Cyclic Voltammetry | Scientific.Net

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class="pagination-container"><ul class="pagination"><li class="active"><span>1</span></li><li><a href="/paper-keyword/cyclic-voltammetry/2">2</a></li><li><a href="/paper-keyword/cyclic-voltammetry/3">3</a></li><li><a href="/paper-keyword/cyclic-voltammetry/4">4</a></li><li><a href="/paper-keyword/cyclic-voltammetry/5">5</a></li><li class="PagedList-skipToNext"><a href="/paper-keyword/cyclic-voltammetry/2" rel="next">></a></li></ul></div> </div> <div class="block-volume-title normal-text-gray"> <p> Paper Title<span>Page</span> </p> </div> <div class="item-block"> <div class="item-link"> <a href="/MSF.1113.55">Electrochemical Characterization of Battery-Supercapacitor Hybrid Based on Li<sub>4</sub>Ti<sub>5</sub>O<sub>12 </sub>and Ti<sub>3</sub>C<sub>2</sub></a> </div> <div class="item-link volume-authors"> <div class="semibold-middle-text"> Authors: Zi Yu He </div> </div> <div id="abstractTextBlock605021" class="volume-info volume-info-text volume-info-description"> Abstract: Battery-supercapacitor hybrids (BSHs) are promising energy storage devices that exhibit large energy density, high power density. In this research, BSH devices based on Li<sub>4</sub>Ti<sub>5</sub>O<sub>12</sub> and Ti<sub>3</sub>C<sub>2</sub> electrodes are fabricated. Through cyclic voltammetry, it is discovered that the kinetics of charging/discharging are diffusion-controlled. 3D Bode plots and Nyquist Plots indicate that bounded diffusion might occur. Regarding the performance, the 70 wt.% Li<sub>4</sub>Ti<sub>5</sub>O<sub>12</sub>-Ti<sub>3</sub>C<sub>2</sub> BSH shows the most balanced specific energy (9.9 mW∙h/kg) and specific power (3.0 W/kg) at 100 mV/s. The largest specific capacitance of the 70 wt.% Li<sub>4</sub>Ti<sub>5</sub>O<sub>12</sub>-Ti<sub>3</sub>C<sub>2</sub> BSH is 81.6 F/kg at 5 mV/s. </div> <div> <a data-readmore="{ block: '#abstractTextBlock605021', lines: 2, expandText: '...more', collapseText: '...less' }"></a> </div> <div class="page-number semibold-large-text"> 55 </div> </div> <div class="item-block"> <div class="item-link"> <a href="/JNanoR.79.49">The Impact of Mesoporous Silica Nanoparticles on Electrochemical Performance</a> </div> <div class="item-link volume-authors"> <div class="semibold-middle-text"> Authors: Mayetu Segale, Rudzani A. Sigwadi, Touhami Mokrani </div> </div> <div id="abstractTextBlock595988" class="volume-info volume-info-text volume-info-description"> Abstract: Mesoporous silica nanoparticles were synthesized via sol–gel method to produce uniform size nanoparticles using n-Octadecyl-trimethoxy silane which gives a good dispersion of silica nanoparticles in hydrophobic mediums. Scanning electron microscopy (SEM), infrared spectroscopy, X-ray diffraction (XRD), thermal gravimetric analysis, and nitrogen adsorption-desorption tests were used to thoroughly investigate the nanocomposites' morphology and structure. BET results show a high surface are of 760 m<sup>2</sup>/g and specific high pore size (30Ȧ) and pore volume (0.336 cm<sup>3</sup>/g). The SEM results present that the mesoporous silica nanoparticles possess a well dispersed and uniform particle morphology and FTIR interpenetrating the well-prepared silica nanoparticles which possess Si-O-Si and Si-O bond. The XRD analysis confirmed the amorphous nature silica nanoparticles. The electrochemical properties of silica nanoparticles were evaluated in a potassium chloride solution. With the advantages of a large specific surface area and a suitable pore size distribution, a pair of broad and symmetric redox peaks centred at -0.15 V and 0.6 V appears. Mesoporous silica with a large effective specific surface area demonstrated excellent