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cathodes of solid oxide fuel</title> <meta name="description" content="Search results for: composite cathodes of solid oxide fuel"> <meta name="keywords" content="composite cathodes of solid oxide fuel"> <meta name="viewport" content="width=device-width, initial-scale=1, minimum-scale=1, maximum-scale=1, user-scalable=no"> <meta charset="utf-8"> <link href="https://cdn.waset.org/favicon.ico" type="image/x-icon" rel="shortcut icon"> <link href="https://cdn.waset.org/static/plugins/bootstrap-4.2.1/css/bootstrap.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/plugins/fontawesome/css/all.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/css/site.css?v=150220211555" rel="stylesheet"> </head> <body> <header> <div class="container"> <nav class="navbar navbar-expand-lg navbar-light"> <a class="navbar-brand" href="https://waset.org"> <img src="https://cdn.waset.org/static/images/wasetc.png" alt="Open Science Research Excellence" title="Open Science Research 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method="get" action="https://publications.waset.org/abstracts/search"> <div id="custom-search-input"> <div class="input-group"> <i class="fas fa-search"></i> <input type="text" class="search-query" name="q" placeholder="Author, Title, Abstract, Keywords" value="composite cathodes of solid oxide fuel"> <input type="submit" class="btn_search" value="Search"> </div> </div> </form> </div> </div> <div class="row mt-3"> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Commenced</strong> in January 2007</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Frequency:</strong> Monthly</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Edition:</strong> International</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Paper Count:</strong> 6650</div> </div> </div> </div> <h1 class="mt-3 mb-3 text-center" style="font-size:1.6rem;">Search results for: composite cathodes of solid oxide fuel</h1> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">6650</span> Synthesis of La0.8Sr0.05Ca0.15Fe0.8Co0.2O3-δ -Ce0.9Gd0.1O1.95 Composite Cathode Material for Solid Oxide Fuel Cell with Lanthanum and Cerium Recycled from Wasted Glass Polishing Powder</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Jun-Lun%20Jiang">Jun-Lun Jiang</a>, <a href="https://publications.waset.org/abstracts/search?q=Bing-Sheng%20Yu"> Bing-Sheng Yu</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Processing of flat-panel displays generates huge amount of wasted glass polishing powder, with high concentration of cerium and other elements such as lanthanum. According to the current statistics, consumption of polishing powder was approximately ten thousand tons per year in the world. Nevertheless, wasted polishing powder was usually buried or burned. If the lanthanum and cerium compounds in the wasted polishing powder could be recycled, that will greatly reduce enterprise cost and implement waste circulation. Cathodes of SOFCs are the principal consisting of rare earth elements such as lanthanum and cerium. In this study, we recycled the lanthanum and cerium from wasted glass polishing powder by acid-solution method, and synthesized La0.8Sr0.05Ca0.15Fe0.8Co0.8O3-δ and Gd0.1Ce0.9O2 (LSCCF-GDC) composite cathode material for SOFCs by glycinenitrate combustion (GNP) method. The results show that the recovery rates of lanthanum and cerium could accomplish up to 80% and 100% under 10N nitric acid solution within one hour. Comparing with the XRD data of the commercial LSCCF-GDC powder and the LSCCF-GDC product synthesized with chemicals, we find that the LSCCF-GDC was successfully synthesized with the recycled La & Ce solution by GNP method. The effect of adding ammonia to the product was also discussed, the grain size is finer and recovery rate of the product is higher without the addition of ammonia to the solution. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=glass%20polishing%20powder" title="glass polishing powder">glass polishing powder</a>, <a href="https://publications.waset.org/abstracts/search?q=acid%20solution" title=" acid solution"> acid solution</a>, <a href="https://publications.waset.org/abstracts/search?q=recycling" title=" recycling"> recycling</a>, <a href="https://publications.waset.org/abstracts/search?q=composite%20cathodes%20of%20solid%20oxide%20fuel" title=" composite cathodes of solid oxide fuel"> composite cathodes of solid oxide fuel</a>, <a href="https://publications.waset.org/abstracts/search?q=cell%20%28SOFC%29" title=" cell (SOFC)"> cell (SOFC)</a>, <a href="https://publications.waset.org/abstracts/search?q=perovskite" title=" perovskite"> perovskite</a>, <a href="https://publications.waset.org/abstracts/search?q=glycine-nitrate%20combustion%28GNP%29%20method" title=" glycine-nitrate combustion(GNP) method"> glycine-nitrate combustion(GNP) method</a> </p> <a href="https://publications.waset.org/abstracts/44834/synthesis-of-la08sr005ca015fe08co02o3-d-ce09gd01o195-composite-cathode-material-for-solid-oxide-fuel-cell-with-lanthanum-and-cerium-recycled-from-wasted-glass-polishing-powder" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/44834.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">272</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">6649</span> Preparation, Characterization and Ionic Conductivity of (1‒x) (CdI2‒Ag2CrO4)‒(x) Al2O3 Composite Solid Electrolytes</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Rafiuddin">Rafiuddin</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Composite solid electrolyte of the salt and oxide type is an effective approach to improve the ionic conductivity in low and intermediate temperature regions. The conductivity enhancement in the composites occurs via interfaces. Because of their high ionic conduction, composite electrolytes have wide applications in different electrochemical devices such as solid-state batteries, solid oxide fuel cells, and electrochemical cells. In this work, a series of novel (1‒x) (CdI2‒Ag2CrO4)‒xAl2O3 composite solid electrolytes has been synthesized. The prepared materials were characterized by X‒ray diffraction, differential thermal analysis, and AC impedance spectroscopy. The impedance spectra show single semicircle representing the simultaneous contribution of grain and grain boundary. The conductivity increased with the increase of Al2O3 content and shows the maximum conductivity (σ= 0.0012 S cm‒1) for 30% of Al2O3 content at 30 ℃. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=composite%20solid%20electrolyte" title="composite solid electrolyte">composite solid electrolyte</a>, <a href="https://publications.waset.org/abstracts/search?q=X-ray%20diffraction" title=" X-ray diffraction"> X-ray diffraction</a>, <a href="https://publications.waset.org/abstracts/search?q=Impedance%20spectroscopy" title=" Impedance spectroscopy"> Impedance spectroscopy</a>, <a href="https://publications.waset.org/abstracts/search?q=ionic%20conductivity" title=" ionic conductivity"> ionic conductivity</a> </p> <a href="https://publications.waset.org/abstracts/39782/preparation-characterization-and-ionic-conductivity-of-1x-cdi2ag2cro4x-al2o3-composite-solid-electrolytes" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/39782.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">405</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">6648</span> Catalytic Study of Natural Gas Based Solid Oxide Fuel Cell</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Nasir%20Iqbal">Nasir Iqbal</a>, <a href="https://publications.waset.org/abstracts/search?q=Khurram%20Siraj"> Khurram Siraj</a>, <a href="https://publications.waset.org/abstracts/search?q=Rizwan%20Raza"> Rizwan Raza</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Solid oxide fuel cell (SOFC) is the promising technology now days. SOFC can be operated with different types of fuels available. In this work catalytic anode is prepared with metal oxides i.e. Li, Ni, Zn and Sn and tested for catalytic activity with natural gas as a fuel. The operating temperature range is 170-750°C as observed with the help of TGA. Electrical conductivity and fuel cell performance has been observed for four different samples with varying composition of Sn and Zn. It is concluded that the sample having greater concentration of Zn shows better conductivity and power density results. All the results are promising and verified with different characterizations. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=catalytic%20activity" title="catalytic activity">catalytic activity</a>, <a href="https://publications.waset.org/abstracts/search?q=solid%20oxide%20fuel%20cell" title=" solid oxide fuel cell"> solid oxide fuel cell</a>, <a href="https://publications.waset.org/abstracts/search?q=energy%20material" title=" energy material"> energy material</a>, <a href="https://publications.waset.org/abstracts/search?q=natural%20gas" title=" natural gas"> natural gas</a> </p> <a href="https://publications.waset.org/abstracts/172581/catalytic-study-of-natural-gas-based-solid-oxide-fuel-cell" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/172581.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">76</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">6647</span> Indium Oxide/Scandium Doping Yttria-Stabilized Zirconia Composite Films as Electrolytes for Solid Oxide Fuel Cells</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Yong-Jie%20Lin">Yong-Jie Lin</a>, <a href="https://publications.waset.org/abstracts/search?q=Yi-Feng%20Lin"> Yi-Feng Lin </a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this study, scandium-doped yttria-stabilized zirconia (ScYSZ) and In2O3 nanoparticles (NPs) with cubic crystalline structures were successfully prepared using a facile hydrothermal process. ScYSZ films were prepared by the pressing of ScYSZ NPs and were further used for the electrolyte of solid oxide fuel cells (SOFCs). To increase the ionic conductivity of the ScYSZ electrolyte, different amounts of In2O3 NPs [0 wt% (X(In2O3)=0), 0.21 wt% (X(In2O3)=0.001) and 1.13 wt% (X(In2O3)=0.005)] were doped in the ScYSZ films to increase their oxygen vacancy. The result shows In2O3 NP/ScYSZ films with 1.13 wt% (X(In2O3 )=0.005) In2O3 NPs doping are with largest ionic conductivity of 0.057Ω-1 cm-1 at 900oC, which is 1.6 and 1.8 times higher than YSZ and In2O3 NP/ScYSZ films with 0.21 wt% (X(In2O3)=0.001) In2O3 NPs doping, respectively. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=indium%20oxide%2Fscandium%20doping%20Yttria-stabilized%20zirconia" title="indium oxide/scandium doping Yttria-stabilized zirconia">indium oxide/scandium doping Yttria-stabilized zirconia</a>, <a href="https://publications.waset.org/abstracts/search?q=solid%20oxide%20fuel%20cells" title=" solid oxide fuel cells"> solid oxide fuel cells</a>, <a href="https://publications.waset.org/abstracts/search?q=scandium-doped%20yttria-stabilized%20zirconia" title=" scandium-doped yttria-stabilized zirconia"> scandium-doped yttria-stabilized zirconia</a>, <a href="https://publications.waset.org/abstracts/search?q=indium%20oxide" title=" indium oxide"> indium oxide</a> </p> <a href="https://publications.waset.org/abstracts/21538/indium-oxidescandium-doping-yttria-stabilized-zirconia-composite-films-as-electrolytes-for-solid-oxide-fuel-cells" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/21538.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">464</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">6646</span> Integration of Multi Effect Desalination with Solid Oxide Fuel Cell/Gas Turbine Power Cycle</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mousa%20Meratizaman">Mousa Meratizaman</a>, <a href="https://publications.waset.org/abstracts/search?q=Sina%20Monadizadeh"> Sina Monadizadeh</a>, <a href="https://publications.waset.org/abstracts/search?q=Majid%20Amidpour"> Majid Amidpour</a> </p> <p class="card-text"><strong>Abstract:</strong></p> One of the most favorable thermal desalination methods used widely today is Multi Effect Desalination. High energy consumption in this method causes coupling it with high temperature power cycle like gas turbine. This combination leads to higher energy efficiency. One of the high temperature power systems which have cogeneration opportunities is Solid Oxide Fuel Cell / Gas Turbine. Integration of Multi Effect Desalination with Solid Oxide Fuel Cell /Gas Turbine power cycle in a range of 300-1000 kW is considered in this article. The exhausted heat of Solid Oxide Fuel Cell /Gas Turbine power cycle is used in Heat Recovery Steam Generator to produce needed motive steam for Desalination unit. Thermodynamic simulation and parametric studies of proposed system are carried out to investigate the system performance. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=solid%20oxide%20fuel%20cell" title="solid oxide fuel cell">solid oxide fuel cell</a>, <a href="https://publications.waset.org/abstracts/search?q=thermodynamic%20simulation" title=" thermodynamic simulation"> thermodynamic simulation</a>, <a href="https://publications.waset.org/abstracts/search?q=multi%20effect%20desalination" title=" multi effect desalination"> multi effect desalination</a>, <a href="https://publications.waset.org/abstracts/search?q=gas%20turbine%20hybrid%20cycle" title=" gas turbine hybrid cycle"> gas turbine hybrid cycle</a> </p> <a href="https://publications.waset.org/abstracts/57216/integration-of-multi-effect-desalination-with-solid-oxide-fuel-cellgas-turbine-power-cycle" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/57216.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">379</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">6645</span> Optimal Sputtering Conditions for Nickel-Cermet Anodes in Intermediate Temperature Solid Oxide Fuel Cells</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Waqas%20Hassan%20Tanveer">Waqas Hassan Tanveer</a>, <a href="https://publications.waset.org/abstracts/search?q=Yoon%20Ho%20Lee"> Yoon Ho Lee</a>, <a href="https://publications.waset.org/abstracts/search?q=Taehyun%20Park"> Taehyun Park</a>, <a href="https://publications.waset.org/abstracts/search?q=Wonjong%20Yu"> Wonjong Yu</a>, <a href="https://publications.waset.org/abstracts/search?q=Yaegeun%20Lee"> Yaegeun Lee</a>, <a href="https://publications.waset.org/abstracts/search?q=Yusung%20Kim"> Yusung Kim</a>, <a href="https://publications.waset.org/abstracts/search?q=Suk%20Won%20Cha"> Suk Won Cha</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Nickel-Gadolinium Doped Ceria (Ni-GDC) cermet anodic thin films were prepared on Scandia Stabilized Zirconia (ScSZ) electrolyte supports by radio frequency (RF) sputtering, with a range of different sputtering powers (50 – 200W) and background Ar gas pressures (30 – 90mTorr). The effects of varying sputtering power and pressure on the properties of Ni-GDC films were studied using Focused Ion Beam (FIB), X-ray Photoelectron Spectroscopy (XPS), X-ray Diffraction (XRD), Energy Dispersive X-ray (EDX), and Atomic Force Microscopy (AFM) techniques. The Ni content was found to be always higher than the Ce content, at all sputtering conditions. This increased Ni content was attributed to significantly higher energy transfer efficiency of Ni ions as compared to Ce ions with Ar background sputtering gas. The solid oxide fuel cell configuration was completed by using lanthanum strontium manganite (LSM/YSZ) cathodes on the other side of ScSZ supports. Performance comparison of cells was done by Voltage-Current-Power (VIP) curves, while the resistances of various cell components were observed by nyquist plots. Initial results showed that anode films made by higher powered RF sputtering performed better than lower powered ones for a specific Ar pressure. Interestingly, however, anodes made at highest power and pressure, were not the ones that showed the maximum power output at an intermediate solid oxide fuel cell temperature of 800°C. Finally, an optimal sputtering condition was reported for high performance Ni-GDC anodes. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=intermediate%20temperature%20solid%20oxide%20fuel%20cells" title="intermediate temperature solid oxide fuel cells">intermediate temperature solid oxide fuel cells</a>, <a href="https://publications.waset.org/abstracts/search?q=nickel-cermet%20anodic%20thin%20films" title=" nickel-cermet anodic thin films"> nickel-cermet anodic thin films</a>, <a href="https://publications.waset.org/abstracts/search?q=nyquist%20plots" title=" nyquist plots"> nyquist plots</a>, <a href="https://publications.waset.org/abstracts/search?q=radio%20frequency%20sputtering" title=" radio frequency sputtering"> radio frequency sputtering</a> </p> <a href="https://publications.waset.org/abstracts/55624/optimal-sputtering-conditions-for-nickel-cermet-anodes-in-intermediate-temperature-solid-oxide-fuel-cells" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/55624.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">240</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">6644</span> Energy and Exergy Analysis of Anode-Supported and Electrolyte–Supported Solid Oxide Fuel Cells Gas Turbine Power System</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Abdulrazzak%20Akroot">Abdulrazzak Akroot</a>, <a href="https://publications.waset.org/abstracts/search?q=Lutfu%20Namli"> Lutfu Namli</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Solid oxide fuel cells (SOFCs) are one of the most promising technologies since they can produce electricity directly from fuel and generate a lot of waste heat that is generally used in the gas turbines to promote the general performance of the thermal power plant. In this study, the energy, and exergy analysis of a solid oxide fuel cell/gas turbine hybrid system was proceed in MATLAB to examine the performance characteristics of the hybrid system in two different configurations: anode-supported model and electrolyte-supported model. The obtained results indicate that if the fuel utilization factor reduces from 0.85 to 0.65, the overall efficiency decreases from 64.61 to 59.27% for the anode-supported model whereas it reduces from 58.3 to 56.4% for the electrolyte-supported model. Besides, the overall exergy reduces from 53.86 to 44.06% for the anode-supported model whereas it reduces from 39.96 to 33.94% for the electrolyte-supported model. Furthermore, increasing the air utilization factor has a negative impact on the electrical power output and the efficiencies of the overall system due to the reduction in the O₂ concentration at the cathode-electrolyte interface. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=solid%20oxide%20fuel%20cell" title="solid oxide fuel cell">solid oxide fuel cell</a>, <a href="https://publications.waset.org/abstracts/search?q=anode-supported%20model" title=" anode-supported model"> anode-supported model</a>, <a href="https://publications.waset.org/abstracts/search?q=electrolyte-supported%20model" title=" electrolyte-supported model"> electrolyte-supported model</a>, <a href="https://publications.waset.org/abstracts/search?q=energy%20analysis" title=" energy analysis"> energy analysis</a>, <a href="https://publications.waset.org/abstracts/search?q=exergy%20analysis" title=" exergy analysis"> exergy analysis</a> </p> <a href="https://publications.waset.org/abstracts/104800/energy-and-exergy-analysis-of-anode-supported-and-electrolyte-supported-solid-oxide-fuel-cells-gas-turbine-power-system" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/104800.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">152</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">6643</span> Parametric Analysis of Solid Oxide Fuel Cell Using Lattice Boltzmann Method</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Abir%20Yahya">Abir Yahya</a>, <a href="https://publications.waset.org/abstracts/search?q=Hacen%20Dhahri"> Hacen Dhahri</a>, <a href="https://publications.waset.org/abstracts/search?q=Khalifa%20Slimi"> Khalifa Slimi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The present paper deals with a numerical simulation of temperature field inside a solid oxide fuel cell (SOFC) components. The temperature distribution is investigated using a co-flow planar SOFC comprising the air and fuel channel and two-ceramic electrodes, anode and cathode, separated by a dense ceramic electrolyte. The Lattice Boltzmann method (LBM) is used for the numerical simulation of the physical problem. The effects of inlet temperature, anode thermal conductivity and current density on temperature distribution are discussed. It was found that temperature distribution is very sensitive to the inlet temperature and the current density. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=heat%20sources" title="heat sources">heat sources</a>, <a href="https://publications.waset.org/abstracts/search?q=Lattice%20Boltzmann%20method" title=" Lattice Boltzmann method"> Lattice Boltzmann method</a>, <a href="https://publications.waset.org/abstracts/search?q=solid%20oxide%20fuel%20cell" title=" solid oxide fuel cell"> solid oxide fuel cell</a>, <a href="https://publications.waset.org/abstracts/search?q=temperature" title=" temperature"> temperature</a> </p> <a href="https://publications.waset.org/abstracts/71281/parametric-analysis-of-solid-oxide-fuel-cell-using-lattice-boltzmann-method" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/71281.