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首页> 外文期刊>Electrocatalysis >Carbon-Supported Silver as Cathode Electrocatalyst for Alkaline Polymer Electrolyte Membrane Fuel Cells
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Carbon-Supported Silver as Cathode Electrocatalyst for Alkaline Polymer Electrolyte Membrane Fuel Cells

机译：碳载银作为碱性聚合物电解质膜燃料电池的阴极电催化剂

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摘要

Carbon-supported silver in varying percentage viz. 40%, 60%, and 80% (Ag/C) is prepared by sodium citrate protecting method. The structure, dispersion, electrochemical characterization, and surface area and oxygen reduction reaction pathway of Ag/C are determined by XRD, TEM, CV, and LSV, respectively. The catalyst is evaluated for its electrocatalytic activity towards oxygen reduction reaction (ORR) in alkaline polymer electrolyte membrane fuel cells (APEMFCs); 60% Ag/C gives higher performance than 40%, and 80% Ag/C. Metal loading on cathode is optimized through the cell polarization studies using 60% Ag/C. A peak power density of 10 mW/cm2 is obtained for APEMFC single cell comprising 60% Ag/C and 38% Pt/C as cathode and anode catalysts, respectively.
机译：碳负载的银的百分比不同。通过柠檬酸钠保护法制得40％，60％和80％（Ag / C）。 Ag / C的结构，分散，电化学特性，表面积和氧还原反应途径分别通过XRD，TEM，CV和LSV确定。评价该催化剂在碱性聚合物电解质膜燃料电池（APEMFC）中对氧还原反应（ORR）的电催化活性; 60％的银/碳比40％和80％的银/碳具有更高的性能。通过使用60％Ag / C的电池极化研究可以优化阴极上的金属负载。对于分别包含60％Ag / C和38％Pt / C作为阴极和阳极催化剂的APEMFC单电池，获得的峰值功率密度为10 mW / cm2。

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