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

被引：119
|
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
收藏
页码：1220 / 1224
页数：5
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