Influence of the boron additive on the electrochemical properties of the MmNi3.55Co0.75Mn0.4Al0.3 hydrogen storage alloy

被引：15
|
作者：
Ye, H [1 ]
Huang, YX [1 ]
Huang, TS [1 ]
Zhang, H [1 ]
机构：
[1] Chinese Acad Sci, Shanghai Inst Met, Div Energy Sci & Technol, Shanghai 200050, Peoples R China
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2002年 / 330卷
关键词：
hydrogen storage materials; electrochemical performance; high rate capability; electrochemical impedance spectroscopy;
D O I：
10.1016/S0925-8388(01)01484-0
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 MmNi(3.55)Co(0.75)Mn(0.4)Al(0.3)B(x) hydrogen storage alloys with various boron contents of x = 0, 0.05, 0.1, 0.21, 0.3 were prepared by a radio frequency levitation melting process. The electrochemical kinetics such as linear polarization, electrochemical impedance spectroscopy and anodic polarization were investigated. Such experimental results showed that the addition of boron could enhance the activation performance and the rate capability. With the increase of boron additive such a favorable effect became more pronounced. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：866 / 870
页数：5
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