Ternary non-noble metal chalcogenide (W-Co-Se) as electrocatalyst for oxygen reduction reaction

被引：62

作者：

Lee, Kunchan ^{[1
]}

Zhang, Lei ^{[1
]}

Zhang, Jiujun ^{[1
]}

机构：

[1] Natl Res Council Canada, Inst Fuel Cell Innovat, Vancouver, BC V6T 1W5, Canada

来源：

ELECTROCHEMISTRY COMMUNICATIONS | 2007年 / 9卷 / 07期

关键词：

oxygen reduction reaction (ORR); non-noble metal catalyst; chalcogenide; polymer electrolyte fuel cell (PEM);

D O I：

10.1016/j.elecom.2007.03.025

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

In this study, a catalyst based on a novel ternary non-noble metal chalcogenide, W-Co-Se, was synthesized for the oxygen reduction reaction (ORR) in acidic medium. The non-noble metal chalcogenide catalyst was electrochemically stable in the potential range of 0.050.8 V versus NHE in 0.5 M H2SO4 aqueous solution. This catalyst demonstrated significant catalytic activity towards the ORR, showing the ORR onset potential at 0.755 V versus NHE in 0.5 M H2SO4 at 25 C. Such high activity might be attributed to the electronic structure of non-noble metals modified by chalcogen. (C) 2007 Elsevier B.V. All rights reserved.

引用

页码：1704 / 1708

页数：5