Electrocatalytic abilities of hydrogen storage alloy as anode electrocatalyst of alkaline fuel cell

被引：12

作者：

Chen, Y

Sequeira, C

Allen, T

Chen, CP ^{[1
]}

机构：

[1] Zhejiang Univ, Dept Mat Sci & Engn, Hangzhou 310027, Peoples R China

[2] Inst Super Tecn, Dept Chem Engn, P-1049001 Lisbon, Portugal

[3] Univ Wisconsin, Dept Engn Phys, Madison, WI 53706 USA

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2005年 / 404卷

关键词：

hydrogen storage alloy; alkaline fuel cell; anode; electrocatalytic ability; surface modification;

D O I：

10.1016/j.jallcom.2005.01.112

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：

The electrocatalytic abilities of hydrogen storage alloy (HSA)MlNi(3.65)Co(0.85)Al(0.3)Mn(0.3) (Ml: La-rich mischmetal) as the anode electrocatalyst of an alkaline fuel cell were studied. To improve the electrocatalytic activity of the alloy, modifications including ball-milling, surface treatment and chemical coating with Pd were employed. The electrocatalytic ability of the optimized HSA anode was found to be reasonably good, with a current density of 50 mA/cm(2) at 0.866 V and 196.2 mA/cm(2) at 0.5 V (versus Hg/HgO). The temperature was also found to be important for the electrocatalytic behavior of HSA anode. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：661 / 664

页数：4

共 4 条

[1] Rare-earth-based AB5-type hydrogen storage alloys as hydrogen electrode catalysts in alkaline fuel cells [J].