> <div class="mw-heading mw-heading2"><h2 id="External_links">External links</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Palladium_hydride&action=edit&section=13" title="Edit section: External links"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222" /><cite id="CITEREFGrashoffPilkingtonCorti1983" class="citation journal cs1">Grashoff, G. J.; Pilkington, C. E.; Corti, C. W. (1 October 1983). <a rel="nofollow" class="external text" href="http://www.platinummetalsreview.com/pdf/pmr-v27-i4-157-169.pdf">"The Purification of Hydrogen"</a> <span class="cs1-format">(PDF)</span>. <i>Platinum Metals Review</i>. <b>27</b> (4): <span class="nowrap">157–</span>169.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Platinum+Metals+Review&rft.atitle=The+Purification+of+Hydrogen&rft.volume=27&rft.issue=4&rft.pages=%3Cspan+class%3D%22nowrap%22%3E157-%3C%2Fspan%3E169&rft.date=1983-10-01&rft.aulast=Grashoff&rft.aufirst=G.+J.&rft.au=Pilkington%2C+C.+E.&rft.au=Corti%2C+C.+W.&rft_id=http%3A%2F%2Fwww.platinummetalsreview.com%2Fpdf%2Fpmr-v27-i4-157-169.pdf&rfr_id=info%3Asid%2Fen.wikipedia.org%3APalladium+hydride" class="Z3988"></span></li> <li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222" /><cite id="CITEREFAltunoglu1994" class="citation thesis cs1">Altunoglu, Abdulkadir (1994). <i>Hydrogen Permeation Through Nickel And Nickel Alloys: Surface Reactions And Trapping</i> (Thesis). <a href="/wiki/Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.21954%2Fou.ro.00004d82">10.21954/ou.ro.00004d82</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.title=Hydrogen+Permeation+Through+Nickel+And+Nickel+Alloys%3A+Surface+Reactions+And+Trapping&rft.date=1994&rft_id=info%3Adoi%2F10.21954%2Fou.ro.00004d82&rft.aulast=Altunoglu&rft.aufirst=Abdulkadir&rfr_id=info%3Asid%2Fen.wikipedia.org%3APalladium+hydride" class="Z3988"></span></li> <li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222" /><cite id="CITEREFBregerGileadi1971" class="citation journal cs1">Breger, V.; Gileadi, E. (1 February 1971). "Adsorption and absorption of hydrogen in palladium". <i>Electrochimica Acta</i>. <b>16</b> (2): <span class="nowrap">177–</span>190. <a href="/wiki/Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.1016%2F0013-4686%2871%2980001-4">10.1016/0013-4686(71)80001-4</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Electrochimica+Acta&rft.atitle=Adsorption+and+absorption+of+hydrogen+in+palladium&rft.volume=16&rft.issue=2&rft.pages=%3Cspan+class%3D%22nowrap%22%3E177-%3C%2Fspan%3E190&rft.date=1971-02-01&rft_id=info%3Adoi%2F10.1016%2F0013-4686%2871%2980001-4&rft.aulast=Breger&rft.aufirst=V.&rft.au=Gileadi%2C+E.&rfr_id=info%3Asid%2Fen.wikipedia.org%3APalladium+hydride" class="Z3988"></span></li></ul> <div class="navbox-styles"><style data-mw-deduplicate="TemplateStyles:r1129693374">.mw-parser-output .hlist dl,.mw-parser-output .hlist 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abbr{color:var(--color-base)!important}}@media print{.mw-parser-output .navbar{display:none!important}}</style><div class="navbar plainlinks hlist navbar-mini"><ul><li class="nv-view"><a href="/wiki/Template:Hydrides_by_group" title="Template:Hydrides by group"><abbr title="View this template">v</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:Hydrides_by_group" title="Template talk:Hydrides by group"><abbr title="Discuss this template">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:Hydrides_by_group" title="Special:EditPage/Template:Hydrides by group"><abbr title="Edit this template">e</abbr></a></li></ul></div><div id="Binary_compounds_of_hydrogen571" style="font-size:114%;margin:0 4em"><a href="/wiki/Binary_compounds_of_hydrogen" title="Binary compounds of hydrogen">Binary compounds of hydrogen</a></div></th></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Hydride#Ionic_hydrides" title="Hydride">Alkali metal <br />(Group 1) hydrides</a></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Lithium_hydride" title="Lithium hydride">LiH</a></li> <li><a href="/wiki/Sodium_hydride" title="Sodium hydride">NaH</a></li> <li><a href="/wiki/Potassium_hydride" title="Potassium hydride">KH</a></li> <li><a href="/wiki/Rubidium_hydride" title="Rubidium hydride">RbH</a></li> <li><a href="/wiki/Caesium_hydride" title="Caesium hydride">CsH</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Hydride#Ionic_hydrides" title="Hydride">Alkaline (Group 2) <br />earth hydrides</a></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th id="Monohydrides12" scope="row" class="navbox-group" style="width:1%">Monohydrides</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Beryllium_monohydride" title="Beryllium monohydride">BeH</a></li> <li><a href="/wiki/Magnesium_monohydride" title="Magnesium monohydride">MgH</a></li> <li><a href="/wiki/Calcium_monohydride" title="Calcium monohydride">CaH</a></li> <li><a href="/w/index.php?title=Strontium_monohydride&action=edit&redlink=1" class="new" title="Strontium