Ultra-fast dehydrogenation behavior at low temperature of LiAlH4 modified by fluorographite
作者:Cheng, H (Cheng, Hao)[ 1 ] ; Zheng, JG (Zheng, Jiaguang)[ 1 ] ; Xiao, XZ (Xiao, Xuezhang)[ 1,3 ] ; Liu, Z (Liu, Zhe)[ 2 ] ; Ren, XJ (Ren, Xiujuan)[ 2 ] ; Wang, XC (Wang, Xuancheng)[ 1 ] ; Li, SQ (Li, Shouquan)[ 1 ] ; Chen, LX (Chen, Lixin)[ 1,4 ]
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INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
卷: 45 期: 52 页: 28123-28133 特刊: SI
DOI: 10.1016/j.ijhydene.2020.03.186
出版年: OCT 23 2020
文献类型:Article; Proceedings Paper
会议名称
会议: 18th Conference of China-Association-for-Hydrogen-Energy (CAHE)
会议地点: Guangzhou, PEOPLES R CHINA
会议日期: NOV 15-17, 2019
会议赞助商:China Assoc Hydrogen Energy; S China Univ Technol
摘要
LiAlH4 modified by different weight ratios of fluorographite (FGi) can be synthesized through mechanical ball-milling and their dehydrogenation behaviors were investigated. LiAlH4 particles distributed on the FGi surface with greatly decreased sizes are achieved, comparing with ball-milled pristine LiAlH4. Greatly reduced dehydrogenation temperatures are discovered in LiAlH4-FGi composites. Among these composites, LiAlH4-40FGi composite exhibits an ultra-fast hydrogen release at very low temperature as 61.2 degrees C, and 5.7 wt% hydrogen is liberated in seconds. Besides, the released hydrogen is of high purity according to MS test. Furthermore, XRD analysis on the dehydrogenated products proves that FGi changes the dehydrogenation reaction pathway of LiAlH4, through which the dehydrogenation reaction enthalpy change is remarkably reduced, leading to greatly improved hydrogen desorption properties. Such investigations have discovered the potential of solid-state way of producing hydrogen under ambient temperatures. (C) 2020 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
关键词
作者关键词:LiAlH4; Fluorographite; Hydrogen storage; Destabilization
KeyWords Plus:HYDROGEN STORAGE PROPERTIES; SIGNIFICANTLY IMPROVED DEHYDROGENATION; LITHIUM ALUMINUM-HYDRIDE; FACILE SYNTHESIS; ADDITIVES; KINETICS; NANOCOMPOSITES; HYDROLYSIS; COMPOSITE; LIBH4
作者信息
通讯作者地址:
Zhejiang University Zhejiang Univ, Sch Mat Sci & Engn, State Key Lab Silicon Mat, Hangzhou 310027, Peoples R China.
通讯作者地址: Xiao, XZ (通讯作者)
显示更多Zhejiang Univ, Sch Mat Sci & Engn, State Key Lab Silicon Mat, Hangzhou 310027, Peoples R China.
地址:
显示更多[ 1 ] Zhejiang Univ, Sch Mat Sci & Engn, State Key Lab Silicon Mat, Hangzhou 310027, Peoples R China
显示更多[ 2 ] Acad Mil Med Sci, Inst Chem Def, Beijing 102205, Peoples R China
显示更多[ 3 ] South China Univ Technol, Guangdong Prov Key Lab Adv Energy Storage Mat, Guangzhou 510640, Peoples R China
[ 4 ] Key Lab Adv Mat & Applicat Batteries Zhejiang Pro, Hangzhou 310013, Peoples R China
电子邮件地址:xzxiao@zju.edu.cn
基金资助致谢
基金资助机构显示详情授权号
National Key R&D Program of China
2018YFB1502104
National Natural Science Foundation of China (NSFC)
51671173
Open Fund of the Guangdong Provincial Key Laboratory of Advance Energy Storage Materials
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出版商
PERGAMON-ELSEVIER SCIENCE LTD, THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
期刊信息
Impact Factor (影响因子): Journal Citation Reports
类别 / 分类
研究方向:Chemistry; Electrochemistry; Energy & Fuels
Web of Science 类别:Chemistry, Physical; Electrochemistry; Energy & Fuels