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">309</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">6642</span> Optimum Design for Cathode Microstructure of Solid Oxide Fuel Cell</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=M.%20Riazat">M. Riazat</a>, <a href="https://publications.waset.org/abstracts/search?q=H.%20Abdolvand"> H. Abdolvand</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20Baniassadi"> M. Baniassadi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this present work, 3D reconstruction of cathode of SOFC is developed with various volume fractions and porosity. Three Phase Boundary (TPB) of construction of such derived micro structures is calculated. The neural network is used to optimize the porosity and volume fraction of each phase to reach a structure with maximum TPB. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=fuel%20cell" title="fuel cell">fuel cell</a>, <a href="https://publications.waset.org/abstracts/search?q=solid%20oxide" title=" solid oxide"> solid oxide</a>, <a href="https://publications.waset.org/abstracts/search?q=TPB" title=" TPB"> TPB</a>, <a href="https://publications.waset.org/abstracts/search?q=3D%20reconstruction" title=" 3D reconstruction"> 3D reconstruction</a> </p> <a href="https://publications.waset.org/abstracts/20479/optimum-design-for-cathode-microstructure-of-solid-oxide-fuel-cell" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/20479.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">324</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">6641</span> Preparation and Conductivity Measurements of LSM/YSZ Composite Solid Oxide Electrolysis Cell Anode Materials</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Christian%20C.%20Vaso">Christian C. Vaso</a>, <a href="https://publications.waset.org/abstracts/search?q=Rinlee%20Butch%20M.%20Cervera"> Rinlee Butch M. Cervera</a> </p> <p class="card-text"><strong>Abstract:</strong></p> One of the most promising anode materials for solid oxide electrolysis cell (SOEC) application is the Sr-doped LaMnO<sub>3</sub> (LSM) which is known to have a high electronic conductivity but low ionic conductivity. To increase the ionic conductivity or diffusion of ions through the anode, Yttria-stabilized Zirconia (YSZ), which has good ionic conductivity, is proposed to be combined with LSM to create a composite electrode and to obtain a high mixed ionic and electronic conducting anode. In this study, composite of lanthanum strontium manganite and YSZ oxide, La<sub>0.8</sub>Sr<sub>0.2</sub>MnO<sub>3</sub>/Zr<sub>0.92</sub>Y<sub>0.08</sub>O<sub>2</sub> (LSM/YSZ), with different wt.% compositions of LSM and YSZ were synthesized using solid-state reaction. The obtained prepared composite samples of 60, 50, and 40 wt.% LSM with remaining wt.% of 40, 50, and 60, respectively for YSZ were fully characterized for its microstructure by using powder X-ray diffraction (XRD), Thermogravimetric analysis (TGA), Fourier transform infrared (FTIR), and Scanning electron microscope/Energy dispersive spectroscopy (SEM/EDS) analyses. Surface morphology of the samples via SEM analysis revealed a well-sintered and densified pure LSM, while a more porous composite sample of LSM/YSZ was obtained. Electrochemical impedance measurements at intermediate temperature range (500-700 °C) of the synthesized samples were also performed which revealed that the 50 wt.% LSM with 50 wt.% YSZ (L50Y50) sample showed the highest total conductivity of 8.27x10<sup>-1</sup> S/cm at 600 <sup>o</sup>C with 0.22 eV activation energy. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=ceramics" title="ceramics">ceramics</a>, <a href="https://publications.waset.org/abstracts/search?q=microstructure" title=" microstructure"> microstructure</a>, <a href="https://publications.waset.org/abstracts/search?q=fuel%20cells" title=" fuel cells"> fuel cells</a>, <a href="https://publications.waset.org/abstracts/search?q=electrochemical%20impedance%20spectroscopy" title=" electrochemical impedance spectroscopy"> electrochemical impedance spectroscopy</a> </p> <a href="https://publications.waset.org/abstracts/60719/preparation-and-conductivity-measurements-of-lsmysz-composite-solid-oxide-electrolysis-cell-anode-materials" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/60719.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">247</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">6640</span> Electrochemical Study of Prepared Cubic Fluorite Structured Titanium Doped Lanthanum Gallium Cerate Electrolyte for Low Temperature Solid Oxide Fuel Cell</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Rida%20Batool">Rida Batool</a>, <a href="https://publications.waset.org/abstracts/search?q=Faizah%20Altaf"> Faizah Altaf</a>, <a href="https://publications.waset.org/abstracts/search?q=Saba%20Nadeem"> Saba Nadeem</a>, <a href="https://publications.waset.org/abstracts/search?q=Afifa%20Aslam"> Afifa Aslam</a>, <a href="https://publications.waset.org/abstracts/search?q=Faisal%20Alamgir"> Faisal Alamgir</a>, <a href="https://publications.waset.org/abstracts/search?q=Ghazanfar%20Abbas"> Ghazanfar Abbas</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Today, the need of the hour is to find out alternative renewable energy resources in order to reduce the burden on fossil fuels and prevent alarming environmental degradation. Solid oxide fuel cell (SOFC) is considered a good alternative energy conversion device because it is environmentally benign and supplies energy on demand. The only drawback associated with SOFC is its high operating temperature. In order to reduce operating temperature, different types of composite material are prepared. In this work, titanium doped lanthanum gallium cerate (LGCT) composite is prepared through the co-precipitation method as electrolyte and examined for low temperature SOFCs (LTSOFCs). The structural properties are analyzed by X-Ray Diffractometry (XRD) and Fourier Transform Infrared (FTIR) Spectrometry. The surface properties are investigated by Scanning Electron Microscopy (SEM). The electrolyte LGCT has the formula LGCTO₃ because it showed two phases La.GaO and Ti.CeO₂. The average particle size is found to be (32 ± 0.9311) nm. The ionic conductivity is achieved to be 0.073S/cm at 650°C. Arrhenius plots are drawn to calculate activation energy and found 2.96 eV. The maximum power density and current density are achieved at 68.25mW/cm² and 357mA/cm², respectively, at 650°C with hydrogen. The prepared material shows excellent ionic conductivity at comparatively low temperature, that makes it a potentially good candidate for LTSOFCs. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=solid%20oxide%20fuel%20cell" title="solid oxide fuel cell">solid oxide fuel cell</a>, <a href="https://publications.waset.org/abstracts/search?q=LGCTO%E2%82%83" title=" LGCTO₃"> LGCTO₃</a>, <a href="https://publications.waset.org/abstracts/search?q=cerium%20composite%20oxide" title=" cerium composite oxide"> cerium composite oxide</a>, <a href="https://publications.waset.org/abstracts/search?q=ionic%20conductivity" title=" ionic conductivity"> ionic conductivity</a>, <a href="https://publications.waset.org/abstracts/search?q=low%20temperature%20electrolyte" title=" low temperature electrolyte"> low temperature electrolyte</a> </p> <a href="https://publications.waset.org/abstracts/152809/electrochemical-study-of-prepared-cubic-fluorite-structured-titanium-doped-lanthanum-gallium-cerate-electrolyte-for-low-temperature-solid-oxide-fuel-cell" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/152809.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">108</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">6639</span> A Comprehensive Safety Analysis for a Pressurized Water Reactor Fueled with Mixed-Oxide Fuel as an Accident Tolerant Fuel</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mohamed%20Y.%20M.%20Mohsen">Mohamed Y. M. Mohsen</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The viability of utilising mixed-oxide fuel (MOX) ((U₀.₉, rgPu₀.₁) O₂) as an accident-tolerant fuel (ATF) has been thoroughly investigated. MOX fuel provides the best example of a nuclear waste recycling process. The MCNPX 2.7 code was used to determine the main neutronic features, especially the radial power distribution, to identify the hot channel on which the thermal-hydraulic (TH) study was performed. Based on the computational fluid dynamics technique, the simulation of the rod-centered thermal-hydraulic subchannel model was implemented using COMSOL Multiphysics. TH analysis was utilised to determine the axially and radially distributed temperatures of the fuel and cladding materials, as well as the departure from the nucleate boiling ratio (DNBR) along the coolant channel. COMSOL Multiphysics can simulate reality by coupling multiphysics, such as coupling between heat transfer and solid mechanics. The main solid structure parameters, such as the von Mises stress, volumetric strain, and displacement, were simulated using this coupling. When the neutronic, TH, and solid structure performances of UO₂ and ((U₀.₉, rgPu₀.₁) O₂) were compared, the results showed considerable improvement and an increase in safety margins with the use of ((U₀.₉, rgPu₀.₁) O₂). <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=mixed-oxide" title="mixed-oxide">mixed-oxide</a>, <a href="https://publications.waset.org/abstracts/search?q=MCNPX" title=" MCNPX"> MCNPX</a>, <a href="https://publications.waset.org/abstracts/search?q=neutronic%20analysis" title=" neutronic analysis"> neutronic analysis</a>, <a href="https://publications.waset.org/abstracts/search?q=COMSOL-multiphysics" title=" COMSOL-multiphysics"> COMSOL-multiphysics</a>, <a href="https://publications.waset.org/abstracts/search?q=thermal-hydraulic" title=" thermal-hydraulic"> thermal-hydraulic</a>, <a href="https://publications.waset.org/abstracts/search?q=solid%20structure" title=" solid structure"> solid structure</a> </p> <a href="https://publications.waset.org/abstracts/154310/a-comprehensive-safety-analysis-for-a-pressurized-water-reactor-fueled-with-mixed-oxide-fuel-as-an-accident-tolerant-fuel" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/154310.