Effect of partial substitution on hydrogen storage properties of Mg2Ni alloy

被引：110

作者：

Kohno, T

Kanda, M

机构：

[1] Toshiba Corporation, Materials and Devices Laboratories, Saiwai-ku, Kawasaki 210

来源：

JOURNAL OF THE ELECTROCHEMICAL SOCIETY | 1997年 / 144卷 / 07期

关键词：

D O I：

10.1149/1.1837823

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The effect of partial substitution on the hydrogen storage properties of Mg2Ni was investigated. It was found that as a result of substitution of Mg with a more electronegative element (Al or Mn), absorption of hydrogen easily occurs at lower temperature. The alloy powder prepared with a mechanical grinding method was also studied. This alloy powder was found to be mainly changed to an amorphous-like state by this treatment. Consequently, the negative electrode of the mechanically ground Mg2Ni alloy shows a large discharge capacity, 750 mAh/g, which is two and one-half times that of AB(5) type alloys. It was also found that the hydrogen reversibility of the mechanically ground Mg(1.0)A(0.1)Ni alloy electrode remarkably increased.

引用

页码：2384 / 2388

页数：5

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