monohydride (page does not exist)">SrH</a></li> <li><a href="/w/index.php?title=Barium_monohydride&action=edit&redlink=1" class="new" title="Barium monohydride (page does not exist)">BaH</a></li></ul> </div></td></tr></tbody></table><div> </div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th id="Dihydrides10" scope="row" class="navbox-group" style="width:1%">Dihydrides</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Beryllium_hydride" title="Beryllium hydride">BeH<sub>2</sub></a></li> <li><a href="/wiki/Magnesium_hydride" title="Magnesium hydride">MgH<sub>2</sub></a></li> <li><a href="/wiki/Calcium_hydride" title="Calcium hydride">CaH<sub>2</sub></a></li> <li><a href="/wiki/Strontium_hydride" title="Strontium hydride">SrH<sub>2</sub></a></li> <li><a href="/wiki/Barium_hydride" title="Barium hydride">BaH<sub>2</sub></a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Group_13_hydride" title="Group 13 hydride">Group 13 <br />hydrides</a></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th id="Boranes11" scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Boranes" title="Boranes">Boranes</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Borane" title="Borane">BH<sub>3</sub></a></li> <li><a href="/wiki/Boron_monohydride" title="Boron monohydride">BH</a></li> <li><a href="/wiki/Diborane" title="Diborane">B<sub>2</sub>H<sub>6</sub></a></li> <li><a href="/wiki/Diborane(2)" title="Diborane(2)">B<sub>2</sub>H<sub>2</sub></a></li> <li><a href="/wiki/Diborane(4)" title="Diborane(4)">B<sub>2</sub>H<sub>4</sub></a></li> <li><a href="/wiki/Tetraborane" title="Tetraborane">B<sub>4</sub>H<sub>10</sub></a></li> <li><a href="/wiki/Pentaborane(9)" title="Pentaborane(9)">B<sub>5</sub>H<sub>9</sub></a></li> <li><a href="/wiki/Pentaborane(11)" title="Pentaborane(11)">B<sub>5</sub>H<sub>11</sub></a></li> <li><a href="/wiki/Hexaborane(10)" title="Hexaborane(10)">B<sub>6</sub>H<sub>10</sub></a></li> <li><a href="/wiki/Hexaborane(12)" title="Hexaborane(12)">B<sub>6</sub>H<sub>12</sub></a></li> <li><a href="/wiki/Decaborane" title="Decaborane">B<sub>10</sub>H<sub>14</sub></a></li> <li><a href="/wiki/Octadecaborane" title="Octadecaborane">B<sub>18</sub>H<sub>22</sub></a></li></ul> </div></td></tr></tbody></table><div> </div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th id="Alanes6" scope="row" class="navbox-group" style="width:1%">Alanes</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Aluminium_hydride" title="Aluminium hydride">AlH<sub>3</sub></a></li> <li><a href="/wiki/Dialane" title="Dialane">Al<sub>2</sub>H<sub>6</sub></a></li></ul> </div></td></tr></tbody></table><div> </div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th id="Gallanes8" scope="row" class="navbox-group" style="width:1%">Gallanes</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Gallane" title="Gallane">GaH<sub>3</sub></a></li> <li><a href="/wiki/Digallane" title="Digallane">Ga<sub>2</sub>H<sub>6</sub></a></li></ul> </div></td></tr></tbody></table><div> </div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th id="Indiganes9" scope="row" class="navbox-group" style="width:1%">Indiganes</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Indium_trihydride" title="Indium trihydride">InH<sub>3</sub></a></li> <li><a href="/w/index.php?title=Diindigane&action=edit&redlink=1" class="new" title="Diindigane (page does not exist)">In<sub>2</sub>H<sub>6</sub></a></li></ul> </div></td></tr></tbody></table><div> </div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th id="Thallanes9" scope="row" class="navbox-group" style="width:1%">Thallanes</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Thallane" title="Thallane">TlH<sub>3</sub></a></li> <li><a href="/w/index.php?title=Dithallane&action=edit&redlink=1" class="new" title="Dithallane (page does not exist)">Tl<sub>2</sub>H<sub>6</sub></a></li></ul> </div></td></tr></tbody></table><div> </div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th id="Nihonanes_(predicted)38" scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Nihonium" title="Nihonium">Nihonanes</a> (<i>predicted</i>)</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><i>NhH</i></li> <li><i>NhH<sub>3</sub></i></li> <li><i>Nh<sub>2</sub>H<sub>6</sub></i></li> <li><i>NhH<sub>5</sub></i></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Group_14_hydride" title="Group 14 hydride">Group 14 hydrides</a></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th id="Hydrocarbons28" scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Hydrocarbon" title="Hydrocarbon">Hydrocarbons</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Alkane" title="Alkane">alkanes</a></li> <li><a href="/wiki/Alkene" title="Alkene">alkenes</a></li> <li><a href="/wiki/Alkyne" title="Alkyne">alkynes</a></li> <li><a href="/wiki/Cycloalkane" title="Cycloalkane">Cycloalkanes</a></li> <li><a href="/wiki/Cycloalkene" title="Cycloalkene">Cycloalkenes</a></li> <li><a