Controlled deposition of Pt on Au nanorods and their catalytic activity towards formic acid oxidation

被引：111

作者：

Wang, Shuangyin ^{[2
]}

Kristian, Noel ^{[2
]}

Jiang, Sanping ^{[1
]}

Wang, Xin ^{[2
]}

机构：

[1] Nanyang Technol Univ, Sch Mech & Aerosp Engn, Singapore 639798, Singapore

[2] Nanyang Technol Univ, Sch Chem & Biomed Engn, Singapore 637457, Singapore

来源：

ELECTROCHEMISTRY COMMUNICATIONS | 2008年 / 10卷 / 07期

关键词：

gold nanorods; platinum; formic acid electrooxidation; fuel cells;

D O I：

10.1016/j.elecom.2008.04.018

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Platinum submonolayer decorated gold nanorods with controlled coverage were prepared by the addition of Au nanorods into the growth solution of Pt in the presence of NH20H - HCI as the growth agent. The properties of Au nanorods decorated by Pt submonolayer were investigated by various techniques including transimission electron microscopy, X-ray diffraction, and electrochemical methods. The Pt decorated Au nanorods on carbon black showed significantly higher activity on formic acid electrooxidation than the conventional Pt/C catalysts. They showed different reaction path of formic acid electrooxidation by suppressing the formation of poisoning intermediate CO. (c) 2008 Elsevier B.V. All rights reserved.

引用

页码：961 / 964

页数：4

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