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">106</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">6638</span> Influence of Substitution on Structure of Tin Lantanium Pyrochlore La₂₋ₓSrₓSn₂O₇₋δ(0 ≤ x ≤ 0.25) Solid-Oxide Fuel Cells</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Bounar%20Nedjemeddine">Bounar Nedjemeddine</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Materials with the pyrochlore lattice structure have attracted much recent attention due to their wide applications in ceramic thermal barrier coatings, high-permittivity dielectrics, and potential solid electrolytes in solid-oxide fuel cells. The work described in this paper is devoted to the synthesis and characterization of a pyrochlore structure based on lanthanum (La₂O₃) and tin (SnO₂) oxides of general formula La₂Sn₂O₇, substituted by Sr at the site La. Their structures were determined from X-ray powder diffraction using CELFER analysis. All the compositions present the space group Fd-3m. The substitution of La by Sr in the La₂Sn₂O₇ compound causes a variation of the cell parameters. The difference in charge between La³⁺ and Sr²⁺ and the difference in size cause the cell parameters to decrease from a=10.7165 A° to a=10.6848 A° for the substitution rates (x = 0.05, 0.1, 0.15 ...), which leads to a decrease in the volume of the mesh. For a substitution rate x = 0.25, there is an increase in the cell parameters (a=10.7035A°), which can be explained by a competitiveness of the size effect and the presence of a gap in the structure which go in the opposite direction. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=solid-oxide%20fuel%20cells" title="solid-oxide fuel cells">solid-oxide fuel cells</a>, <a href="https://publications.waset.org/abstracts/search?q=structure" title=" structure"> structure</a>, <a href="https://publications.waset.org/abstracts/search?q=pyrochlore" title=" pyrochlore"> pyrochlore</a>, <a href="https://publications.waset.org/abstracts/search?q=X-ray%20diffraction" title=" X-ray diffraction"> X-ray diffraction</a> </p> <a href="https://publications.waset.org/abstracts/102422/influence-of-substitution-on-structure-of-tin-lantanium-pyrochlore-la2srsn2o7d0-x-025-solid-oxide-fuel-cells" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/102422.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">127</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">6637</span> Solid-State Sodium Conductor for Solid-State Battery</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Yumei%20Wang">Yumei Wang</a>, <a href="https://publications.waset.org/abstracts/search?q=Xiaoyu%20Xu"> Xiaoyu Xu</a>, <a href="https://publications.waset.org/abstracts/search?q=Li%20Lu"> Li Lu</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Solid-state battery adopts solid-state electrolyte such as oxide- and composite-based solid electrolytes. With the adaption of nonflammable or less flammable solid electrolytes, the safety of solid-state batteries can be largely increased. NASICON (Na₃Zr₂Si₂PO₁₂, NZSP) is one of the sodium ion conductors that possess relatively high ionic conductivity, wide electrochemical stable range and good chemical stability. Therefore, it has received increased attention. We report the development of high-density NZSP through liquid phase sintering and its organic-inorganic composite electrolyte. Through reactive liquid phase sintering, the grain boundary conductivity can be largely enhanced while using an organic-inorganic composite electrolyte, interfacial wetting and impedance can be largely reduced hence being possible to fabricate scalable solid-state batteries. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=solid-state%20electrolyte" title="solid-state electrolyte">solid-state electrolyte</a>, <a href="https://publications.waset.org/abstracts/search?q=composite%20electrolyte" title=" composite electrolyte"> composite electrolyte</a>, <a href="https://publications.waset.org/abstracts/search?q=electrochemical%20performance" title=" electrochemical performance"> electrochemical performance</a>, <a href="https://publications.waset.org/abstracts/search?q=conductivity" title=" conductivity"> conductivity</a> </p> <a href="https://publications.waset.org/abstracts/169003/solid-state-sodium-conductor-for-solid-state-battery" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/169003.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">123</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">6636</span> Lanthanum Strontium Titanate Based Anode Materials for Intermediate Temperature Solid Oxide Fuel Cells</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=A.%20Saurabh%20Singh">A. Saurabh Singh</a>, <a href="https://publications.waset.org/abstracts/search?q=B.%20Raghvendra"> B. Raghvendra</a>, <a href="https://publications.waset.org/abstracts/search?q=C.%20Prabhakar%20Singh"> C. Prabhakar Singh</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Solid Oxide Fuel Cells (SOFCs) are one of the most attractive electrochemical energy conversion systems, as these devices present a clean energy production, thus promising high efficiencies and low environmental impact. The electrodes are the main components that decisively control the performance of a SOFC. Conventional, anode materials (like Ni-YSZ) are operates at very high temperature. Therefore, cost-effective materials which operate at relatively lower temperatures are still required. In present study, we have synthesized La doped Strontium Titanate via solid state reaction route. The structural, microstructural and density of the pellet have been investigated employing XRD, SEM and Archimedes Principle, respectively. The electrical conductivity of the systems has been determined by impedance spectroscopy techniques. The electrical conductivity of the Lanthanum Strontium Titanate (LST) has been found to be higher than the composite Ni-YSZ system at 700 °C. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=IT-SOFC" title="IT-SOFC">IT-SOFC</a>, <a href="https://publications.waset.org/abstracts/search?q=LST" title=" LST"> LST</a>, <a href="https://publications.waset.org/abstracts/search?q=Lanthanum%20Strontium%20Titanate" title=" Lanthanum Strontium Titanate"> Lanthanum Strontium Titanate</a>, <a href="https://publications.waset.org/abstracts/search?q=electrical%20conductivity" title=" electrical conductivity"> electrical conductivity</a> </p> <a href="https://publications.waset.org/abstracts/21206/lanthanum-strontium-titanate-based-anode-materials-for-intermediate-temperature-solid-oxide-fuel-cells" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/21206.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">386</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">6635</span> LiTa2PO8-based Composite Solid Polymer Electrolytes for High-Voltage Cathodes in Lithium-Metal Batteries</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Kumlachew%20Zelalem%20Walle">Kumlachew Zelalem Walle</a>, <a href="https://publications.waset.org/abstracts/search?q=Chun-Chen%20Yang"> Chun-Chen Yang</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Solid-state Lithium metal batteries (SSLMBs) that contain polymer and ceramic solid electrolytes have received considerable attention as an alternative to substitute liquid electrolytes in lithium metal batteries (LMBs) for highly safe, excellent energy storage performance and stability under elevated temperature situations. Here, a novel fast Li-ion conducting material, LiTa₂PO₈ (LTPO), was synthesized and electrochemical performance of as-prepared powder and LTPO-incorporated composite solid polymer electrolyte (LTPO-CPE) membrane were investigated. The as-prepared LTPO powder was homogeneously dispersed in polymer matrices, and a hybrid solid electrolyte membrane was synthesized via a simple solution-casting method. The room temperature total ionic conductivity (σt) of the LTPO pellet and LTPO-CPE membrane were 0.14 and 0.57 mS cm-1, respectively. A coin battery with NCM811 cathode is cycled under 1C between 2.8 to 4.5 V at room temperature, achieving a Coulombic efficiency of 99.3% with capacity retention of 74.1% after 300 cycles. Similarly, the LFP cathode also delivered an excellent performance at 0.5C with an average Coulombic efficiency of 100% without virtually capacity loss (the maximum specific capacity is at 27th: 138 mAh g−1 and 500th: 131.3 mAh g−1). These results demonstrates the feasibility of a high Li-ion conductor LTPO as a filler, and the developed polymer/ceramic hybrid electrolyte has potential to be a high-performance electrolyte for high-voltage cathodes, which may provide a fresh platform for developing more advanced solid-state electrolytes. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=li-ion%20conductor" title="li-ion conductor">li-ion conductor</a>, <a href="https://publications.waset.org/abstracts/search?q=lithium-metal%20batteries" title=" lithium-metal batteries"> lithium-metal batteries</a>, <a href="https://publications.waset.org/abstracts/search?q=composite%20solid%20electrolytes" title=" composite solid electrolytes"> composite solid electrolytes</a>, <a href="https://publications.waset.org/abstracts/search?q=liTa2PO8" title=" liTa2PO8"> liTa2PO8</a>, <a href="https://publications.waset.org/abstracts/search?q=high-voltage%20cathode" title=" high-voltage cathode"> high-voltage cathode</a> </p> <a href="https://publications.waset.org/abstracts/175159/lita2po8-based-composite-solid-polymer-electrolytes-for-high-voltage-cathodes-in-lithium-metal-batteries" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/175159.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">66</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">6634</span> Internal Methane Dry Reforming Kinetic Models in Solid Oxide Fuel Cells</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Saeed%20Moarrefi">Saeed Moarrefi</a>, <a href="https://publications.waset.org/abstracts/search?q=Shou-Han%20Zhou"> Shou-Han Zhou</a>, <a href="https://publications.waset.org/abstracts/search?q=Liyuan%20Fan"> Liyuan Fan</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Coupling with solid oxide fuel cells, methane dry reforming is a promising pathway for energy production while mitigating carbon emissions. However, the influence of carbon dioxide and electrochemical reactions on the internal dry reforming reaction within the fuel cells remains debatable, requiring accurate kinetic models to describe the internal reforming behaviors. We employed the Power-Law and Langmuir Hinshelwood–Hougen Watson models in an electrolyte-supported solid oxide fuel cell with a NiO-GDC-YSZ anode. The current density used in this study ranges from 0 to 1000 A/m2 at 973 K to 1173 K to estimate various kinetic parameters. The influence of the electrochemical reactions on the adsorption terms, the equilibrium of the reactions, the activation energy, the pre-exponential factor of the rate constant, and the adsorption equilibrium constant were studied. This study provides essential parameters for future simulations and highlights the need for a more detailed examination of reforming kinetic models. