Enhanced formic acid oxidation on Cu-Pd nanoparticles

被引：83

作者：

Dai, Lin ^{[1
]}

Zou, Shouzhong ^{[1
]}

机构：

[1] Miami Univ, Dept Chem & Biochem, Oxford, OH 45056 USA

来源：

JOURNAL OF POWER SOURCES | 2011年 / 196卷 / 22期

关键词：

Copper-palladium alloy nanoparticles; Formic acid oxidation; Electrocatalysts; Fuel cells; NOBLE-METAL ELECTRODES; PALLADIUM NANOPARTICLES; OXYGEN REDUCTION; FUEL-CELLS; ELECTROOXIDATION; CATALYSTS; METHANOL; CO; MECHANISM; PLATINUM;

D O I：

10.1016/j.jpowsour.2011.08.004

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Developing catalysts with high activity and high resistance to surface poisoning remains a challenge in direct formic acid fuel cell research. In this work, copper-palladium nanoparticles were formed through a galvanic replacement process. After electrochemically selective dissolution of surface Cu, Pd-enriched Cu-Pd nanoparticles were formed. These particles exhibit much higher formic acid oxidation activities than that on pure Pd nanoparticles, and they are much more resistant to the surface poisoning. Possible mechanisms of catalytic activity enhancement are briefly discussed. (C) 2011 Elsevier B.V. All rights reserved.

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页码：9369 / 9372

页数：4

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