CNT-based electrodes with high efficiency for PEMFCs

被引：124

作者：

Wang, X ^{[1
]}

Waje, M

Yan, YS

机构：

[1] Univ Calif Riverside, Dept Chem & Environm Engn, Coll Engn, Riverside, CA 92521 USA

[2] Univ Calif Riverside, Ctr Environm Res & Technol, Coll Engn, Riverside, CA 92521 USA

来源：

ELECTROCHEMICAL AND SOLID STATE LETTERS | 2005年 / 8卷 / 01期

关键词：

D O I：

10.1149/1.1830397

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

A highly efficient fuel cell electrode structure based on carbon nanotubes (CNTs) is demonstrated. The CNTs were grown on carbon paper by chemical vapor deposition using electrodeposited Co/Ni catalyst. Pt was subsequently deposited by spraying of Pt precursor on CNTs followed by in situ reduction in hydrogen. Cyclic voltammograms show a significant improvement in the Pt utilization in the CNT-based electrode over conventional electrode (58% vs. 34%). Higher membrane electrode assembly performance was observed for CNT-based electrode with a maximum power density of 623 mW cm(-2) at Pt loading of 0.15 mg/cm(2), 70 degrees C and 3 atm. (C) 2004 The Electrochemical Society.

引用

页码：A42 / A44

页数：3

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