An Electrocatalyst for Methanol Oxidation in DMFC: PtBi/XC-72 with Pt Solid-Solution Structure

被引：19

作者：

Li, Xiang ^{[1
]}

Chen, Ge ^{[1
]}

Xie, Jia ^{[1
]}

Zhang, Lijuan ^{[1
]}

Xia, Dingguo ^{[1
]}

Wu, Ziyu ^{[2
]}

机构：

[1] Beijing Univ Technol, Coll Environm & Energy Engn, Beijing 100022, Peoples R China

[2] Univ Sci & Technol China, Natl Synchrotron Radiat Lab, Hefei 230026, Peoples R China

来源：

JOURNAL OF THE ELECTROCHEMICAL SOCIETY | 2010年 / 157卷 / 04期

基金：

北京市自然科学基金;

关键词：

bismuth alloys; catalysts; direct methanol fuel cells; organic compounds; oxidation; platinum alloys; solid solutions; XANES; X-ray diffraction; FUEL-CELL; INTERMETALLIC COMPOUNDS; POLYOL PROCESS; OXYGEN REDUCTION; FORMIC-ACID; NANOPARTICLES; CATALYSTS; SURFACE; PTBI; ELECTROOXIDATION;

D O I：

10.1149/1.3309725

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The electrocatalyst PtBi with a Pt solid-solution phase has been synthesized using sodium hypophosphite as a reducing agent. The results of X-ray diffraction and X-ray absorption near-edge spectroscopy showed that in the presence of P, the Pt-Bi system forms an alloy with a Pt face-centered cubic solid-solution phase structure. Electrochemical test results revealed that PtBi/XC-72 exhibited a good electrocatalytic activity in the oxidation of methanol.

引用

页码：B580 / B584

页数：5

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