href="/wiki/Cycloalkyne" title="Cycloalkyne">Cycloalkynes</a></li> <li><a href="/wiki/Annulenes" class="mw-redirect" title="Annulenes">Annulenes</a></li></ul> </div></td></tr></tbody></table><div> </div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><td colspan="2" class="navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Methylidyne_radical" title="Methylidyne radical">CH</a></li> <li><a href="/wiki/Methylene_(compound)" title="Methylene (compound)">CH<sub>2</sub></a></li> <li><a href="/wiki/Methyl_radical" title="Methyl radical">CH<sub>3</sub></a></li> <li><a href="/wiki/Ethynyl_radical" title="Ethynyl radical">C<sub>2</sub>H</a></li></ul> </div></td></tr></tbody></table><div> </div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th id="Silanes11" scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Silanes" title="Silanes">Silanes</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Silane" title="Silane">SiH<sub>4</sub></a></li> <li><a href="/wiki/Disilane" title="Disilane">Si<sub>2</sub>H<sub>6</sub></a></li> <li><a href="/wiki/Trisilane" title="Trisilane">Si<sub>3</sub>H<sub>8</sub></a></li> <li><a href="/wiki/Tetrasilane" title="Tetrasilane">Si<sub>4</sub>H<sub>10</sub></a></li> <li><a href="/wiki/Pentasilane" class="mw-redirect" title="Pentasilane">Si<sub>5</sub>H<sub>12</sub></a></li> <li><a href="/wiki/Hexasilane" class="mw-redirect" title="Hexasilane">Si<sub>6</sub>H<sub>14</sub></a></li> <li><a href="/w/index.php?title=Heptasilane&action=edit&redlink=1" class="new" title="Heptasilane (page does not exist)">Si<sub>7</sub>H<sub>16</sub></a></li> <li><a href="/w/index.php?title=Octasilane&action=edit&redlink=1" class="new" title="Octasilane (page does not exist)">Si<sub>8</sub>H<sub>18</sub></a></li> <li><a href="/w/index.php?title=Nonasilane&action=edit&redlink=1" class="new" title="Nonasilane (page does not exist)">Si<sub>9</sub>H<sub>20</sub></a></li> <li><a href="/w/index.php?title=Decasilane&action=edit&redlink=1" class="new" title="Decasilane (page does not exist)">Si<sub>10</sub>H<sub>22</sub></a></li> <li><a href="/wiki/Silanes" title="Silanes">more...</a></li></ul> </div></td></tr></tbody></table><div> </div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th id="Silenes11" scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Silenes" title="Silenes">Silenes</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Disilene" title="Disilene">Si<sub>2</sub>H<sub>4</sub></a></li></ul> </div></td></tr></tbody></table><div> </div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th id="Silynes11" scope="row" class="navbox-group" style="width:1%"><a href="/w/index.php?title=Silynes&action=edit&redlink=1" class="new" title="Silynes (page does not exist)">Silynes</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Disilyne" title="Disilyne">Si<sub>2</sub>H<sub>2</sub></a></li> <li><a href="/wiki/Silicon_monohydride" class="mw-redirect" title="Silicon monohydride">SiH</a></li></ul> </div></td></tr></tbody></table><div> </div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th id="Germanes12" scope="row" class="navbox-group" style="width:1%"><a href="/w/index.php?title=Germanes&action=edit&redlink=1" class="new" title="Germanes (page does not exist)">Germanes</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Germane" title="Germane">GeH<sub>4</sub></a></li> <li><a href="/wiki/Digermane" title="Digermane">Ge<sub>2</sub>H<sub>6</sub></a></li> <li><a href="/w/index.php?title=Trigermane&action=edit&redlink=1" class="new" title="Trigermane (page does not exist)">Ge<sub>3</sub>H<sub>8</sub></a></li> <li><a href="/w/index.php?title=Tetragermane&action=edit&redlink=1" class="new" title="Tetragermane (page does not exist)">Ge<sub>4</sub>H<sub>10</sub></a></li> <li><a href="/w/index.php?title=Pentagermane&action=edit&redlink=1" class="new" title="Pentagermane (page does not exist)">Ge<sub>5</sub>H<sub>12</sub></a></li></ul> </div></td></tr></tbody></table><div></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th id="Stannanes13" scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Stannanes" class="mw-redirect" title="Stannanes">Stannanes</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Stannane" title="Stannane">SnH<sub>4</sub></a></li> <li><a href="/w/index.php?title=Distannane&action=edit&redlink=1" class="new" title="Distannane (page does not exist)">Sn<sub>2</sub>H<sub>6</sub></a></li></ul> </div></td></tr></tbody></table><div></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th id="Plumbanes9" scope="row" class="navbox-group" style="width:1%">Plumbanes</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Plumbane" title="Plumbane">PbH<sub>4</sub></a></li></ul> </div></td></tr></tbody></table><div></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th id="Flerovanes_(predicted)40" scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Flerovium" title="Flerovium">Flerovanes</a> (<i>predicted</i>)</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><i>FlH</i></li> <li><i>FlH<sub>2</sub></i></li> <li><i>FlH<sub>4</sub></i></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Pnictogen_hydride" title="Pnictogen