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=dry%20reforming%20kinetics" title="dry reforming kinetics">dry reforming kinetics</a>, <a href="https://publications.waset.org/abstracts/search?q=Langmuir%20Hinshelwood%E2%80%93Hougen%20Watson" title=" Langmuir Hinshelwood–Hougen Watson"> Langmuir Hinshelwood–Hougen Watson</a>, <a href="https://publications.waset.org/abstracts/search?q=power-law" title=" power-law"> power-law</a>, <a href="https://publications.waset.org/abstracts/search?q=SOFC" title=" SOFC"> SOFC</a> </p> <a href="https://publications.waset.org/abstracts/191385/internal-methane-dry-reforming-kinetic-models-in-solid-oxide-fuel-cells" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/191385.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">22</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">6633</span> Electrical and Structural Properties of Solid Electrolyte Systems</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Yasin%20Polat">Yasin Polat</a>, <a href="https://publications.waset.org/abstracts/search?q=Y%C4%B1lmaz%20Da%C4%9Fdemir"> Yılmaz Dağdemir</a>, <a href="https://publications.waset.org/abstracts/search?q=Mehmet%20Ar%C4%B1"> Mehmet Arı</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Samarium (III) oxide and Ytterbium (III) oxide doped Bismuth trioxide solid solutions, the nano ceramic (Bi2O3)1-x-y(Sm2O3)x(Yb2O3)y ternary system were obtained with x=5, 20 mol %, and y=5, 20 mol % dopant concentrations have been synthesized in air atmosphere with solid state reaction. Temperature dependent electrical conductivity of the samples have been investigated by 4-point probe technique by heating and cooling process. Doped-Bi2O3 materials of solid electrolyte systems are good oxygen anions O2-conductors which have collected much attention as potential solid ceramic electrolytes for solid oxide fuel cells (SOFCs) because of their relatively high oxygen ionic conductivity at lower temperatures.(Bi2O3)-based electrolytes have also wide other technological applications in devices with high economical interest such as oxygen sensors, ceramic membranes for oxygen separation, oxygen pumps, catalyzing of some heterogeneous reactions, partial oxidation of the hydrocarbons, and additive material in paints. In recent years, many experimental researches have mostly focused on improving of the Bi-based electrolytes which have high oxide ionic conductivity at low temperatures and better performance as alternatives to traditional stabilized zirconia has taken place. Generally, these systems are much better solid electrolytes than well-known stabilized zirconia, because some of the bismuth trioxide phases exhibit higher ion conductivity than other oxide ionic conductors. Crystal structure of the Nano ceramic (Bi2O3)1-x-y(Sm2O3)x(Yb2O3)y has been determined by X-Ray powder diffractions (XRD) measurements before and after electrical conductivity measurements of the samples. Surface and grain structure properties of the samples were determined by SEM analysis. The samples which synthesized in this study can be used in industrial applications such as electrolytes of the solid oxide fuel cells (SOFC). <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=4-point%20probe%20technique" title="4-point probe technique">4-point probe technique</a>, <a href="https://publications.waset.org/abstracts/search?q=bismuth%20trioxide" title=" bismuth trioxide"> bismuth trioxide</a>, <a href="https://publications.waset.org/abstracts/search?q=solid%20state%20reaction" title=" solid state reaction"> solid state reaction</a>, <a href="https://publications.waset.org/abstracts/search?q=solid%20oxide%20fuel%20cell" title=" solid oxide fuel cell"> solid oxide fuel cell</a> </p> <a href="https://publications.waset.org/abstracts/2073/electrical-and-structural-properties-of-solid-electrolyte-systems" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/2073.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">301</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">6632</span> Development of LSM/YSZ Composite Anode Materials for Solid Oxide Electrolysis Cells</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Christian%20C.%20Vaso">Christian C. Vaso</a>, <a href="https://publications.waset.org/abstracts/search?q=Rinlee%20Butch%20M.%20Cervera"> Rinlee Butch M. Cervera</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Solid oxide electrolysis cell (SOEC) is a promising technology for hydrogen production that will contribute to the sustainable energy of the future. An important component of this SOEC is the anode material and one of the promising anode material for such application is the Sr-doped LaMnO3 (LSM) and Yttrium-stabilized ZrO2 (YSZ) composite material. In this study, LSM/YSZ with different weight percent compositions of LSM and YSZ were synthesized using solid-state reaction method. The obtained samples, 60LSM/40YSZ, 50LSM/50YSZ, and 40LSM/60YSZ, were fully characterized for its microstructure using X-ray diffraction, FTIR, and SEM/EDS. EDS analysis confirmed the elemental composition and distribution of the synthesized samples. Surface morphology of the sample using SEM exhibited a well sintered and densified samples and revealed a beveled cube-like LSM morphology while the YSZ phase appeared to have a sphere-like microstructure. Density measurements using Archimedes principle showed relative densities greater than 90%. In addition, AC impedance measurement of the synthesized samples have been investigated at intermediate temperature range (400-700 °C) in an inert and oxygen gas flow environment. At pure states, LSM exhibited a high electronic conductivity while YSZ demonstrated an ionic conductivity of 3.25 x 10-4 S/cm at 700 °C under Oxygen gas environment with calculated activation energy of 0.85eV. The composite samples were also studied and revealed that as the YSZ content of the composite electrode increases, the total conductivity decreases. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=ceramic%20composites" title="ceramic composites">ceramic composites</a>, <a href="https://publications.waset.org/abstracts/search?q=fuel%20cells" title=" fuel cells"> fuel cells</a>, <a href="https://publications.waset.org/abstracts/search?q=strontium%20lanthanum%20manganite" title=" strontium lanthanum manganite"> strontium lanthanum manganite</a>, <a href="https://publications.waset.org/abstracts/search?q=yttria%20partially-stabilized%20zirconia" title=" yttria partially-stabilized zirconia"> yttria partially-stabilized zirconia</a> </p> <a href="https://publications.waset.org/abstracts/50152/development-of-lsmysz-composite-anode-materials-for-solid-oxide-electrolysis-cells" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/50152.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">312</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">6631</span> Study of Porous Metallic Support for Intermediate-Temperature Solid Oxide Fuel Cells </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=S.%20Belakry">S. Belakry</a>, <a href="https://publications.waset.org/abstracts/search?q=D.%20Fasquelle"> D. Fasquelle</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20Rolle"> A. Rolle</a>, <a href="https://publications.waset.org/abstracts/search?q=E.%20Capoen"> E. Capoen</a>, <a href="https://publications.waset.org/abstracts/search?q=R.%20N.%20Vannier"> R. N. Vannier</a>, <a href="https://publications.waset.org/abstracts/search?q=J.%20C.%20Carru"> J. C. Carru</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Solid oxide fuel cells (SOFCs) are promising devices for energy conversion due to their high electrical efficiency and eco-friendly behavior. Their performance is not only influenced by the microstructural and electrical properties of the electrodes and electrolyte but also depends on the interactions at the interfaces. Nowadays, commercial SOFCs are electrically efficient at high operating temperatures, typically between 800 and 1000 °C, which restricts their real-life applications. The present work deals with the objectives to reduce the operating temperature and to develop cost-effective intermediate-temperature solid oxide fuel cells (IT-SOFCs). This work focuses on the development of metal-supported solid oxide fuel cells (MS-IT-SOFCs) that would provide cheaper SOFC cells with increased lifetime and reduced operating temperature. In the framework, the local company TIBTECH brings its skills for the manufacturing of porous metal supports. This part of the work focuses on the physical, chemical, and electrical characterizations of porous metallic supports (stainless steel 316 L and FeCrAl alloy) under different exposure conditions of temperature and atmosphere by studying oxidation, mechanical resistance, and electrical conductivity of the materials. Within the target operating temperature (i.e., 500 to 700 ° C), the stainless steel 316 L and FeCrAl alloy slightly oxidize in the air and H2, but don’t deform; whereas under Ar atmosphere, they oxidize more than with previously mentioned atmospheres. Above 700 °C under air and Ar, the two metallic supports undergo high oxidation. From 500 to 700 °C, the resistivity of FeCrAl increases by 55%. But nevertheless, the FeCrAl resistivity increases more slowly than the stainless steel 316L resistivity. This study allows us to verify the compatibility of electrodes and electrolyte materials with metallic support at the operating requirements of the IT-SOFC cell. The characterizations made in this context will also allow us to choose the most suitable fabrication process for all functional layers in order to limit the oxidation of the metallic supports. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=stainless%20steel%20316L" title="stainless steel 316L">stainless steel 316L</a>, <a href="https://publications.waset.org/abstracts/search?q=FeCrAl%20alloy" title=" FeCrAl alloy"> FeCrAl alloy</a>, <a href="https://publications.waset.org/abstracts/search?q=solid%20oxide%20fuel%20cells" title=" solid oxide fuel cells"> solid oxide fuel cells</a>, <a href="https://publications.waset.org/abstracts/search?q=porous%20metallic%20support" title=" porous metallic support"> porous metallic support</a> </p> <a href="https://publications.waset.org/abstracts/126908/study-of-porous-metallic-support-for-intermediate-temperature-solid-oxide-fuel-cells" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/126908.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">93</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">6630</span> Nafion Nanofiber Composite Membrane Fabrication for Fuel Cell Applications</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=C.%20N.%20Okafor">C. N. Okafor</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20Maaza"> M. Maaza</a>, <a href="https://publications.waset.org/abstracts/search?q=T.%20A.%20E.%20Mokrani"> T. A. E. Mokrani</a> </p> <p class="card-text"><strong>Abstract:</strong></p> A proton exchange membrane has been developed for Direct Methanol Fuel Cell (DMFC). The nanofiber network composite membranes were prepared by interconnected network of Nafion (perfuorosulfonic acid) nanofibers that have been embedded in an uncharged and inert polymer matrix, by electro-spinning. The spinning solution of Nafion with a low concentration (1 wt. % compared to Nafion) of high molecular weight poly(ethylene oxide), as a carrier polymer. The interconnected network of Nafion nanofibers with average fiber diameter in the range of 160-700nm, were used to make the membranes, with the nanofiber occupying up to 85% of the membrane volume. The matrix polymer was cross-linked with Norland Optical Adhesive 63 under UV. The resulting membranes showed proton conductivity of 0.10 S/cm at 25°C and 80% RH; and methanol permeability of 3.6 x 10-6 cm2/s. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=composite%20membrane" title="composite membrane">composite membrane</a>, <a href="https://publications.waset.org/abstracts/search?q=electrospinning" title=" electrospinning"> electrospinning</a>, <a href="https://publications.waset.org/abstracts/search?q=fuel%20cell" title=" fuel cell"> fuel cell</a>, <a href="https://publications.waset.org/abstracts/search?q=nanofibers" title=" nanofibers"> nanofibers</a> </p> <a href="https://publications.waset.org/abstracts/6757/nafion-nanofiber-composite-membrane-fabrication-for-fuel-cell-applications" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/6757.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">266</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">6629</span> Thermal Decomposition of Ammonium Perchlorate in the Presence of Ferric Oxide and Graphene Oxide Nonmaterial’s</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mourad%20Makhlouf">Mourad Makhlouf</a>, <a href="https://publications.waset.org/abstracts/search?q=Bouabdellah%20Benaicha"> Bouabdellah Benaicha</a>, <a href="https://publications.waset.org/abstracts/search?q=Zoubir%20Benmaamar"> Zoubir Benmaamar</a>, <a href="https://publications.waset.org/abstracts/search?q=Didier%20Villemin"> Didier Villemin</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The addition of combustion catalysts to ammonium perchlorate-based composite fuels can indeed significantly enhance their performance. In this work, a nanocomposite was synthesized using graphene oxide (GO) and hematite nanoparticles grafted onto graphene oxide as a catalyst support.To characterize the nanocomposite, several experimental techniques were employed, including Fourier-transform infrared spectroscopy (FTIR), Raman spectroscopy, and scanning electron microscopy (SEM). FTIR is useful for analyzing chemical bonding and functional groups, while Raman spectroscopy provides information about the vibrational modes of the materials. SEM allows for visualizing the surface morphology and structure.The thermal analysis of two mixtures, one based on AP/GO and the other on AP/GO-Fe2O3, was conducted with varying percentages. The results indicated that the nanocomposite GO-Fe2O3 acted as a catalyst, significantly accelerating the thermal decomposition process of AP. This catalytic effect ultimately led to an improvement in the energy performance of the composite fuel.Overall, the synthesis and characterization of the nanocomposite, as well as the thermal analysis, demonstrated the effectiveness of GO-Fe2O3 as a combustion catalyst in enhancing the performance of ammonium perchlorate-based composite fuels. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=composite%20propellants" title="composite propellants">composite propellants</a>, <a href="https://publications.waset.org/abstracts/search?q=ammonium%20perchlorate" title=" ammonium perchlorate"> ammonium perchlorate</a>, <a href="https://publications.waset.org/abstracts/search?q=nanocomposite" title=" nanocomposite"> nanocomposite</a>, <a href="https://publications.waset.org/abstracts/search?q=catalytic%20support" title=" catalytic support"> catalytic support</a>, <a href="https://publications.waset.org/abstracts/search?q=hematite%20nanoparticles" title=" hematite nanoparticles"> hematite nanoparticles</a>, <a href="https://publications.waset.org/abstracts/search?q=graphene%20oxide" title=" graphene oxide"> graphene oxide</a>, <a href="https://publications.waset.org/abstracts/search?q=thermal%20decomposition" title=" thermal decomposition"> thermal decomposition</a> </p> <a href="https://publications.waset.org/abstracts/186830/thermal-decomposition-of-ammonium-perchlorate-in-the-presence-of-ferric-oxide-and-graphene-oxide-nonmaterials" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/186830.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">48</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">6628</span> An Experimental Investigation on the Fuel Characteristics of Nano-Aluminium Oxide and Nano-Cobalt Oxide Particles Blended in Diesel Fuel </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=S.%20Singh">S. Singh</a>, <a href="https://publications.waset.org/abstracts/search?q=P.%20Patel"> P. Patel</a>, <a href="https://publications.waset.org/abstracts/search?q=D.%20Kachhadiya"> D. Kachhadiya</a>, <a href="https://publications.waset.org/abstracts/search?q=Swapnil%20Dharaskar"> Swapnil Dharaskar</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The research objective is to integrate nanoparticles into fuels- i.e. diesel, biodiesel, biodiesel blended with diesel, plastic derived fuels, etc. to increase the fuel efficiency. The metal oxide nanoparticles will reduce the carbon monoxide emissions by donating oxygen atoms from their lattices to catalyze the combustion reactions and to aid complete combustion; due to this, there will be an increase in the calorific value of the blend (fuel + metal nanoparticles). Aluminium oxide and cobalt oxide nanoparticles have been synthesized by sol-gel method. The characterization was done by Fourier Transform Infrared Spectroscopy (FTIR), X-Ray Diffraction (XRD), Scanning Electron Microscope (SEM) and Energy Dispersive X-ray Spectroscopy (EDS). The size of the particles was determined by XRD to be 28.6 nm and 28.06 nm for aluminium oxide and cobalt oxide nanoparticles respectively. Different concentration blends- 50, 100, 150 ppm were prepared by adding the required weight of metal oxides in 1 liter of diesel and sonicating for 30 minutes at 500W. The blend properties- calorific value, viscosity, and flash point were determined by bomb calorimeter, Brookfield viscometer and pensky-martin apparatus. For the aluminum oxide blended diesel, there was a maximum increase of 5.544% in the calorific value, but at the same time, there was an increase in the flash point from 43°C to 58.5°C and an increase in the viscosity from 2.45 cP to 3.25 cP. On the other hand, for the cobalt oxide blended diesel there was a maximum increase of 2.012% in the calorific value while the flash point increased from 43°C to 51.5°C and the viscosity increased from 2.45 cP to 2.94 cP. There was a linear increase in the calorific value, viscosity and flash point when the concentration of the metal oxide nanoparticles in the blend was increased. For the 50 ppm Al₂O₃ and 50 ppm Co₃O₄ blend the increasing the calorific value was 1.228 %, and the viscosity changed from 2.45 cP to 2.64 cP and the flash point increased from 43°C to 50.5°C. Clearly the aluminium oxide nanoparticles increase the calorific value but at the cost of flash point and viscosity, thus it is better to use the 50 ppm aluminium oxide, and 50 ppm cobalt oxide blended diesel. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=aluminium%20oxide%20nanoparticles" title="aluminium oxide nanoparticles">aluminium oxide nanoparticles</a>, <a href="https://publications.waset.org/abstracts/search?q=cobalt%20oxide%20nanoparticles" title=" cobalt oxide nanoparticles"> cobalt oxide nanoparticles</a>, <a href="https://publications.waset.org/abstracts/search?q=fuel%20additives" title=" fuel additives"> fuel additives</a>, <a href="https://publications.waset.org/abstracts/search?q=fuel%20characteristics" title=" fuel characteristics"> fuel characteristics</a> </p> <a href="https://publications.waset.org/abstracts/72707/an-experimental-investigation-on-the-fuel-characteristics-of-nano-aluminium-oxide-and-nano-cobalt-oxide-particles-blended-in-diesel-fuel" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/72707.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">322</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">6627</span> Application of Electrochemically Prepared PPy/MWCNT:MnO2 Nano-Composite Film in Microbial Fuel Cells for Sustainable Power Generation</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Rajeev%20jain">Rajeev jain</a>, <a href="https://publications.waset.org/abstracts/search?q=D.%20C.%20Tiwari"> D. C. Tiwari</a>, <a href="https://publications.waset.org/abstracts/search?q=Praveena%20Mishra"> Praveena Mishra</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Nano-composite of polypyrrole/multiwalled carbon nanotubes:mangenese oxide (PPy/MWCNT:MnO2) was electrochemically deposited on the surface of carbon cloth (CC). The nano-composite was structurally characterized by FTIR, SEM, TEM and UV-Vis studies. Nano-composite was also characterized by cyclic voltammetry (CV), current voltage measurements (I-V) and the optical band gaps of film were evaluated from UV-Vis absorption studies. The PPy/MWCNT:MnO2 nano-composite was used as anode in microbial fuel cell (MFC) for sewage waste water treatment, power and coulombic efficiency measurement. The prepared electrode showed good electrical conductivity (0.1185 S m-1). This was also supported by band gap measurements (direct 0.8 eV, indirect 1.3 eV). The obtained maximum power density was 1125.4 mW m-2, highest chemical oxygen demand (COD) removal efficiency was 93% and the maximum coulombic efficiency was 59%. For the first time PPy/MWCNT:MnO2 nano-composite for MFC prepared from nano-composite electrode having the potential for the use in MFC with good stability and better adhesion of microbes is being reported. The SEM images confirm the growth and development of microbe’s colony. