Synthesis of Pt-Au/C Composite Catalysts with Different Au Compositions and Their Electrocatalytic Properties for Methanol Oxidation

Jeong-Mo Yoon; Jun-Woo Lee; Hong-Gi Lee; Yeon-Tae Yu

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Synthesis of Pt-Au/C Composite Catalysts with Different Au Compositions and Their Electrocatalytic Properties for Methanol Oxidation

机译：不同Au组成的Pt-Au / C复合催化剂的合成及其对甲醇氧化的电催化性能。

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Carbon-supported Pt-Au/C composite nanoparticles (NPs) catalysts with different composition weresynthesized by a two steps loading method including adsorption of Au colloid and reduction ofH2PtCl6 precursor on carbon black. The effect of Au NPs composition on the electrocatalytic activityof Pt-Au/C composite catalysts was investigated by cyclic voltammetry in a 1 M H2SO4 and 1 MCH3OH aqueous solution. 30Pt-10Au/C composite catalyst showed the highest mass-specific currentdensity. The enhanced electrocatalytic activity of Pt-Au/C catalyst is due to high Pt utilization formethanol oxidation reaction and catalytic effect of Au NPs.

机译：通过两步加载法合成了不同组成的碳载Pt-Au / C复合纳米颗粒（NPs）催化剂，包括吸附金胶体和在炭黑上还原H2PtCl6前驱体。在1 M H2SO4和1 MCH3OH水溶液中，通过循环伏安法研究了Au NPs组成对Pt-Au / C复合催化剂电催化活性的影响。 30Pt-10Au / C复合催化剂的质量比电流密度最高。 Pt-Au / C催化剂增强的电催化活性是由于乙醇氧化反应对Pt的利用率高以及Au NPs的催化作用。

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《International Journal of Electrochemical Science》 |2014年第10期|共9页
作者
Jeong-Mo Yoon; Jun-Woo Lee; Hong-Gi Lee; Yeon-Tae Yu;
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Synthesis of Pt-Au/C Composite Catalysts with Different Au Compositions and Their Electrocatalytic Properties for Methanol Oxidation

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