Modification of a rapidly solidified hydrogen storage electrode alloy by ball-milling with Co3Mo

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	Modification of a rapidly solidified hydrogen storage electrode alloy by ball-milling with Co3Mo
	K. Yang; D. M. Chen; L. A. Chen; H. F. Zhang; W. S. Sun; Y. Y. Li
	1999
发表期刊	Journal of Alloys and Compounds
ISSN	0925-8388
卷号	293 页码:670-674
摘要	Rapidly solidified hydrogen storage alloys were reported to have good cycle life, but they are very difficult to activate, especially for AB(2) type alloys. In this study, a Zr0.9Ti0.1 (Ni0.57V0.1Mn0.28Co0.05)(2.1) alloy was prepared by melt-spinning followed by ball-milling with Co3Mo additive in order to improve its kinetic characteristics. The experimental results showed that the alloy exhibited a much improved activation performance as well as electrochemical capacity after 2 hours milling. Cyclic voltammetry and electrochemical impedance experiments also showed that ball-milling of the alloy with Co3Mo could improve the surface activation property to a great extent. This can be attributed to the catalytic effect of Co3Mo, which had a much closer contact to the alloy powders after ball-milling, on the hydrogen oxidation. However, long time milling could decrease the capacity gradually due to the further amorphization of the ahoy. (C) 1999 Published by Elsevier Science S.A, All rights reserved.
部门归属	chinese acad sci, inst met res, state key lab rapidly solidified nonequilibrium a, shenyang 110015, peoples r china.;yang, k (reprint author), chinese acad sci, inst met res, state key lab rapidly solidified nonequilibrium a, shenyang 110015, peoples r china
关键词	Metal-hydride Electrodes Ni-mh Batteries Ball-milling Treatment Metal Hydride Battery Powder
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WOS记录号	WOS:000084065500124
引用统计	被引频次：6[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/37546
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	K. Yang,D. M. Chen,L. A. Chen,et al. Modification of a rapidly solidified hydrogen storage electrode alloy by ball-milling with Co3Mo[J]. Journal of Alloys and Compounds,1999,293:670-674.
APA	K. Yang,D. M. Chen,L. A. Chen,H. F. Zhang,W. S. Sun,&Y. Y. Li.(1999).Modification of a rapidly solidified hydrogen storage electrode alloy by ball-milling with Co3Mo.Journal of Alloys and Compounds,293,670-674.
MLA	K. Yang,et al."Modification of a rapidly solidified hydrogen storage electrode alloy by ball-milling with Co3Mo".Journal of Alloys and Compounds 293(1999):670-674.