hydride">Pnictogen <br />(Group 15) hydrides</a></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th id="Azanes16" scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Azane" title="Azane">Azanes</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Ammonia" title="Ammonia">NH<sub>3</sub></a></li> <li><a href="/wiki/Hydrazine" title="Hydrazine">N<sub>2</sub>H<sub>4</sub></a></li> <li><a href="/wiki/Triazane" title="Triazane">N<sub>3</sub>H<sub>5</sub></a></li> <li><a href="/w/index.php?title=Tetrazane&action=edit&redlink=1" class="new" title="Tetrazane (page does not exist)">N<sub>4</sub>H<sub>6</sub></a></li> <li><a href="/w/index.php?title=Pentazane&action=edit&redlink=1" class="new" title="Pentazane (page does not exist)">N<sub>5</sub>H<sub>7</sub></a></li> <li><a href="/w/index.php?title=Hexazane&action=edit&redlink=1" class="new" title="Hexazane (page does not exist)">N<sub>6</sub>H<sub>8</sub></a></li> <li><a href="/w/index.php?title=Heptazane&action=edit&redlink=1" class="new" title="Heptazane (page does not exist)">N<sub>7</sub>H<sub>9</sub></a></li> <li><a href="/w/index.php?title=Octazane&action=edit&redlink=1" class="new" title="Octazane (page does not exist)">N<sub>8</sub>H<sub>10</sub></a></li> <li><a href="/w/index.php?title=Nonazane&action=edit&redlink=1" class="new" title="Nonazane (page does not exist)">N<sub>9</sub>H<sub>11</sub></a></li> <li><a href="/w/index.php?title=Decazane&action=edit&redlink=1" class="new" title="Decazane (page does not exist)">N<sub>10</sub>H<sub>12</sub></a></li> <li><a href="/wiki/Azane" title="Azane">more...</a></li></ul> </div></td></tr></tbody></table><div> </div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th id="Azenes23" scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Azo_compound" title="Azo compound">Azenes</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Diazene" class="mw-redirect" title="Diazene">N<sub>2</sub>H<sub>2</sub></a></li> <li><a href="/wiki/Triazene" title="Triazene">N<sub>3</sub>H<sub>3</sub></a></li> <li><a href="/wiki/Tetrazene" title="Tetrazene">N<sub>4</sub>H<sub>4</sub></a></li></ul> </div></td></tr></tbody></table><div> </div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th id="Phosphanes14" scope="row" class="navbox-group" style="width:1%"><a href="/w/index.php?title=Phosphanes&action=edit&redlink=1" class="new" title="Phosphanes (page does not exist)">Phosphanes</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Phosphine" title="Phosphine">PH<sub>3</sub></a></li> <li><a href="/wiki/Diphosphane" title="Diphosphane">P<sub>2</sub>H<sub>4</sub></a></li> <li><a href="/wiki/Triphosphane" title="Triphosphane">P<sub>3</sub>H<sub>5</sub></a></li> <li><a href="/w/index.php?title=Tetraphosphane&action=edit&redlink=1" class="new" title="Tetraphosphane (page does not exist)">P<sub>4</sub>H<sub>6</sub></a></li> <li><a href="/w/index.php?title=Pentaphosphane&action=edit&redlink=1" class="new" title="Pentaphosphane (page does not exist)">P<sub>5</sub>H<sub>7</sub></a></li> <li><a href="/w/index.php?title=Hexaphosphane&action=edit&redlink=1" class="new" title="Hexaphosphane (page does not exist)">P<sub>6</sub>H<sub>8</sub></a></li> <li><a href="/w/index.php?title=Heptaphosphane&action=edit&redlink=1" class="new" title="Heptaphosphane (page does not exist)">P<sub>7</sub>H<sub>9</sub></a></li> <li><a href="/w/index.php?title=Octaphosphane&action=edit&redlink=1" class="new" title="Octaphosphane (page does not exist)">P<sub>8</sub>H<sub>10</sub></a></li> <li><a href="/w/index.php?title=Nonaphosphane&action=edit&redlink=1" class="new" title="Nonaphosphane (page does not exist)">P<sub>9</sub>H<sub>11</sub></a></li> <li><a href="/w/index.php?title=Decaphosphane&action=edit&redlink=1" class="new" title="Decaphosphane (page does not exist)">P<sub>10</sub>H<sub>12</sub></a></li> <li><a href="/w/index.php?title=Phosphanes&action=edit&redlink=1" class="new" title="Phosphanes (page does not exist)">more...</a></li></ul> </div></td></tr></tbody></table><div> </div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th id="Phosphenes27" scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Diphosphenes" title="Diphosphenes">Phosphenes</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Diphosphene" title="Diphosphene">P<sub>2</sub>H<sub>2</sub></a></li> <li><a href="/w/index.php?title=Triphosphene&action=edit&redlink=1" class="new" title="Triphosphene (page does not exist)">P<sub>3</sub>H<sub>3</sub></a></li> <li><a href="/w/index.php?title=Tetraphosphene&action=edit&redlink=1" class="new" title="Tetraphosphene (page does not exist)">P<sub>4</sub>H<sub>4</sub></a></li></ul> </div></td></tr></tbody></table><div> </div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th