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=carbon%20cloth" title="carbon cloth">carbon cloth</a>, <a href="https://publications.waset.org/abstracts/search?q=electro-polymerization" title=" electro-polymerization"> electro-polymerization</a>, <a href="https://publications.waset.org/abstracts/search?q=functionalization" title=" functionalization"> functionalization</a>, <a href="https://publications.waset.org/abstracts/search?q=microbial%20fuel%20cells" title=" microbial fuel cells"> microbial fuel cells</a>, <a href="https://publications.waset.org/abstracts/search?q=multi%20walled%20carbon%20nanotubes" title=" multi walled carbon nanotubes"> multi walled carbon nanotubes</a>, <a href="https://publications.waset.org/abstracts/search?q=polypyrrole" title=" polypyrrole"> polypyrrole</a> </p> <a href="https://publications.waset.org/abstracts/44299/application-of-electrochemically-prepared-ppymwcntmno2-nano-composite-film-in-microbial-fuel-cells-for-sustainable-power-generation" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/44299.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">271</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">6626</span> Anion Exchange Nanocomposite Membrane Doped with ZnO-Nanoparticles for Direct Methanol Alkaline Fuel Cell</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Phumlani%20Msomi">Phumlani Msomi</a>, <a href="https://publications.waset.org/abstracts/search?q=Patrick%20Nonjola"> Patrick Nonjola</a>, <a href="https://publications.waset.org/abstracts/search?q=Patrick%20Ndungu"> Patrick Ndungu</a>, <a href="https://publications.waset.org/abstracts/search?q=James%20Ramontja"> James Ramontja</a> </p> <p class="card-text"><strong>Abstract:</strong></p> A series of quaternized poly (2.6 dimethyl – 1.4 phenylene oxide)/ polysulfone (QPPO/PSF) blend anion exchange membrane (AEM) were successfully fabricated and characterized for methanol alkaline fuel cell application. Zinc Oxide (ZnO) nanoparticles were introduced in the polymer matrix to enhance the intrinsic properties of the AEM. To confirm successful fabrication, FT-IR spectroscopy and nuclear magnetic resonance (¹H NMR and HMBC ¹⁵N NMR) were used. The membrane properties were enhanced by the addition of ZnO nanoparticles. The addition of ZnO nanoparticles resulted to a higher ion exchange capacity (IEC) of 3.72 mmol.g⁻¹and a 30-fold ion conductivity (IC) increase of the nanocomposite due to no (zero (0)) methanol permeability at 30 °C and increased water uptake. The QPPO/PSF/2% ZnO composite retained over 80 % of its initial IC when evaluated for alkaline stability at room temperature. The maximum power output reached for the membrane electrode assembly (MEA) constructed with QPPO/PSF/2%ZnO is 69 mW.cm⁻², which is about three times more than the parent QPPO membrane. The above results indicate that QPPO/PSF-ZnO is a good candidate as an anion exchange membrane for fuel cell application. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=anion%20exchange%20membrane" title="anion exchange membrane">anion exchange membrane</a>, <a href="https://publications.waset.org/abstracts/search?q=fuel%20cell" title=" fuel cell"> fuel cell</a>, <a href="https://publications.waset.org/abstracts/search?q=zinc%20oxide" title=" zinc oxide"> zinc oxide</a>, <a href="https://publications.waset.org/abstracts/search?q=nanocomposite" title=" nanocomposite"> nanocomposite</a> </p> <a href="https://publications.waset.org/abstracts/75947/anion-exchange-nanocomposite-membrane-doped-with-zno-nanoparticles-for-direct-methanol-alkaline-fuel-cell" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/75947.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">272</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">6625</span> Nanostructured Pt/MnO2 Catalysts and Their Performance for Oxygen Reduction Reaction in Air Cathode Microbial Fuel Cell</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Maksudur%20Rahman%20Khan">Maksudur Rahman Khan</a>, <a href="https://publications.waset.org/abstracts/search?q=Kar%20Min%20Chan"> Kar Min Chan</a>, <a href="https://publications.waset.org/abstracts/search?q=Huei%20Ruey%20Ong"> Huei Ruey Ong</a>, <a href="https://publications.waset.org/abstracts/search?q=Chin%20Kui%20Cheng"> Chin Kui Cheng</a>, <a href="https://publications.waset.org/abstracts/search?q=Wasikur%20Rahman"> Wasikur Rahman</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Microbial fuel cells (MFCs) represent a promising technology for simultaneous bioelectricity generation and wastewater treatment. Catalysts are significant portions of the cost of microbial fuel cell cathodes. Many materials have been tested as aqueous cathodes, but air-cathodes are needed to avoid energy demands for water aeration. The sluggish oxygen reduction reaction (ORR) rate at air cathode necessitates efficient electrocatalyst such as carbon supported platinum catalyst (Pt/C) which is very costly. Manganese oxide (MnO2) was a representative metal oxide which has been studied as a promising alternative electrocatalyst for ORR and has been tested in air-cathode MFCs. However, the single MnO2 has poor electric conductivity and low stability. In the present work, the MnO2 catalyst has been modified by doping Pt nanoparticle. The goal of the work was to improve the performance of the MFC with minimum Pt loading. MnO2 and Pt nanoparticles were prepared by hydrothermal and sol-gel methods, respectively. Wet impregnation method was used to synthesize Pt/MnO2 catalyst. The catalysts were further used as cathode catalysts in air-cathode cubic MFCs, in which anaerobic sludge was inoculated as biocatalysts and palm oil mill effluent (POME) was used as the substrate in the anode chamber. The as-prepared Pt/MnO2 was characterized comprehensively through field emission scanning electron microscope (FESEM), X-Ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), and cyclic voltammetry (CV) where its surface morphology, crystallinity, oxidation state and electrochemical activity were examined, respectively. XPS revealed Mn (IV) oxidation state and Pt (0) nanoparticle metal, indicating the presence of MnO2 and Pt. Morphology of Pt/MnO2 observed from FESEM shows that the doping of Pt did not cause change in needle-like shape of MnO2 which provides large contacting surface area. The electrochemical active area of the Pt/MnO2 catalysts has been increased from 276 to 617 m2/g with the increase in Pt loading from 0.2 to 0.8 wt%. The CV results in O2 saturated neutral Na2SO4 solution showed that MnO2 and Pt/MnO2 catalysts could catalyze ORR with different catalytic activities. MFC with Pt/MnO2 (0.4 wt% Pt) as air cathode catalyst generates a maximum power density of 165 mW/m3, which is higher than that of MFC with MnO2 catalyst (95 mW/m3). The open circuit voltage (OCV) of the MFC operated with MnO2 cathode gradually decreased during 14 days of operation, whereas the MFC with Pt/MnO2 cathode remained almost constant throughout the operation suggesting the higher stability of the Pt/MnO2 catalyst. Therefore, Pt/MnO2 with 0.4 wt% Pt successfully demonstrated as an efficient and low cost electrocatalyst for ORR in air cathode MFC with higher electrochemical activity, stability and hence enhanced performance. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=microbial%20fuel%20cell" title="microbial fuel cell">microbial fuel cell</a>, <a href="https://publications.waset.org/abstracts/search?q=oxygen%20reduction%20reaction" title=" oxygen reduction reaction"> oxygen reduction reaction</a>, <a href="https://publications.waset.org/abstracts/search?q=Pt%2FMnO2" title=" Pt/MnO2"> Pt/MnO2</a>, <a href="https://publications.waset.org/abstracts/search?q=palm%20oil%20mill%20effluent" title=" palm oil mill effluent"> palm oil mill effluent</a>, <a href="https://publications.waset.org/abstracts/search?q=polarization%20curve" title=" polarization curve"> polarization curve</a> </p> <a href="https://publications.waset.org/abstracts/19318/nanostructured-ptmno2-catalysts-and-their-performance-for-oxygen-reduction-reaction-in-air-cathode-microbial-fuel-cell" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/19318.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">557</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">6624</span> Synthesis and Study of Structural, Morphological, and Electrochemical Properties of Ceria co-doped for SOFC Applications</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Fatima%20Melit">Fatima Melit</a>, <a href="https://publications.waset.org/abstracts/search?q=Nedjemeddine%20Bounar"> Nedjemeddine Bounar</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Polycrystalline samples of Ce1-xMxO2-δ (x=0.1, 0.15, 0.2)(M=Gd, Y) were prepared by solid-state chemical reaction from mixtures of pre-dried oxides powders of CeO2, Gd2O3 and Y2O3 in the appropriate stoichiometric ratio to explore their use as solid electrolytes for intermediate temperature solid oxide fuel cells (IT-SOFCs). Their crystal structures and ionic conductivities were characterised by X-ray powder diffraction (XRD) and AC complex impedance spectroscopy (EIS). The XRD analyses confirm that all the resulting synthesised co-doped cerium oxide powders are single-phase and crystallise in the cubic structure system with the space group Fm3m. On the one hand, the lattice parameter (a ) of the phases increases with increasing Gd content; on the other hand, with increasing Y-substitution rate, the latter decreases. The results of complex impedance conductivity measurements have shown that doping has a remarkable effect on conductivity. The co-doped cerium phases showed significant ionic conductivity values, making these materials excellent candidates for solid oxide electrolytes at intermediate temperatures. