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Showing 1 to 7 of 7 for “"Pt/C catalyst"”.
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Conductive Si doped metal oxide fuel cell catalyst supports: understanding the role of Si content
… proton exchange membrane fuel cell (PEMFC) catalysts commonly use platinum supported on carbon (Pt/C) which is susceptible to corrosion, thus a highly conductive and stable Ti3O5 doped by Si (TOS) conductive metal oxide catalyst support is reported. The TOS support was optimized for 20 wt% …
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Evaluation of TiO2 as a Pt-Catalyst Support in a Direct Ethanol Fuel Cell
… of ethanol. Difficulties lie in finding a catalyst that can completely oxidize ethanol and resist poisoning by intermediate reaction species. Degradation of the catalyst layer over time is also an issue that needs to be addressed. In this work, niobium doped-titanium dioxide (Nb-TiO2) is …
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Understanding the carbon morphology in sulfonated-silica ceramic carbon electrodes for the PEM fuel cell device
… the fuel cell is the use of the precious metal Pt within the catalyst layer. Efforts in decreasing the amount of Pt has provided information on improved utilization of the catalytic metal. Another limitation can be attributed to the perfluorosulfonated ionomer Nafion®, that is commercially …
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Fundamental understanding and design principles of oxide/metal surfaces for lithium storage
… and cell efficiency. The reaction kinetics, catalyst effects and reaction mechanism of Li-O2 batteries were investigated by developing electrochemical model systems i.e., rotating disk electrode and Li2O2-filled composite electrodes, to quantify the intrinsic catalytic activity of nonaqueous …
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In-situ investigation and mitigation of carbon support corrosion of cathode catalyst in PEM fuel cells
… is one of the key factors causing cathode electrocatalyst (Pt/C) degradation in proton exchange membrane fuel cells (PEMFC). It is electrochemical oxidation and thus needs to be investigated in-situ with potential imposed. CSC was characterized in-situ and correlated to the Pt redox reactions and …
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So<sub>2</sub> Adsorption On Carbon-Supported Pt Electrocatalyst
… showed that the primary accumulation was on the Pt/C electrocatalysts. Therefore, adsorption isotherms were obtained for SO<sub>2</sub> on Pt/C electrocatalysts.</p> <p>Accumulations are quantified with material balances on the inlet and the outlet SO<sub>2</sub> stream during OCV. SO<sub>2</sub> …
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SYNTHESIS AND CHARACTERIZATION OF NEW ELECTROCATALYTIC MATERIALS TO IMPROVE THE PERFORMANCE, OPERABILITY AND LIFE-TIME OF PEMFCS
… of catalytic activity and durability of catalysts represents one of the most important issues in fuel cell technology. To increase the performace and decrease the load of the catalysts, materials with high surface area and pore volume, commonly carbons, are widely used as catalyst …