Preparation and hydrogenation characteristics of Mg-30 wt.% Ti37.5V25Cr37.5 composite

被引：22

作者：

Hu, YQ ^{[1
]}

Yan, C

Zhang, HF

Ye, L

Hu, ZQ

机构：

[1] Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China

[2] Univ Sydney, Sch Aerosp Mech & Mechatr Engn, Ctr Adv Mat Technol, Sydney, NSW 2006, Australia

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2004年 / 375卷 / 1-2期

关键词：

Mg-based alloys; hydrogen storage materials; reactive ball milling; catalyst; absorption kinetics; hydrogen absorbing materials; metal hybrides; mechanochernical processing; gas-solid reactions;

D O I：

10.1016/j.jallcom.2003.11.046

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：

A Mg-30 wt.% Ti37.5V25Cr37.5 hydrogen storage composite was successfully synthesized by reactive mechanical milling of a mixture of magnesium and Ti37.5V25Cr37.5 powder in a hydrogen atmosphere. The structural evolution during milling and after hydrogen absorption/desorption cycling was analyzed using XRD. The absorption/desorption rates and storage capacity at different temperatures were evaluated. By analyzing the variation of the Avrami exponent, the hydrogenation mechanisms during milling process were also estimated. A large hydrogen storage capacity and excellent absorption/desorption kinetics were achieved in this composite. (C) 2003 Published by Elsevier B.V.

引用

页码：265 / 269

页数：5

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