id="Arsanes11" scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Arsane" class="mw-redirect" title="Arsane">Arsanes</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Arsine" title="Arsine">AsH<sub>3</sub></a></li> <li><a href="/wiki/Diarsine" class="mw-redirect" title="Diarsine">As<sub>2</sub>H<sub>4</sub></a></li></ul> </div></td></tr></tbody></table><div> </div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th id="Stibanes8" scope="row" class="navbox-group" style="width:1%">Stibanes</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Stibine" title="Stibine">SbH<sub>3</sub></a></li></ul> </div></td></tr></tbody></table><div> </div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th id="Bismuthanes11" scope="row" class="navbox-group" style="width:1%">Bismuthanes</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Bismuthine" title="Bismuthine">BiH<sub>3</sub></a></li></ul> </div></td></tr></tbody></table><div> </div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th id="Moscovanes10" scope="row" class="navbox-group" style="width:1%">Moscovanes</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><i><a href="/wiki/Moscovium" title="Moscovium">McH<sub>3</sub></a></i> (<i>predicted</i>)</li></ul> </div></td></tr></tbody></table><div> <ul><li><a href="/wiki/Hydrazoic_acid" title="Hydrazoic acid">HN<sub>3</sub></a></li> <li><a href="/wiki/Imidogen" title="Imidogen">NH</a></li> <li><a href="/wiki/Pentazole" title="Pentazole">HN<sub>5</sub></a></li> <li><a href="/wiki/Nitrogen_pentahydride" title="Nitrogen pentahydride">NH<sub>5</sub></a> <i>(hypothetical)</i></li></ul></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Hydrogen_chalcogenide" title="Hydrogen chalcogenide">Hydrogen <br />chalcogenides <br />(Group 16 hydrides)</a></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th id="Polyoxidanes35" scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Hydrogen_polyoxide" title="Hydrogen polyoxide">Polyoxidanes</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <li><a href="/wiki/Properties_of_water" title="Properties of water">H<sub>2</sub>O</a></li> <li><a href="/wiki/Hydrogen_peroxide" title="Hydrogen peroxide">H<sub>2</sub>O<sub>2</sub></a></li> <li><a href="/wiki/Trioxidane" title="Trioxidane">H<sub>2</sub>O<sub>3</sub></a></li> <li><a href="/wiki/Tetraoxidane" title="Tetraoxidane">H<sub>2</sub>O<sub>4</sub></a></li> <li><a href="/wiki/Pentaoxidane" title="Pentaoxidane">H<sub>2</sub>O<sub>5</sub></a></li> <li><a href="/wiki/Hydrogen_polyoxide" title="Hydrogen polyoxide">more...</a></li> </div></td></tr></tbody></table><div> </div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th id="Polysulfanes28" scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Polysulfane" title="Polysulfane">Polysulfanes</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Hydrogen_sulfide" title="Hydrogen sulfide">H<sub>2</sub>S</a></li> <li><a href="/wiki/Hydrogen_disulfide" title="Hydrogen disulfide">H<sub>2</sub>S<sub>2</sub></a></li> <li><a href="/wiki/Trisulfane" title="Trisulfane">H<sub>2</sub>S<sub>3</sub></a></li> <li><a href="/w/index.php?title=Hydrogen_tetrasulfide&action=edit&redlink=1" class="new" title="Hydrogen tetrasulfide (page does not exist)">H<sub>2</sub>S<sub>4</sub></a></li> <li><a href="/w/index.php?title=Hydrogen_pentasulfide&action=edit&redlink=1" class="new" title="Hydrogen pentasulfide (page does not exist)">H<sub>2</sub>S<sub>5</sub></a></li> <li><a href="/w/index.php?title=Hydrogen_hexasulfide&action=edit&redlink=1" class="new" title="Hydrogen hexasulfide (page does not exist)">H<sub>2</sub>S<sub>6</sub></a></li> <li><a href="/w/index.php?title=Hydrogen_heptasulfide&action=edit&redlink=1" class="new" title="Hydrogen heptasulfide (page does not exist)">H<sub>2</sub>S<sub>7</sub></a></li> <li><a href="/w/index.php?title=Hydrogen_octasulfide&action=edit&redlink=1" class="new" title="Hydrogen octasulfide (page does not exist)">H<sub>2</sub>S<sub>8</sub></a></li> <li><a href="/w/index.php?title=Hydrogen_nonasulfide&action=edit&redlink=1" class="new" title="Hydrogen nonasulfide (page does not exist)">H<sub>2</sub>S<sub>9</sub></a></li> <li><a href="/w/index.php?title=Hydrogen_decasulfide&action=edit&redlink=1" class="new" title="Hydrogen decasulfide (page does not exist)">H<sub>2</sub>S<sub>10</sub></a></li> <li><a href="/wiki/Polysulfane" title="Polysulfane">more...