electrochemical performance, making them excellent candidates for supercapacitors and fuel cells. </div> <div> <a data-readmore="{ block: '#abstractTextBlock595988', lines: 2, expandText: '...more', collapseText: '...less' }"></a> </div> <div class="page-number semibold-large-text"> 49 </div> </div> <div class="item-block"> <div class="item-link"> <a href="/AMR.1177.87">Electrochemical High-Performance Hybrid Supercapacitors of Carbon Nanosphere Doped 3D Zr (II) Linked 4-{[(1E)-1-Hydroxy-3-Oxoprop-1-En-2-Yl]Sulfanyl}Benzoic Acid Metal Organic Frameworks</a> </div> <div class="item-link volume-authors"> <div class="semibold-middle-text"> Authors: Santosh Nandi, Vinayak Adimule, Shankramma S. Kerur, Abhinay Gupta, Sateesh Hosmane, Sheetal Batakurki </div> </div> <div id="abstractTextBlock595671" class="volume-info volume-info-text volume-info-description"> Abstract: In the present research work, carbon nanosphere (5 wt. %, 10 wt. % and 15 wt. %)/Zr- based metal organic frame works (CNS: Zr (II)-MOFs) with different molar ratios of the legend 4-{[(1<i>E</i>)-1-Hydroxy-3-Oxoprop-1-En-2-yl] Sulfanyl} Benzoic Acid (HOSBA) have been successfully synthesized by hydrothermal method. Studies using Fourier transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD), scanning electron microscopy (SEM), and thermogravimetric analysis (TGA) have validated certain structural, optical, and morphological features. The supercapacitance performance of the synthesized MOFs was investigated using cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS). At a current density of 0.5 A g<sup>-1</sup> and at a scan rate of 10 mV/s, the 15% CNS doped Zr-MOF demonstrated highest specific capacitance (C<sub>s</sub>) of 239.4 F g<sup>-1</sup>. 15 wt.% CNS doped Zr-MOF proven power density of 2100 W kg<sup>-1</sup> and maximum energy density of 14.82 Wh Kg<sup>-1</sup> with capacitive retention of 77.63 % following 2000 cycles mark this combination a good for supercapacitors (SCs) material. Regardless of the synthetic conditions, we achieved MOFs which exhibited hetero structure formation with spherical morphologies. The results open us new and energy approach for the supercapacitor of the Zr-metal based MOFs and applications in the photonics, optoelectronics, and promising electrode material for electrochemical energy storage systems. </div> <div> <a data-readmore="{ block: '#abstractTextBlock595671', lines: 2, expandText: '...more', collapseText: '...less' }"></a> </div> <div class="page-number semibold-large-text"> 87 </div> </div> <div class="item-block"> <div class="item-link"> <a href="/EC.2.35">Synthesis and Electrochemical Properties of ZnO/ Activated Carbon from Vetiver Distillation Waste</a> </div> <div class="item-link volume-authors"> <div class="semibold-middle-text"> <i class="inline-icon lock-open-red inline-icon-small" title="Open Access"></i> Authors: Rafli Eghbal Haraki, Arenst Andreas Arie, Ratna Frida Susanti, Haryo Satriya Oktaviano, Agung Nugroho </div> </div> <div id="abstractTextBlock592208" class="volume-info volume-info-text volume-info-description"> Abstract: The addition of zinc oxide (ZnO) as impregnation for activated carbon (AC) with the hydrothermal method has been performed in this research. Vetiver distillation waste has been used as a precursor for activated carbon synthesized with pyrolisis methods. Carbon is activated by a chemical process using KOH. Enhancement of amorph structure and function group by addition of zinc oxide has been characterized by Raman Spectroscopy, Fourier Transform Infra-Red (FT-IR), and X-Ray Diffraction (XRD). Furthermore, cyclic voltammetry (CV) and galvanostatic charge-discharge (GCD) has been done to show the electrochemical properties enhancement of the ZnO/AC