Hydrogen storage properties of V-Ti-Cr-Fe alloys

被引：0
|
作者：
Yan Yigang [1 ]
Chen Yungui [1 ]
Liang Hao [1 ]
Liang Jie [1 ]
Wu Chaoling [1 ]
机构：
[1] Sichuan Univ, Met Mat Dept, Chengdu 610065, Peoples R China
来源：
RARE METAL MATERIALS AND ENGINEERING | 2006年 / 35卷 / 05期
关键词：
hydrogen storage alloy; V-based solid solution; bcc; hydrogen storage properties;
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The hydrogen storage properties of V-Ti-Cr-Fe alloys with compositions of V(30 at%)-Ti(15 at%similar to 55 at%)-Cr(7 at%similar to 43 at%)Fe(2 at%similar to 18 at%) were studied in this paper. It is found that the hydrogen absorption capacities and the effective hydrogen capacities of the alloys are largely dependent on the Ti/(Cr+Fe) ratio. The alloy shows the largest effective hydrogen capacity at a Ti/(Cr+Fe) ratio of 1.0. With the increase of Ti/(Cr+Fe) ratio (0.9 similar to 1.05), the lattice parameters of the alloys and the enthalpy of hydrides grow, and the hydrogen desorbing plateau pressure declines. The alloy of V30Ti35Cr25Fe10 with 10at% Fe exhibits a hydrogen capacity of 3.6wt% and an effective hydrogen capacity of 2.0wt% at 298 K.
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页码：686 / 689
页数：4
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