High performance gold-supported platinum electrocatalyst for oxygen reduction

被引：83

作者：

Van Brussel, M

Kokkinidis, G

Vandendael, I

Buess-Herman, C

机构：

[1] Free Univ Brussels, Fac Sci, Serv Chim Analyt & Chim Interfaces, B-1050 Brussels, Belgium

[2] Free Univ Brussels, Dept Met Electrochem & Mat Sci, B-1050 Brussels, Belgium

来源：

ELECTROCHEMISTRY COMMUNICATIONS | 2002年 / 4卷 / 10期

关键词：

Au substrate; copper electrodeposition; displacement deposition; platinum; oxygen reduction; catalytic activity;

D O I：

10.1016/S1388-2481(02)00437-X

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

High performance gold-supported Pt electrocatalyst for the reduction of oxygen was prepared by replacing Cu adlayers, deposited potentiostatically on An, with Pt at open-circuit potential in a 0.1 M HCl solution containing K2PtCl6. Auger Electron Spectroscopy and Atomic Force Microscopy reveal the surface modification. The kinetics of oxygen reduction on this platinum modified electrode was studied by the rotating-disc electrode technique. The activity of the electrode is lower than the activity of a smooth Pt electrode in the negative potential scan, but it is significantly higher in the positive scan. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：808 / 813

页数：6

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