compared to pristine AC. At the current density of 1 A/g, the specific capacitance of VRW-ACM has a value of 277 F/g. After the impregnation process, the specific capacitance of VRW-ACM-ZnO has been improved by 44.4% compared to VRW-ACM. The result showed that the activated carbon-based vetiver root waste impregnated with ZnO has the potential to be applied as supercapacitors electrodes. </div> <div> <a data-readmore="{ block: '#abstractTextBlock592208', lines: 2, expandText: '...more', collapseText: '...less' }"></a> </div> <div class="page-number semibold-large-text"> 35 </div> </div> <div class="item-block"> <div class="item-link"> <a href="/AEF.45.1">The Effects of Spin-Coating Rate on Surface Roughness, Thickness, and Electrochemical Properties of a Pt Polymer Counter Electrode</a> </div> <div class="item-link volume-authors"> <div class="semibold-middle-text"> Authors: Fadzai Lesley Chawarambwa, Tika Erna Putri, Pankaj Attri, Kunihiro Kamataki, Naho Itagaki, Kazunori Koga, Masaharu Shiratani </div> </div> <div id="abstractTextBlock582934" class="volume-info volume-info-text volume-info-description"> Abstract: In a dye-sensitized solar cell (DSSC) the CE is responsible for the collection of electrons from the external circuit and the electrocatalysis reaction of the electrolyte. This paper reports the effect of spin-coating rate on the surface roughness, film thickness, and electrochemical properties of a Pt polymer counter electrode (CE). In this work, the spin-coating rate has been investigated in the range 1000-6000 rpm and the results indicate that low spin-coating speeds produce the thickest films with the smoothest surfaces, while high spin speeds produce thinner films with higher surface roughness. The thickness of the film decreased from 7.03 μm at 1000 rpm to 1.30 μm at 6000 rpm. Results also indicate a decrease in electrocatalysis properties and conductivity with the increase in film spin-coat rate. The resistance at the CE/electrolyte interface decreased from 9.3 Ω at 1000 rpm to 14.8 Ω at 6000 rpm. The spin-coating rate also affects the light transmittance of the CE and photovoltaic characteristics of the DSSC, such as current density and overall cell conversion efficiency. This study demonstrates a method to develop cost-effective counter electrodes for application in bifacial solar cells. </div> <div> <a data-readmore="{ block: '#abstractTextBlock582934', lines: 2, expandText: '...more', collapseText: '...less' }"></a> </div> <div class="page-number semibold-large-text"> 1 </div> </div> <div class="item-block"> <div class="item-link"> <a href="/KEM.913.45">Inkjet-Printed Three-Electrode System on Flexible Substrate for Low-Cost Electrochemical Analysis</a> </div> <div class="item-link volume-authors"> <div class="semibold-middle-text"> Authors: Jiena Lynne R. Pauco, Erwin P. Enriquez </div> </div> <div id="abstractTextBlock583099" class="volume-info volume-info-text volume-info-description"> Abstract: Inkjet printing (IJP) has emerged as a promising additive manufacturing technique for fabrication of electrodes and sensors due to its cost-effectiveness compared to the traditional techniques, such as screen-printing. In this work, we present a planar, three-electrode system fabricated by inkjet printing on a polyethylene naphthalate (PEN) flexible substrate for rapid voltametric electrochemical analysis. An in-house formulation of aqueous-based gold ink with low temperature-sintering was used in printing the working and counter electrodes. The reference electrode was also inkjet-printed using a commercial silver ink and chlorinated to form an AgCl layer. Cyclic voltammetry studies using the ferri/ferrocyanide redox couple showed that the inkjet-printed electrode system has a comparable