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=electrolyte" title="electrolyte">electrolyte</a>, <a href="https://publications.waset.org/abstracts/search?q=Ceria" title=" Ceria"> Ceria</a>, <a href="https://publications.waset.org/abstracts/search?q=X-ray%20diffraction" title=" X-ray diffraction"> X-ray diffraction</a>, <a href="https://publications.waset.org/abstracts/search?q=EIS" title=" EIS"> EIS</a>, <a href="https://publications.waset.org/abstracts/search?q=SEM" title=" SEM"> SEM</a>, <a href="https://publications.waset.org/abstracts/search?q=SOFC" title=" SOFC"> SOFC</a> </p> <a href="https://publications.waset.org/abstracts/157518/synthesis-and-study-of-structural-morphological-and-electrochemical-properties-of-ceria-co-doped-for-sofc-applications" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/157518.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">144</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">6623</span> Effect of Leaks in Solid Oxide Electrolysis Cells Tested for Durability under Co-Electrolysis Conditions</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Megha%20Rao">Megha Rao</a>, <a href="https://publications.waset.org/abstracts/search?q=S%C3%B8ren%20H.%20Jensen"> Søren H. Jensen</a>, <a href="https://publications.waset.org/abstracts/search?q=Xiufu%20Sun"> Xiufu Sun</a>, <a href="https://publications.waset.org/abstracts/search?q=Anke%20Hagen"> Anke Hagen</a>, <a href="https://publications.waset.org/abstracts/search?q=Mogens%20B.%20Mogensen"> Mogens B. Mogensen</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Solid oxide electrolysis cells have an immense potential in converting CO<sub>2</sub> and H<sub>2</sub>O into syngas during co-electrolysis operation. The produced syngas can be further converted into hydrocarbons. This kind of technology is called power-to-gas or power-to-liquid. To produce hydrocarbons via this route, durability of the cells is still a challenge, which needs to be further investigated in order to improve the cells. In this work, various nickel-yttria stabilized zirconia (Ni-YSZ) fuel electrode supported or YSZ electrolyte supported cells, cerium gadolinium oxide (CGO) barrier layer, and an oxygen electrode are investigated for durability under co-electrolysis conditions in both galvanostatic and potentiostatic conditions. While changing the gas on the oxygen electrode, keeping the fuel electrode gas composition constant, a change in the gas concentration arc was observed by impedance spectroscopy. Measurements of open circuit potential revealed the presence of leaks in the setup. It is speculated that the change in concentration impedance may be related to the leaks. Furthermore, the cells were also tested under pressurized conditions to find an inter-play between the leak rate and the pressure. A mathematical modeling together with electrochemical and microscopy analysis is presented. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=co-electrolysis" title="co-electrolysis">co-electrolysis</a>, <a href="https://publications.waset.org/abstracts/search?q=durability" title=" durability"> durability</a>, <a href="https://publications.waset.org/abstracts/search?q=leaks" title=" leaks"> leaks</a>, <a href="https://publications.waset.org/abstracts/search?q=gas%20concentration%20arc" title=" gas concentration arc"> gas concentration arc</a> </p> <a href="https://publications.waset.org/abstracts/98653/effect-of-leaks-in-solid-oxide-electrolysis-cells-tested-for-durability-under-co-electrolysis-conditions" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/98653.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">145</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">6622</span> Garnet-based Bilayer Hybrid Solid Electrolyte for High-Voltage Cathode Material Modified with Composite Interface Enabler on Lithium-Metal Batteries</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Kumlachew%20Zelalem%20Walle">Kumlachew Zelalem Walle</a>, <a href="https://publications.waset.org/abstracts/search?q=Chun-Chen%20Yang"> Chun-Chen Yang</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Solid-state lithium metal batteries (SSLMBs) are considered promising candidates for next-generation energy storage devices due to their superior energy density and excellent safety. However, recent findings have shown that the formation of lithium (Li) dendrites in SSLMBs still exhibits a terrible growth ability, which makes the development of SSLMBs have to face the challenges posed by the Li dendrite problem. In this work, an inorganic/organic mixture coating material (g-C3N4/ZIF-8/PVDF) was used to modify the surface of lithium metal anode (LMA). Then the modified LMA (denoted as g-C₃N₄@Li) was assembled with lithium nafion (LiNf) coated commercial NCM811 (LiNf@NCM811) using a bilayer hybrid solid electrolyte (Bi-HSE) that incorporated 20 wt.% (vs. polymer) LiNf coated Li6.05Ga0.25La3Zr2O11.8F0.2 (<a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="400c290e26000c07706e72750c1a0f06">[email protected]</a>) filler faced to the positive electrode and the other layer with 80 wt.% (vs. polymer) filler content faced to the g-C₃N₄@Li. The garnet-type Li6.05Ga0.25La3Zr2O11.8F0.2 (LG0.25LZOF) solid electrolyte was prepared via co-precipitation reaction process from Taylor flow reactor and modified using lithium nafion (LiNf), a Li-ion conducting polymer. The Bi-HSE exhibited high ionic conductivity of 6.8  10–4 S cm–1 at room temperature, and a wide electrochemical window (0–5.0 V vs. Li/Li+). The coin cell was charged between 2.8 to 4.5 V at 0.2C and delivered an initial specific discharge capacity of 194.3 mAh g–1 and after 100 cycles it maintained 81.8% of its initial capacity at room temperature. The presence of a nano-sheet g-C3N4/ZIF-8/PVDF as a composite coating material on the LMA surface suppress the dendrite growth and enhance the compatibility as well as the interfacial contact between anode/electrolyte membrane. The g-C3N4@Li symmetrical cells incorporating this hybrid electrolyte possessed excellent interfacial stability over 1000 h at 0.1 mA cm–2 and a high critical current density (1 mA cm–2). Moreover, the in-situ formation of Li3N on the solid electrolyte interface (SEI) layer as depicted from the XPS result also improves the ionic conductivity and interface contact during the charge/discharge process. Therefore, these novel multi-layered fabrication strategies of hybrid/composite solid electrolyte membranes and modification of the LMA surface using mixed coating materials have potential applications in the preparation of highly safe high-voltage cathodes for SSLMBs. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=high-voltage%20cathodes" title="high-voltage cathodes">high-voltage cathodes</a>, <a href="https://publications.waset.org/abstracts/search?q=hybrid%20solid%20electrolytes" title=" hybrid solid electrolytes"> hybrid solid electrolytes</a>, <a href="https://publications.waset.org/abstracts/search?q=garnet" title=" garnet"> garnet</a>, <a href="https://publications.waset.org/abstracts/search?q=graphitic-carbon%20nitride%20%28g-C3N4%29" title=" graphitic-carbon nitride (g-C3N4)"> graphitic-carbon nitride (g-C3N4)</a>, <a href="https://publications.waset.org/abstracts/search?q=ZIF-8%20MOF" title=" ZIF-8 MOF"> ZIF-8 MOF</a> </p> <a href="https://publications.waset.org/abstracts/175160/garnet-based-bilayer-hybrid-solid-electrolyte-for-high-voltage-cathode-material-modified-with-composite-interface-enabler-on-lithium-metal-batteries" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/175160.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">67</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">6621</span> Performance and Processing Evaluation of Solid Oxide Cells by Co-Sintering of GDC Buffer Layer and LSCF Air Electrode</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Hyun-Jong%20Choi">Hyun-Jong Choi</a>, <a href="https://publications.waset.org/abstracts/search?q=Minjun%20Kwak"> Minjun Kwak</a>, <a href="https://publications.waset.org/abstracts/search?q=Doo-Won%20Seo"> Doo-Won Seo</a>, <a href="https://publications.waset.org/abstracts/search?q=Sang-Kuk%20Woo"> Sang-Kuk Woo</a>, <a href="https://publications.waset.org/abstracts/search?q=Sun-Dong%20Kim"> Sun-Dong Kim</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Solid Oxide Cell(SOC) systems can contribute to the transition to the hydrogen society by utilized as a power and hydrogen generator by the electrochemical reaction with high efficiency at high operation temperature (>750 ℃). La1-xSrxCo1-yFeyO3, which is an air electrode, is occurred stability degradations due to reaction and delamination with yittria stabilized zirconia(YSZ) electrolyte in a water electrolysis mode. To complement this phenomenon SOCs need gadolinium doped ceria(GDC) buffer layer between electrolyte and air electrode. However, GDC buffer layer requires a high sintering temperature and it causes a reaction with YSZ electrolyte. This study carried out low temperature sintering of GDC layer by applying Cu-oxide as a sintering aid. The effect of a copper additive as a sintering aid to lower the sintering temperature for the construction of solid oxide fuel cells (SOFCs) was investigated. GDC buffer layer with 0.25-10 mol% CuO sintering aid was prepared by reacting GDC power and copper nitrate solution followed by heating at 600 ℃. The sintering of CuO-added GDC powder was optimized by investigating linear shrinkage, microstructure, grain size, ionic conductivity, and activation energy of CuO-GDC electrolytes at temperatures ranging from 1100 to 1400 ℃. The sintering temperature of the CuO-GDC electrolyte decreases from 1400 ℃ to 1100 ℃ by adding the CuO sintering aid. The ionic conductivity of the CuO-GDC electrolyte shows a maximum value at 0.5 mol% of CuO. However, the addition of CuO has no significant effects on the activation energy of GDC electrolyte. GDC-LSCF layers were co-sintering at 1050 and 1100 ℃ and button cell tests were carried out at 750 ℃. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Co-Sintering" title="Co-Sintering">Co-Sintering</a>, <a href="https://publications.waset.org/abstracts/search?q=GDC-LSCF" title=" GDC-LSCF"> GDC-LSCF</a>, <a href="https://publications.waset.org/abstracts/search?q=Sintering%20Aid" title=" Sintering Aid"> Sintering Aid</a>, <a href="https://publications.waset.org/abstracts/search?q=solid%20Oxide%20Cells" title=" solid Oxide Cells"> solid Oxide Cells</a> </p> <a href="https://publications.waset.org/abstracts/66228/performance-and-processing-evaluation-of-solid-oxide-cells-by-co-sintering-of-gdc-buffer-layer-and-lscf-air-electrode" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/66228.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 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