Carbon-supported Pt-Co alloy nanoparticles for oxygen reduction reaction

被引：120

作者：

Huang, Qinghong

Yang, Hui

Tang, Yawen

Lu, Tianhong

Akins, Daniel L.

机构：

[1] Chinese Acad Sci, Shanghai Inst Microsyst & Informat Technol, Nanotechnol Lab, Shanghai 200050, Peoples R China

[2] Nanjing Normal Univ, Dept Chem, Nanjing 210097, Peoples R China

[3] CUNY City Coll, CASI, New York, NY 10031 USA

[4] CUNY City Coll, Dept Chem, New York, NY 10031 USA

来源：

ELECTROCHEMISTRY COMMUNICATIONS | 2006年 / 8卷 / 08期

基金：

中国国家自然科学基金;

关键词：

oxygen reduction reaction; Pt-Co alloy; electrocatalysis; nanoparticle;

D O I：

10.1016/j.elecom.2006.05.027

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The oxygen reduction reaction (ORR) on carbon-supported Pt-Co alloy nanoparticles has been investigated. As-prepared Pt-Co alloy nanoparticles exhibit a single-phase disordered structure and have a very small particle size. Such alloy catalysts exhibit an enhancement of a factor of ca. 1.3-3.2 in Pt mass activity and of a factor of ca. 1.2-2.2 in the specific activity for the ORR when compared to Pt/C catalyst. The enhanced electrocatalytic activity is attributed to the favorable Pt-Pt mean interatomic distance caused by alloying and to the high dispersion of the alloy catalysts. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：1220 / 1224

页数：5

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