electrochemical performance to a commercial screen-printed electrode. Fabrication of a single inkjet-printed electrochemical 3-electrode platform consumes only about 0.5 mg Au and 0.2 mg Ag loading of ink with minimal waste during fabrication because of the additive nature of the printing technique. The 3-electrode platform operates with a microliter sample volume for analysis and can be used in aqueous media without delamination. </div> <div> <a data-readmore="{ block: '#abstractTextBlock583099', lines: 2, expandText: '...more', collapseText: '...less' }"></a> </div> <div class="page-number semibold-large-text"> 45 </div> </div> <div class="item-block"> <div class="item-link"> <a href="/AMR.1168.35">Performances of Carbon Black-Titanium nitrate and Carbon Black-Titanium/Triton X-100 Composite Polymer Counter Electrodes for Dye-Sensitized Solar Cells</a> </div> <div class="item-link volume-authors"> <div class="semibold-middle-text"> Authors: Fadzai Lesley Chawarambwa, Tika Erna Putri, Pankaj Attri, Kunihiro Kamataki, Naho Itagaki, Kazunori Koga, Masaharu Shiratani </div> </div> <div id="abstractTextBlock582455" class="volume-info volume-info-text volume-info-description"> Abstract: The development of platinum-free counter electrodes (CEs) is significant in the development of cost-effective dye-sensitized solar cells (DSSCs). In this study, Pt-free, low-cost carbon black-titanium nitrate (CB-TiN) nanocomposite counter electrodes CEs were prepared via simple heating and cooling process for application in DSSCs. Different weight concentrations of CB-TiN (15-200 mg) were uniformly blended with PEDOT:PSS at 350 rpm and 150°C for 10 mins. Thereafter, the solution mixtures were immediately cooled at 4°C overnight to produce PEDOT:PSS/CB-TiN CEs. Further, to investigate the effects of iso-octyphenoxy-polyethoxyethanol (TX100) on the performance of the PEDOT:PSS/CB-TIN CE, various concentrations of TX100 (1-10%) were blended with PEDOT:PSS/15mgCB-TiN CE mixture at room temperature to produce PEDOT:PSS/15mgCB-TiN/TX100 CEs. The results indicated a gradual increase in electrocatalytic activity coupled with a reduction in internal resistance in the DSSCs as the weight of CB-TiN nanoparticles was enhanced. Similar results were obtained when the concentration of TX100 was increased. The DSSCs with the PEDOT:PSS/200mgCB-TiN and PEDOT:PSS/15mgCB-TiN/10%TX100 CEs exhibited optimum performances of 4.42% and 4.32%, respectively. Their performance closely matches that of the Pt CE (4.43%). </div> <div> <a data-readmore="{ block: '#abstractTextBlock582455', lines: 2, expandText: '...more', collapseText: '...less' }"></a> </div> <div class="page-number semibold-large-text"> 35 </div> </div> <div class="item-block"> <div class="item-link"> <a href="/KEM.884.423">Surface-Modified Carbon Synthesized from Palm Kernel Shell for Electric Double-Layer Capacitor Applications</a> </div> <div class="item-link volume-authors"> <div class="semibold-middle-text"> Authors: Muhammad Iqbal Al Fuady, Rochmadi Rochmadi, Imam Prasetyo, Teguh Ariyanto </div> </div> <div id="abstractTextBlock561775" class="volume-info volume-info-text volume-info-description"> Abstract: This research was conducted to study changes in functional groups after oxidation of porous carbon synthesized from palm kernel shell and their effects on the performance of material for an electric double-layer capacitor (EDLC). Porous carbon was prepared by pyrolysis of palm kernel shell at a temperature of 800 °C and steam activation. Surface modification was conducted by oxidation porous carbon using hydrogen peroxide (H<sub>2</sub>O<sub>2</sub>). Properties of material were characterized using N<sub>2</sub>-sorption analysis, scanning electron microscopy (SEM), and