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题名: Effect of ball milling time on the hydrogen storage properties of TiF3-doped LiAlH4
作者: Liu, Shu-Sheng1, 3;  Sun, Li-Xian1;  Zhang, Yao1;  Xu, Fen2;  Zhang, Jian1;  Chu, Hai-Liang1;  Fan, Mei-Qiang1;  Zhang, Tao1;  Song, Xiao-Yan4;  Grolier, Jean Pierre5
通讯作者: 孙立贤
关键词: Hydrogen storage ;  TiF3 ;  LiAlH4 ;  Ball milling time
刊名: INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
发表日期: 2009-10-01
DOI: 10.1016/j.ijhydene.2009.07.090
卷: 34, 期:19, 页:8079-8085
收录类别: SCI
文章类型: Article
部门归属: 15
项目归属: 1504,1501
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 the present work, the catalytic effect of TiF3 on the dehydrogenation properties of LiAlH4 has been investigated. Decomposition of LiAlH4 occurs during ball milling in the presence of 4 mol% TiF3. Different ball milling times have been used, from 0.5 h to 18 h. With ball milling time increasing, the crystallite sizes of LiAlH4 get smaller (from 69 nm to 43 nm) and the dehydrogenation temperature becomes lower (from 80 degrees C to 60 degrees C). Half an hour ball milling makes the initial dehydrogenation temperature of doped LiAlH4 reduce to 80 degrees C, which is 70 degrees C lower than as-received LiAlH4. About 5.0 wt.% H-2 can be released from TiF3-doped LiAlH4 after 18 h ball milling in the range of 60 degrees C-145 degrees C (heating rate 2 degrees C min(-1)). TiF3 probably reacts with LiAlH4 to form the catalyst, TiAl3. The mechanochemical and thermochemical reactions have been clarified. However, the rehydrogenation of LiAlH4/Li3AlH6 can not be realized under 95 bar H-2 in the presence of TiF3 because of their thermodynamic properties. (C) 2009 Professor T. Nejat Veziroglu. Published by Elsevier Ltd. All rights reserved.
关键词[WOS]: LITHIUM ALUMINUM-HYDRIDE ;  METAL HYDRIDES ;  ALANATE LIALH4 ;  RELEASE ;  NAALH4 ;  STABILITY ;  CATALYSTS ;  TIF3 ;  TRANSFORMATIONS ;  DECOMPOSITION
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000271354700025
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/101985
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, Mat & Thermochem Lab, Dalian 116023, Liaoning, Peoples R China
2.Liaoning Normal Univ, Fac Chem & Chem Engn, Dalian 116029, Peoples R China
3.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China
4.Beijing Univ Technol, Coll Mat Sci & Engn, Key Lab Adv Funct Mat, Chinese Educ Minist, Beijing 100124, Peoples R China
5.Univ Clermont Ferrand, Lab Thermodynam Solut & Polymers, F-63177 Aubiere, France

Recommended Citation:
Liu, Shu-Sheng,Sun, Li-Xian,Zhang, Yao,et al. Effect of ball milling time on the hydrogen storage properties of TiF3-doped LiAlH4[J]. INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,2009,34(19):8079-8085.
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