RRDE study of oxygen reduction on Pt nanoparticles inside Nafion®:: H2O2 production in PEMFC cathode conditions

被引：203

作者：

Antoine, O ^{[1
]}

Durand, R ^{[1
]}

机构：

[1] Ecole Natl Super Electrochim & Electrome Grenoble, Inst Natl Polytech Grenoble, CNRS,UMR 5631,UJF, Lab Electrochim & Physicochim Mat & Interfaces, F-38402 St Martin Dheres, France

来源：

JOURNAL OF APPLIED ELECTROCHEMISTRY | 2000年 / 30卷 / 07期

关键词：

dihydrogen peroxide; nanoparticle; oxygen reduction reaction; platinum; rotating ring-disc electrode; size effect;

D O I：

10.1023/A:1003999818560

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Dihydrogen peroxide production on platinum particles supported on carbon inside a proton exchange membrane (Nafion(R)), that is, under the working conditions of PEMFC cathodes, is rather small at the usual oxygen reduction potentials. As on bulk platinum, a four-electron mechanism appears to be the main pathway, with particle size and carbon substrate effects on the H2O2 production. A large increase in the H2O2 contribution takes place at low potentials, that is, at the working potentials of PEMFC anodes.

引用

页码：839 / 844

页数：6

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