Fourier transforms infrared spectroscopy (FTIR) analysis. Measurement of biomass-based porous carbon as an electrode for EDLC was carried out using cyclic voltammetry and galvanostatic charge-discharge methods. The test was conducted using a three-electrode system, with carbon as the working electrode, Ag/AgCl as the reference electrode, Pt as the auxiliary electrode. The electrolyte used was 1 M H<sub>2</sub>SO<sub>4</sub> solution. The results showed that oxidation of porous carbon using H<sub>2</sub>O<sub>2</sub> lowers the specific surface area but increases oxygen functional groups in the carbon surface. The results on testing the performance of EDLC, surface-modified carbon showed better EDLC performance of 5-7 times higher compared to carbon before oxidation. </div> <div> <a data-readmore="{ block: '#abstractTextBlock561775', lines: 2, expandText: '...more', collapseText: '...less' }"></a> </div> <div class="page-number semibold-large-text"> 423 </div> </div> <div class="item-block"> <div class="item-link"> <a href="/KEM.882.143">Laser Photocatalysis of the Chlorophyll Dye Using the Cyclic Voltammetry Method</a> </div> <div class="item-link volume-authors"> <div class="semibold-middle-text"> Authors: Huda S. Alhasan </div> </div> <div id="abstractTextBlock564525" class="volume-info volume-info-text volume-info-description"> Abstract: Cyclic voltammetry is a widely used technique in electrochemistry due to its simplicity and large amount of data and information that can be obtained. This study utilises this technique to study chlorophyll a and total chlorophyll (Tchl) alongside a laser light to induce photosynthesis. No oxidative peak was observed, regardless of the solution pH in either a dark or light environment when using a solution with an electrolyte of tetrabutylammonium perchlorate (TBAP) in both dichloromethane (DCM) and acetonitrile (MeCN), whereas in a solution of aqueous HCl a small anodic peak was observed. The concentration of the droplet of Tchl pigment on the surface of macro glassy carbon electrode (GCE) was increased, which resulted in a similar trend and the oxidation peak was observed to be slightly larger when in the presence of light. It was observed that the filtered solution of Tchl pigment produced a weaker signal than the unfiltered solution and there were slightly reduced oxidative peak currents when the concentration of VK<sub>1</sub> was increased. were no observed changes in the peak charges or currents over a wide potential range (0.0, 0.2, 0.4, 0.6 and 0.8 V) in the presence or absence of light by using coulometry and amperometry methods, therefore, more information on the 3-D formation is required for the photoreduction processes. </div> <div> <a data-readmore="{ block: '#abstractTextBlock564525', lines: 2, expandText: '...more', collapseText: '...less' }"></a> </div> <div class="page-number semibold-large-text"> 143 </div> </div> <div class="item-block"> <div class="item-link"> <a href="/MSF.1025.20">Electrochemical Characterization of Graphite-Zero-Valent Iron for 3-Monochloropropane-1,2-Diol (3-MCPD) Detection</a> </div> <div class="item-link volume-authors"> <div class="semibold-middle-text"> Authors: Farrah Aida Arris, Wan Nabilah Manan, Hatika Kaco, Ahmad Hakimi Shaffie, Mohd Shaiful Sajab </div> </div> <div id="abstractTextBlock565384" class="volume-info volume-info-text volume-info-description"> Abstract: This study aims to investigate the feasibility of modifying graphite electrode with zero-valent iron (ZVI) to electrochemically detect the presence of 3-MCPD using two (2) deposition methods, namely dip coating and drop casting. Both methods were tested against <i>in situ</i> and <i>ex situ</i> ZVI formation method. Results showed that <i>ex situ</i> ZVI