Activity and Durability of Ternary PtRuIr/C for Methanol Electro-oxidation

被引：33

作者：

Geng, Dongsheng ^{[1
]}

Matsuki, Daisuke ^{[1
]}

Wang, Jiajia ^{[1
]}

Kawaguchi, Tomoyuki ^{[1
]}

Sugimoto, Wataru ^{[1
]}

Takasu, Yoshio ^{[1
]}

机构：

[1] Shinshu Univ, Fac Text Sci & Technol, Dept Fine Mat Engn, Nagano 3868567, Japan

来源：

JOURNAL OF THE ELECTROCHEMICAL SOCIETY | 2009年 / 156卷 / 03期

关键词：

TEMPERATURE FUEL-CELLS; ELECTROCATALYTIC OXIDATION; ALLOY NANOPARTICLES; ORGANIC-MOLECULES; ANODE CATALYST; RU; PLATINUM; CO; BINARY; PERFORMANCE;

D O I：

10.1149/1.3060111

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Carbon supported Pt1Ru1Irx (0 <= x <= 2) nanoparticles were prepared by it compare nation reductive pyrolysis method and their electrocatalytic activity toward methanol electro-oxidation at 25, 40, and 60 degrees C was investigated. The mass activity (current normalized by the mass of Pt) for methanol electro-oxidation increased as it function of Ir coefficient and cell temperature. Despite the increase in methanol electro-oxidation activity, the addition of Ir does not affect the CO tolerance of the ternary electrocatalyst. The addition of Ir also enhances the durability of the catalyst. The enhancement in activity and durability is discussion based on CO stripping measurements and X-ray photoelectron spectroscopy analysis of the catalysts. (C) 2009 The Electrochemical Society. [DOI: 10.1149/1.3060111] All rights reserved.

引用

页码：B397 / B402

页数：6

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