Structure and Hydrogen Storage Properties of LaNi3.5 Alloy

被引：0

作者：

Chai Yujun ^{[1
]}

Wang Ning ^{[1
]}

机构：

[1] Hebei Normal Univ, Coll Chem & Mat Sci, Shijiazhuang 050016, Peoples R China

来源：

RARE METAL MATERIALS AND ENGINEERING | 2010年 / 39卷

关键词：

alloy; hydrogen storage property; Ce2Ni7; ELECTROCHEMICAL PROPERTIES; ELECTRODES; NI; HYDRIDES; SYSTEM; R=LA; CE;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

LaNi3.5 alloy was prepared by arc melting method in Ar atmosphere and then annealed at 950 degrees C for 6 h and 24 h in vacuum. It was characterized by XRD, SEM, PCT and in-situ XRD. The results show that other phase besides except Ce2Ni7 phase in the as-prepared. After annealing, the alloy was homogeneous and the content of Ce2Ni7 phase increased. The hydrogen absorption was similar to 0.35 HIM under a hydrogen pressure of 3 MPa at 60 degrees C and no obvious flat plateau was observed in the first hydrogen absorption process. In-situ XRD results show that Ce2Ni7 phase presented obvious anisotropic expansion after hydrogenation.

引用

页码：24 / 26

页数：3

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