formation using drop casting method onto graphite electrode showed highest peak current when tested using cyclic voltammetry (CV). Results also showed that the 3-MCPD presence was detected at potential range of-25 mV to 45 mV due to the sudden spike in electrical current when tested using CV mode. The impact of this study is to provide a basis for further investigation of 3-MCPD detection in palm oil using electrochemical method due to its simplicity for the development of a portable, fast and reliable 3-MCPD sensor. </div> <div> <a data-readmore="{ block: '#abstractTextBlock565384', lines: 2, expandText: '...more', collapseText: '...less' }"></a> </div> <div class="page-number semibold-large-text"> 20 </div> </div> <div class="block-bottom-pagination"> <div class="pager-info"> Showing 1 to 10 of 48 Paper Titles </div> <div class="pagination-container"><ul class="pagination"><li class="active"><span>1</span></li><li><a href="/paper-keyword/cyclic-voltammetry/2">2</a></li><li><a href="/paper-keyword/cyclic-voltammetry/3">3</a></li><li><a href="/paper-keyword/cyclic-voltammetry/4">4</a></li><li><a href="/paper-keyword/cyclic-voltammetry/5">5</a></li><li class="PagedList-skipToNext"><a href="/paper-keyword/cyclic-voltammetry/2" rel="next">></a></li></ul></div> </div> </div> </div> </div> </div> </div> <div class="social-icon-popup"> <a href="https://www.facebook.com/Scientific.Net.Ltd/" target="_blank" rel="noopener" title="Scientific.Net"><i class="inline-icon facebook-popup-icon social-icon"></i></a> <a href="https://twitter.com/Scientific_Net/" target="_blank" rel="noopener" title="Scientific.Net"><i class="inline-icon twitter-popup-icon social-icon"></i></a> <a href="https://www.linkedin.com/company/scientificnet/" target="_blank" rel="noopener" title="Scientific.Net"><i class="inline-icon linkedin-popup-icon social-icon"></i></a> </div> </div> <div class="sc-footer"> <div class="footer-fluid"> <div class="container"> <div class="row"> <div class="footer-menu col-md-12 col-sm-12 col-xs-12"> <ul class="list-inline menu-font"> <li><a href="/ForLibraries">For Libraries</a></li> <li><a href="/ForPublication/Paper">For Publication</a></li> <li><a href="/insights" target="_blank">Insights</a></li> <li><a href="/DocuCenter">Downloads</a></li> <li><a href="/Home/AboutUs">About Us</a></li> <li><a href="/PolicyAndEthics/PublishingPolicies">Policy & Ethics</a></li> <li><a href="/Home/Contacts">Contact Us</a></li> <li><a href="/Home/Imprint">Imprint</a></li> <li><a href="/Home/PrivacyPolicy">Privacy Policy</a></li> <li><a href="/Home/Sitemap">Sitemap</a></li> <li><a href="/Conferences">All Conferences</a></li> <li><a href="/special-issues">All Special Issues</a></li> <li><a href="/news/all">All News</a></li> <li><a href="/read-and-publish-agreements">Read & Publish Agreements</a></li> </ul> </div> </div> </div> </div> <div class="line-footer"></div> <div class="footer-fluid"> <div class="container"> <div class="row"> <div class="col-xs-12"> <a href="https://www.facebook.com/Scientific.Net.Ltd/" target="_blank" rel="noopener" title="Scientific.Net"><i class="inline-icon facebook-footer-icon social-icon"></i></a> <a href="https://twitter.com/Scientific_Net/" target="_blank" rel="noopener" title="Scientific.Net"><i class="inline-icon twitter-footer-icon social-icon"></i></a> <a href="https://www.linkedin.com/company/scientificnet/" target="_blank" rel="noopener" title="Scientific.Net"><i class="inline-icon linkedin-footer-icon social-icon"></i></a> </div> </div> </div> </div> <div class="line-footer"></div> <div class="footer-fluid"> <div class="container"> <div class="row"> <div class="col-xs-12 footer-copyright"> <p> © 2024 Trans Tech Publications Ltd. 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