</a></li></ul> </div></td></tr></tbody></table><div> </div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th id="Selanes11" scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Selanes" class="mw-redirect" title="Selanes">Selanes</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Hydrogen_selenide" title="Hydrogen selenide">H<sub>2</sub>Se</a></li> <li><a href="/wiki/Hydrogen_diselenide" title="Hydrogen diselenide">H<sub>2</sub>Se<sub>2</sub></a></li></ul> </div></td></tr></tbody></table><div> </div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th id="Tellanes8" scope="row" class="navbox-group" style="width:1%">Tellanes</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Hydrogen_telluride" title="Hydrogen telluride">H<sub>2</sub>Te</a></li> <li><a href="/wiki/Hydrogen_ditelluride" title="Hydrogen ditelluride">H<sub>2</sub>Te<sub>2</sub></a></li></ul> </div></td></tr></tbody></table><div> </div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th id="Polanes7" scope="row" class="navbox-group" style="width:1%">Polanes</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Polonium_hydride" title="Polonium hydride">PoH<sub>2</sub></a></li></ul> </div></td></tr></tbody></table><div> </div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th id="Livermoranes12" scope="row" class="navbox-group" style="width:1%">Livermoranes</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><i><a href="/wiki/Livermorium" title="Livermorium">LvH<sub>2</sub></a></i> (<i>predicted</i>)</li></ul> </div></td></tr></tbody></table><div> <ul><li><a href="/wiki/Hydroxyl_radical" title="Hydroxyl radical">HO</a></li> <li><a href="/wiki/Hydroperoxyl" title="Hydroperoxyl">HO<sub>2</sub></a></li> <li><a href="/wiki/Hydrogen_ozonide" title="Hydrogen ozonide">HO<sub>3</sub></a></li> <li><a href="/w/index.php?title=Oxywater&action=edit&redlink=1" class="new" title="Oxywater (page does not exist)">H<sub>2</sub>O<sup>+</sup>–O<sup>–</sup></a> <i>(hypothetical)</i></li> <li><a href="/wiki/Sulfanyl" title="Sulfanyl">HS</a></li> <li><a href="/wiki/Semiheavy_water" title="Semiheavy water">HDO</a></li> <li><a href="/wiki/Heavy_water" title="Heavy water">D<sub>2</sub>O</a></li> <li><a href="/wiki/Tritiated_water" title="Tritiated water">T<sub>2</sub>O</a></li></ul></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Hydrogen_halide" title="Hydrogen halide">Hydrogen halides <br />(Group 17 hydrides)</a></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <li><a href="/wiki/Hydrogen_fluoride" title="Hydrogen fluoride">HF</a></li> <li><a href="/wiki/Hydrogen_chloride" title="Hydrogen chloride">HCl</a></li> <li><a href="/wiki/Hydrogen_bromide" title="Hydrogen bromide">HBr</a></li> <li><a href="/wiki/Hydrogen_iodide" title="Hydrogen iodide">HI</a></li> <li><a href="/wiki/Hydrogen_astatide" title="Hydrogen astatide">HAt</a></li> <li><i><a href="/wiki/Tennessine" title="Tennessine">HTs</a></i> (<i>predicted</i>)</li> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Transition_metal_hydrides" class="mw-redirect" title="Transition metal hydrides">Transition <br />metal hydrides</a></th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Scandium_hydride" title="Scandium hydride">ScH<sub>2</sub></a></li> <li><a href="/wiki/Yttrium_hydride" title="Yttrium hydride">YH<sub>2</sub></a></li> <li><a href="/w/index.php?title=Yttrium_trihydride&action=edit&redlink=1" class="new" title="Yttrium trihydride (page does not exist)">YH<sub>3</sub></a></li> <li><a href="/w/index.php?title=Yttrium_hexahydride&action=edit&redlink=1" class="new" title="Yttrium hexahydride (page does not exist)">YH<sub>6</sub></a></li> <li><a href="/w/index.php?title=Yttrium_nonahydride&action=edit&redlink=1" class="new" title="Yttrium nonahydride (page does not exist)">YH<sub>9</sub></a></li> <li><a href="/w/index.php?title=Lutetium_dihydride&action=edit&redlink=1" class="new" title="Lutetium dihydride (page does not exist)">LuH<sub>2</sub></a></li> <li><a href="/w/index.php?title=Lutetium_trihydride&action=edit&redlink=1" class="new" title="Lutetium trihydride (page does not exist)">LuH<sub>3</sub></a></li> <li><a href="/wiki/Titanium_hydride" title="Titanium hydride">TiH<sub>2</sub></a></li> <li><a href="/wiki/Titanium(IV)_hydride" title="Titanium(IV) hydride">TiH<sub>4</sub></a></li> <li><a href="/wiki/Zirconium(II)_hydride" title="Zirconium(II) hydride">ZrH<sub>2</sub></a></li> <li><a href="/wiki/Zirconium_hydride" title="Zirconium hydride">ZrH<sub>4</sub></a></li> <li><a href="/w/index.php?title=Hafnium(II)_hydride&action=edit&redlink=1" class="new" title="Hafnium(II) hydride (page does not exist)">HfH<sub>2</sub></a></li> <li><a href="/w/index.php?title=Hafnium_hydride&action=edit&redlink=1" class="new" title="Hafnium hydride (page does not exist)">HfH<sub>4</sub></a></li> <li><a href="/w/index.php?title=Vanadium(I)_hydride&action=edit&redlink=1" class="new" title="Vanadium(I) hydride (page does not exist)">VH</a></li> <li><a href="/w/index.php?title=Vanadium(II)_hydride&action=edit&redlink=1" class="new" title="Vanadium(II) hydride (page does not exist)">VH<sub>2</sub></a></li> <li><a href="/w/index.php?title=Niobium_monohydride&action=edit&redlink=1" class="new" title="Niobium monohydride (page does not exist)">NbH</a></li> <li><a href="/w/index.php?title=Niobium_dihydride&action=edit&redlink=1" class="new" title="Niobium dihydride (page does not exist)">NbH<sub>2</sub></a></li> <li><a href="/w/index.php?title=Tantalum_monohydride&action=edit&redlink=1" class="new" title="Tantalum monohydride (page does not exist)">TaH</a></li> <li><a