Electrooxidation of methanol and formic acid on PtCu nanoparticles

被引：126

作者：

Yang, Hongzhou ^{[1
]}

Dai, Lin ^{[1
]}

Xu, Dan ^{[2
]}

Fang, Jiye ^{[2
]}

Zou, Shouzhong ^{[1
]}

机构：

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

[2] SUNY Binghamton, Dept Chem, Binghamton, NY 13902 USA

来源：

ELECTROCHIMICA ACTA | 2010年 / 55卷 / 27期

关键词：

Electrooxidation; PtCu alloy; Formic acid; Methanol; Fuel cell; WALLED CARBON NANOTUBES; ELECTROCATALYTIC OXIDATION; ALLOY NANOPARTICLES; CATALYTIC-ACTIVITY; PLATINUM; ELECTRODES; NI; CO; NANOCRYSTALS; PATHWAYS;

D O I：

10.1016/j.electacta.2010.03.026

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

070208 [无线电物理];

摘要：

Improving the catalytic activity of the anode catalyst is an important task in direct methanol and formic acid fuel cell development In the present work catalytic activity of shape-controlled PtCu nanoparticles toward methanol and formic acid oxidation was investigated The results show that the addition of Cu to Pt increases the catalytic activity of both reactions In addition the shape of PtCu nanoparticles plays an important role on improving the reactivity of both reactions Cubic PtCu nanoparticles are more active for methanol oxidation while spheres are better for formic acid oxidation The present study demonstrates controlling shape of Pt alloy catalysts is an effective way of improving catalytic activity Likely mechanisms of the activity enhancement are briefly discussed (C) 2010 Elsevier Ltd All rights reserved

引用

页码：8000 / 8004

页数：5

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