Preparation and hydriding/dehydriding properties of mechanically milled Mg-30 wt% TiMn1.5 composite

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	Preparation and hydriding/dehydriding properties of mechanically milled Mg-30 wt% TiMn1.5 composite
	Y. Q. Hu; H. F. Zhang; A. M. Wang; B. Z. Ding; Z. Q. Hu
	2003
发表期刊	Journal of Alloys and Compounds
ISSN	0925-8388
卷号	354 期号:1-2 页码:296-302
摘要	A Mg-30 wt% TiMn1.5 hydrogen storage composite was successfully synthesized by mechanical milling of a mixture of magnesium powder and amorphous TiMn1.5 powder. The absorption/desorption rates and storage capacity under different temperatures were evaluated. The composite possesses high hydrogen storage capacity and exhibits excellent absorption/desorption kinetic properties and is activated in situ due to reaction ball milling (RBM). The hydrogen capacity is over 2.7 wt% at 373 K, and one absorption/desorption hydrogen cycle can be finished in 20 min at 523-573 K. Interestingly, the desorption temperature begins at about 500 K, decreasing about 40 K in contrast to that of the milled pure MgH2. Mechanical milling produces fine powder with nanometer-scaled grains and introduces many imperfections into the Mg matrix, which contribute to the enhanced hydrogen absorption/desorption rates with high capacity catalyzed by TiMn1.5 (amorphous). (C) 2002 Elsevier Science B.V. All rights reserved.
部门归属	chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china.;zhang, hf (reprint author), chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china
关键词	Transition Metal Alloys Mechanical Alloying Nanostructured Materials Gas-solid Reactions Hydrogen Absorption Properties Hydriding Properties Mg Storage Sorption
URL	查看原文
WOS记录号	WOS:000182879800051
引用统计	被引频次：28[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/321006/35856
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	Y. Q. Hu,H. F. Zhang,A. M. Wang,et al. Preparation and hydriding/dehydriding properties of mechanically milled Mg-30 wt% TiMn1.5 composite[J]. Journal of Alloys and Compounds,2003,354(1-2):296-302.
APA	Y. Q. Hu,H. F. Zhang,A. M. Wang,B. Z. Ding,&Z. Q. Hu.(2003).Preparation and hydriding/dehydriding properties of mechanically milled Mg-30 wt% TiMn1.5 composite.Journal of Alloys and Compounds,354(1-2),296-302.
MLA	Y. Q. Hu,et al."Preparation and hydriding/dehydriding properties of mechanically milled Mg-30 wt% TiMn1.5 composite".Journal of Alloys and Compounds 354.1-2(2003):296-302.