High active PtAu/C catalyst with core-shell structure for oxygen reduction reaction

被引：67

作者：

Ma, Yuanwei ^{[1
,2
]}

Zhang, Huamin ^{[1
]}

Zhong, Hexiang ^{[1
]}

Xu, Ting ^{[1
,2
]}

Jin, Hong ^{[1
,2
]}

Geng, Xiaoying ^{[1
,2
]}

机构：

[1] Chinese Acad Sci, Dalian Inst Chem Phys, PEMFC Key Mat & Technol Lab, Dalian 116023, Peoples R China

[2] Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China

来源：

CATALYSIS COMMUNICATIONS | 2010年 / 11卷 / 05期

基金：

国家高技术研究发展计划(863计划);

关键词：

PEM fuel cells; Oxygen reduction reaction; Low-Pt catalyst; Core-shell structure; PEM FUEL-CELLS; SURFACE-COMPOSITION; ELECTROCATALYST; STABILITY; THICKNESS; CATHODE;

D O I：

10.1016/j.catcom.2009.11.017

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Ultra-low Pt catalysts with Pt-shell-Au-core nanostructure were prepared by seed mediate method for oxygen reduction reaction (ORR). The as-prepared catalysts were characterized by transmission electron microscopy (TEM) and UV-Vis measurements. The ORR activities of the catalysts were studied by electrochemical measurements and single cell tests, respectively. The results indicate that the PtAu/C (Pt: Au = 3:2, Pt + Au = 4 wt.%) catalyst exhibits the core-shell nanostructure and attractive catalytic activity in both electrochemical test and single cell test. The Pt-shell-Au-core nanostructure is promising for application to lower the cost of PEMFCs. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：434 / 437

页数：4

共 24 条

[1] Investigation of Pt-Fe catalysts for oxygen reduction in low temperature direct methanol fuel cells [J].