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Synthesis, structures and dehydrogenation of magnesium borohydride-ethylenediamine composites
Chen, Juner1,2; Chua, Yong Shen1; Wu, Hui3,4; Xiong, Zhitao1; He, Teng1; Zhou, Wei4; Ju, Xiaohua1; Yang, Minghui1; Wu, Guotao1; Chen, Ping1,5
关键词Dehydrogenation Magnesium Borohydride Ethylenediamine Hydrogen Storage Mechanism Isotopic Labelling
刊名INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
2015-01-05
DOI10.1016/j.ijhydene.2014.11.020
40期:1页:412-419
收录类别SCI
文章类型Article
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
关键词[WOS]HYDROGEN-STORAGE ; MG(BH4)(2) ; RELEASE ; SYSTEM ; BORANE
英文摘要Magnesium borohydride-ethylenediamine composites (Mg(BH4)(2)-nEDA, n = 2, 3, 4), a new type of hydrogen storage material, were synthesized by ball milling magnesium borohydride and ethylenediamine (EDA). In particular, Mg(BH4)(2).3EDA and Mg(BH4)(2).4EDA can be well defined by a orthorhombic Pbca cell and a triclinic P1 cell, respectively. Hydrogen releasing from the Mg(BH4)(2)-nEDA composites was observed at elevated temperatures. Detailed dehydrogenation properties and mechanism of Mg(BH4)(2)-2EDA composite in which there are equivalent H delta+(N) and H delta-(B) were systematically investigated. Ca. 8 wt% hydrogen can be evolved from Mg(BH4)(2)-2EDA in one step upon holding it at 260 degrees C for 12 h. Mechanistic studies using phased dehydrogenation and isotopic labelling experiments show that hydrogen was released via the establishment of -N=B=N- bond as well as the combination of H delta+ (N) and H delta- (B). Copyright (C) 2014, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
语种英语
WOS记录号WOS:000348687300042
引用统计
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/145950
专题中国科学院大连化学物理研究所
作者单位1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, Dalian 116023, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.NIST, Ctr Neutron Res, Gaithersburg, MD 20899 USA
4.Univ Maryland, Dept Mat Sci & Engn, College Pk, MD 20742 USA
5.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
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GB/T 7714
Chen, Juner,Chua, Yong Shen,Wu, Hui,et al. Synthesis, structures and dehydrogenation of magnesium borohydride-ethylenediamine composites[J]. INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,2015,40(1):412-419.
APA Chen, Juner.,Chua, Yong Shen.,Wu, Hui.,Xiong, Zhitao.,He, Teng.,...&Chen, Ping.(2015).Synthesis, structures and dehydrogenation of magnesium borohydride-ethylenediamine composites.INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,40(1),412-419.
MLA Chen, Juner,et al."Synthesis, structures and dehydrogenation of magnesium borohydride-ethylenediamine composites".INTERNATIONAL JOURNAL OF HYDROGEN ENERGY 40.1(2015):412-419.
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