Novel carbon supported hollow Pt nanospheres for methanol electrooxidation

被引：41
|
作者：
Zhao, Jie
Chen, Weixiang [1 ]
Zheng, Yifan
Li, Xiang
机构：
[1] Zhejiang Univ Technol, Dept Chem, Hangzhou 310027, Peoples R China
[2] Zhejiang Univ Technol, Coll Chem & Mat Engn, Hangzhou 310032, Peoples R China
来源：
JOURNAL OF POWER SOURCES | 2006年 / 162卷 / 01期
基金：
高等学校博士学科点专项科研基金;
关键词：
Pt nanospheres; hollow; methanol oxidation; electrocatalyst;
D O I：
10.1016/j.jpowsour.2006.06.090
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：
A carbon supported hollow Pt nanosphere electrocatalyst was prepared at room temperature in a homogeneous solution employing cobalt metal nanoparticles as sacrificial templates. TEM measurements showed that carbon supported Pt nanospheres were coreless and composed of discrete Pt nanoparticles with the crystallite size of about 2.2 +/- 0.2 nm. XRD results showed that the hollow Pt nanospheres had a face-centered cubic structure. Electrochemical measurements demonstrated that the carbon supported hollow Pt nanosphere electrocatalyst exhibited enhanced electrocatalytic performance for methanol oxidation compared with carbon supported solid Pt nanoparticles. (c) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码：168 / 172
页数：5
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