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题名: Hydrogen storage properties of Li-Ca-N-H system with different molar ratios of LiNH2/CaH2
作者: Chu, Hailiang1;  Xiong, Zhitao1;  Wu, Guotao1;  He, Teng1;  Wu, Chengzhang1;  Chen, Ping1
通讯作者: 陈萍
关键词: Lithium amide ;  Calcium hydride ;  Hydrogen desorption ;  Structure
刊名: INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
发表日期: 2010-08-01
DOI: 10.1016/j.ijhydene.2009.12.009
卷: 35, 期:15, 页:8317-8321
收录类别: SCI ;  ISTP
文章类型: Article
部门归属: 19
项目归属: 1901
产权排名: 1;1
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Chemistry, Physical ;  Electrochemistry ;  Energy & Fuels
研究领域[WOS]: Chemistry ;  Electrochemistry ;  Energy & Fuels
英文摘要: In this work, dehydrogenation and rehydrogenation of three LiNH2/CaH2 samples with LiNH2/CaH2 molar ratio of 2/1, 3/1 and 4/1 were systematically investigated. Remarkable differences were observed in the temperature dependence of hydrogen desorption and subsequent absorption. LiNH2/CaH2 in a molar ratio of 2/1 transforms to ternary imide Li2Ca(NH)(2) after desorbing about 4.5 wt.% H-2 at 350 degrees C. And it has a reversible hydrogen storage capacity of 2.7 wt.% at 200 degrees C. As for the LiNH2/CaH2 mixture in a molar ratio of 4/1, it transforms to a new compound with a composition of Li4CaN4H6 after being dehydrogenated at 350 degrees C. The rehydrogenation of both LiCa(NH)(2) and Li4CaN4H6 gives LiNH2, LiH and the solid solution of 2CaNH-Ca(NH2)(2). (C) 2009 Professor T. Nejat Veziroglu. Published by Elsevier Ltd. All rights reserved.
关键词[WOS]: LINH2/MGH2 MIXTURE ;  COMPLEX HYDRIDES ;  IMIDES ;  AMIDE
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000281383900086
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/103455
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China

Recommended Citation:
Chu, Hailiang,Xiong, Zhitao,Wu, Guotao,et al. Hydrogen storage properties of Li-Ca-N-H system with different molar ratios of LiNH2/CaH2[J]. INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,2010,35(15):8317-8321.
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