Hydrogen sorption kinetics of MgH(2) catalyzed with titanium compounds

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	Hydrogen sorption kinetics of MgH(2) catalyzed with titanium compounds
	L. P. Ma; P. Wang; H. M. Cheng
	2010
发表期刊	International Journal of Hydrogen Energy
ISSN	0360-3199
卷号	35 期号:7 页码:3046-3050
摘要	Identification of effective catalyst is a subject of great interest in developing MgH(2) system as a potential hydrogen storage medium. In this work, the effects of typical titanium compounds (TiF(3), TiCl(3), TiO(2), TiN and TiH(2)) on MgH(2) were systematically investigated with regard to hydrogen sorption kinetics. Among them, adding TiF(3) leads to the most pronounced improvement on both absorption and desorption rates. Comparative studies indicate that the TiH(2) and MgF(2) phases in situ introduced by TiF(3) fail to explain the superior catalytic activity. However, a positive interaction between TiH(2) and MgF(2) is observed. Detailed comparison between the effect of TiF(3) and TiCl(3) additive suggests the catalytic role of F anion. XPS examination reveals that new bonding state(s) of F anion is formed in the MgH(2) + TiF(3) system. On the basis of these results, we propose that the substantial participation of F anion in the catalytic function contributes to the superior activity of TiF(3). (C) 2009 Professor T. Nejat Veziroglu. Published by Elsevier Ltd. All rights reserved.
部门归属	[ma, lai-peng; wang, ping; cheng, hui-ming] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china.;wang, p (reprint author), chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china;pingwang@imr.ac.cn
关键词	Hydrogen Storage Kinetics Hydride Catalyst Aluminum Hydrides Storage Materials Magnesium Improvement Composite Metals Nb2o5 Tif3 Fe
URL	查看原文
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/31365
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	L. P. Ma,P. Wang,H. M. Cheng. Hydrogen sorption kinetics of MgH(2) catalyzed with titanium compounds[J]. International Journal of Hydrogen Energy,2010,35(7):3046-3050.
APA	L. P. Ma,P. Wang,&H. M. Cheng.(2010).Hydrogen sorption kinetics of MgH(2) catalyzed with titanium compounds.International Journal of Hydrogen Energy,35(7),3046-3050.
MLA	L. P. Ma,et al."Hydrogen sorption kinetics of MgH(2) catalyzed with titanium compounds".International Journal of Hydrogen Energy 35.7(2010):3046-3050.