Preparation and hydrogen storage properties of Mg1-xNix(x=0-45 wt.%) composites

被引：12
|
作者：
Yang, J [1 ]
Ciureanu, M [1 ]
Roberge, R [1 ]
机构：
[1] H Power Enterprises Canada Inc, St Laurent, PQ H4R 1V8, Canada
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 1999年 / 287卷 / 1-2期
关键词：
ball milling; annealing; hydrogen storage; Mg-Mg2Ni composite;
D O I：
10.1016/S0925-8388(99)00049-3
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：
Mg-Ni composite hydrogen storage materials have been prepared by high energy ball milling Mg and Ni powders and annealing in hydrogen atmosphere forming Mg2Ni catalytic phase. Mg65Ni35 (wt%) alloy can desorb 3.4 wt% H-2 at 290 degrees C and 4.8 wt% H-2 at 305 degrees C in 40 min. The improved desorption properties are attributed to the homogeneous distribution of nanocrystalline Mig and Mg2Ni phases. The structure and storage properties are not changed through 150 cycles of absorbtion at 300 degrees C and desorption at 305 degrees C. (C) 1999 Elsevier Science S.A. All rights reserved.
引用
收藏
页码：251 / 255
页数：5
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