href="/w/index.php?title=Tantalum_dihydride&action=edit&redlink=1" class="new" title="Tantalum dihydride (page does not exist)">TaH<sub>2</sub></a></li> <li><a href="/wiki/Chromium(I)_hydride" title="Chromium(I) hydride">CrH</a></li> <li><a href="/wiki/Chromium(II)_hydride" title="Chromium(II) hydride">CrH<sub>2</sub></a></li> <li><a href="/wiki/Chromium_hydride" title="Chromium hydride">CrH<sub>x</sub></a></li> <li><a href="/wiki/Iron(I)_hydride" title="Iron(I) hydride">FeH</a></li> <li><a href="/wiki/Iron(II)_hydride" title="Iron(II) hydride">FeH<sub>2</sub></a></li> <li><a href="/wiki/Iron_pentahydride" title="Iron pentahydride">FeH<sub>5</sub></a></li> <li><a href="/wiki/Cobalt(II)_hydride" title="Cobalt(II) hydride">CoH<sub>2</sub></a></li> <li><a href="/w/index.php?title=Rhodium_hydride&action=edit&redlink=1" class="new" title="Rhodium hydride (page does not exist)">RhH<sub>2</sub></a></li> <li><a href="/wiki/Iridium_trihydride" title="Iridium trihydride">IrH<sub>3</sub></a></li> <li><a href="/wiki/Nickel_hydride" title="Nickel hydride">NiH</a></li> <li><a class="mw-selflink selflink">PdH<sub><i>x</i></sub> (<i>x</i> < 1)</a></li> <li><a href="/w/index.php?title=Platinum_hydride&action=edit&redlink=1" class="new" title="Platinum hydride (page does not exist)">PtH<sub><i>x</i></sub> (<i>x</i>< 1) </a></li> <li><i><a href="/wiki/Darmstadtium" title="Darmstadtium">DsH<sub>2</sub></a></i> (<i>predicted</i>)</li> <li><a href="/wiki/Copper_hydride" title="Copper hydride">CuH</a></li> <li><i><a href="/wiki/Roentgenium" title="Roentgenium">RgH</a></i> (<i>predicted</i>)</li> <li><a href="/wiki/Zinc_hydride" title="Zinc hydride">ZnH<sub>2</sub></a></li> <li><a href="/wiki/Cadmium_hydride" title="Cadmium hydride">CdH<sub>2</sub></a></li> <li><a href="/wiki/Mercury(I)_hydride" title="Mercury(I) hydride">HgH</a></li> <li><a href="/wiki/Mercury(I)_hydride" title="Mercury(I) hydride">Hg<sub>2</sub>H<sub>2</sub></a></li> <li><a href="/wiki/Mercury(II)_hydride" title="Mercury(II) hydride">HgH<sub>2</sub></a></li> <li><i><a href="/wiki/Copernicium" title="Copernicium">CnH<sub>2</sub></a></i> (<i>predicted</i>)</li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/w/index.php?title=Lanthanide_hydrides&action=edit&redlink=1" class="new" title="Lanthanide hydrides (page does not exist)">Lanthanide hydrides</a></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/w/index.php?title=Lanthanum_dihydride&action=edit&redlink=1" class="new" title="Lanthanum dihydride (page does not exist)">LaH<sub>2</sub></a></li> <li><a href="/w/index.php?title=Lanthanum_trihydride&action=edit&redlink=1" class="new" title="Lanthanum trihydride (page does not exist)">LaH<sub>3</sub></a></li> <li><a href="/wiki/Lanthanum_decahydride" title="Lanthanum decahydride">LaH<sub>10</sub></a></li> <li><a href="/w/index.php?title=Cerium_dihydride&action=edit&redlink=1" class="new" title="Cerium dihydride (page does not exist)">CeH<sub>2</sub></a></li> <li><a href="/w/index.php?title=Cerium_trihydride&action=edit&redlink=1" class="new" title="Cerium trihydride (page does not exist)">CeH<sub>3</sub></a></li> <li><a href="/w/index.php?title=Praseodymium_dihydride&action=edit&redlink=1" class="new" title="Praseodymium dihydride (page does not exist)">PrH<sub>2</sub></a></li> <li><a href="/w/index.php?title=Praseodymium_hydride&action=edit&redlink=1" class="new" title="Praseodymium hydride (page does not exist)">PrH<sub>3</sub></a></li> <li><a href="/wiki/Neodymium(II)_hydride" title="Neodymium(II) hydride">NdH<sub>2</sub></a></li> <li><a href="/wiki/Neodymium(III)_hydride" title="Neodymium(III) hydride">NdH<sub>3</sub></a></li> <li><a href="/w/index.php?title=Samarium_dihydride&action=edit&redlink=1" class="new" title="Samarium dihydride (page does not exist)">SmH<sub>2</sub></a></li> <li><a href="/w/index.php?title=Samarium_trihydride&action=edit&redlink=1" class="new" title="Samarium trihydride (page does not exist)">SmH<sub>3</sub></a></li> <li><a href="/wiki/Europium_hydride" title="Europium hydride">EuH<sub>2</sub></a></li> <li><a href="/w/index.php?title=Gadolinium_dihydride&action=edit&redlink=1" class="new" title="Gadolinium dihydride (page does not exist)">GdH<sub>2</sub></a></li> <li><a href="/w/index.php?title=Gadolinium_trihydride&action=edit&redlink=1" class="new" title="Gadolinium trihydride (page does not exist)">GdH<sub>3</sub></a></li> <li><a href="/w/index.php?title=Terbium_dihydride&action=edit&redlink=1" class="new" title="Terbium dihydride (page does not exist)">TbH<sub>2</sub></a></li> <li><a href="/w/index.php?title=Terbium_trihydride&action=edit&redlink=1" class="new" title="Terbium trihydride (page does not exist)">TbH<sub>3</sub></a></li> <li><a href="/w/index.php?title=Dysprosium_dihydride&action=edit&redlink=1" class="new" title="Dysprosium dihydride (page does not exist)">DyH<sub>2</sub></a></li> <li><a href="/w/index.php?title=Dysprosium_trihydride&action=edit&redlink=1" class="new" title="Dysprosium