In situ formation of Ti hydride and its catalytic effect in doped NaAlH4 prepared by milling NaH/Al with metallic Ti powder

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	In situ formation of Ti hydride and its catalytic effect in doped NaAlH4 prepared by milling NaH/Al with metallic Ti powder
	X. D. Kang; P. Wang; H. M. Cheng
	2007
发表期刊	International Journal of Hydrogen Energy
ISSN	0360-3199
卷号	32 期号:14 页码:2943-2948
摘要	X-ray diffraction (XRD) analysis revealed that nanocrystalline Ti hydride(s) was in situ formed during mechanical milling 1:1 NaH/AI mixture with metallic Ti powder. The composition of the formed Ti hydrides varies slightly upon changing the milling atmosphere from inert Ar to reactive H-2. Directly doping sodium alanate with commercial Ti hydride was found to result in similar dehydriding kinetics, hydrogen capacity, and cycling stability to those of the samples doped with metallic Ti. Moreover, according to the XRD results, the Ti hydride(s) remains stable in the de-/hydrogenation cycles. On the basis of these results, a discussion regarding the nature of catalytically active species was given. (c) 2007 International Association for Hydrogen Energy. Published by Elsevier Ltd. All rights reserved.
部门归属	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 Naalh4 Metallic Ti Ti Hydride Active Species Sodium Aluminum-hydride Reversible Hydrogen Storage X-ray-diffraction Titanium Alanates State Spectroscopy Absorption Precursors Zirconium
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WOS记录号	WOS:000250287300040
引用统计	被引频次：25[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/321006/33614
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	X. D. Kang,P. Wang,H. M. Cheng. In situ formation of Ti hydride and its catalytic effect in doped NaAlH4 prepared by milling NaH/Al with metallic Ti powder[J]. International Journal of Hydrogen Energy,2007,32(14):2943-2948.
APA	X. D. Kang,P. Wang,&H. M. Cheng.(2007).In situ formation of Ti hydride and its catalytic effect in doped NaAlH4 prepared by milling NaH/Al with metallic Ti powder.International Journal of Hydrogen Energy,32(14),2943-2948.
MLA	X. D. Kang,et al."In situ formation of Ti hydride and its catalytic effect in doped NaAlH4 prepared by milling NaH/Al with metallic Ti powder".International Journal of Hydrogen Energy 32.14(2007):2943-2948.