trihydride (page does not exist)">DyH<sub>3</sub></a></li> <li><a href="/w/index.php?title=Holmium_dihydride&action=edit&redlink=1" class="new" title="Holmium dihydride (page does not exist)">HoH<sub>2</sub></a></li> <li><a href="/w/index.php?title=Holmium_trihydride&action=edit&redlink=1" class="new" title="Holmium trihydride (page does not exist)">HoH<sub>3</sub></a></li> <li><a href="/w/index.php?title=Erbium_dihydride&action=edit&redlink=1" class="new" title="Erbium dihydride (page does not exist)">ErH<sub>2</sub></a></li> <li><a href="/w/index.php?title=Erbium_trihydride&action=edit&redlink=1" class="new" title="Erbium trihydride (page does not exist)">ErH<sub>3</sub></a></li> <li><a href="/w/index.php?title=Thulium_dihydride&action=edit&redlink=1" class="new" title="Thulium dihydride (page does not exist)">TmH<sub>2</sub></a></li> <li><a href="/w/index.php?title=Thulium_trihydride&action=edit&redlink=1" class="new" title="Thulium trihydride (page does not exist)">TmH<sub>3</sub></a></li> <li><a href="/wiki/Ytterbium(II)_hydride" title="Ytterbium(II) hydride">YbH<sub>2</sub></a></li> <li><a href="/w/index.php?title=Lutetium_dihydride&action=edit&redlink=1" class="new" title="Lutetium dihydride (page does not exist)">LuH<sub>2</sub></a></li> <li><a href="/w/index.php?title=Lutetium_trihydride&action=edit&redlink=1" class="new" title="Lutetium trihydride (page does not exist)">LuH<sub>3</sub></a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/w/index.php?title=Actinide_hydrides&action=edit&redlink=1" class="new" title="Actinide hydrides (page does not exist)">Actinide hydrides</a></th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/w/index.php?title=Actinium_dihydride&action=edit&redlink=1" class="new" title="Actinium dihydride (page does not exist)">AcH<sub>2</sub></a></li> <li><a href="/w/index.php?title=Thorium_hydride&action=edit&redlink=1" class="new" title="Thorium hydride (page does not exist)">ThH<sub>2</sub></a></li> <li><a href="/w/index.php?title=Thorium(IV)_hydride&action=edit&redlink=1" class="new" title="Thorium(IV) hydride (page does not exist)">ThH<sub>4</sub></a></li> <li>Th<sub>4</sub>H<sub>15</sub></li> <li><a href="/wiki/Protactinium_trihydride" title="Protactinium trihydride">PaH<sub>3</sub></a></li> <li><a href="/wiki/Uranium(III)_hydride" title="Uranium(III) hydride">UH<sub>3</sub></a></li> <li><a href="/wiki/Uranium(IV)_hydride" title="Uranium(IV) hydride">UH<sub>4</sub></a></li> <li><a href="/w/index.php?title=Neptunium_dihydride&action=edit&redlink=1" class="new" title="Neptunium dihydride (page does not exist)">NpH<sub>2</sub></a></li> <li><a href="/w/index.php?title=Neptunium_trihydride&action=edit&redlink=1" class="new" title="Neptunium trihydride (page does not exist)">NpH<sub>3</sub></a></li> <li><a href="/wiki/Plutonium_hydride" title="Plutonium hydride">PuH<sub>2</sub></a></li> <li><a href="/wiki/Plutonium_hydride" title="Plutonium hydride">PuH<sub>3</sub></a></li> <li><a href="/w/index.php?title=Americium_dihydride&action=edit&redlink=1" class="new" title="Americium dihydride (page does not exist)">AmH<sub>2</sub></a></li> <li><a href="/wiki/Americium_trihydride" title="Americium trihydride">AmH<sub>3</sub></a></li> <li><a href="/w/index.php?title=Curium_hydride&action=edit&redlink=1" class="new" title="Curium hydride (page does not exist)">CmH<sub>2</sub></a></li> <li><a href="/w/index.php?title=Berkelium_dihydride&action=edit&redlink=1" class="new" title="Berkelium dihydride (page does not exist)">BkH<sub>2</sub></a></li> <li><a href="/w/index.php?title=Berkelium_trihydride&action=edit&redlink=1" class="new" title="Berkelium trihydride (page does not exist)">BkH<sub>3</sub></a></li> <li><a href="/w/index.php?title=Californium_dihydride&action=edit&redlink=1" class="new" title="Californium dihydride (page does not exist)">CfH<sub>2</sub></a></li> <li><a href="/w/index.php?title=Californium_trihydride&action=edit&redlink=1" class="new" title="Californium trihydride (page does not exist)">CfH<sub>3</sub></a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Exotic_atoms" class="mw-redirect" title="Exotic atoms">Exotic matter hydrides</a></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Positronium_hydride" title="Positronium hydride">PsH</a></li></ul> </div></td></tr></tbody></table></div>    </div><noscript><img src="https://auth.wikimedia.org/loginwiki/wiki/Special:CentralAutoLogin/start?useformat=desktop&type=1x1&usesul3=1" alt="" width="1" height="1" style="border: none; position: absolute;"></noscript> <div class="printfooter" data-nosnippet="">Retrieved from "<a dir="ltr" href="https://en.wikipedia.org/w/index.php?title=Palladium_hydride&oldid=1280345806">https://en.wikipedia.org/w/index.php?title=Palladium_hydride&oldid=1280345806</a>"</div></div> <div id="catlinks" class="catlinks" data-mw="interface"><div id="mw-normal-catlinks" class="mw-normal-catlinks"><a 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