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Structure and Hydrogen Storage Properties of Calcium Borohydride Diammoniate
Chu, Hailiang; Wu, Guotao; Xiong, Zhitao; Guo, Jianping; He, Teng; Chen, Ping; Chen P(陈萍)
刊名CHEMISTRY OF MATERIALS
2010-11-09
DOI10.1021/cm1023234
22期:21页:6021-6028
收录类别SCI
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 ; Materials Science, Multidisciplinary
研究领域[WOS]Chemistry ; Materials Science
关键词[WOS]WELL-CRYSTALLIZED MG(BH4)(2) ; MAGNESIUM BOROHYDRIDE ; NEUTRON-DIFFRACTION ; REVERSIBILITY ; CA(BH4)(2) ; LIBH4 ; DEHYDROGENATION ; RELEASE ; DYNAMICS ; METALS
英文摘要A new type of hydrogen storage material namely, calcium borohydride diammoniate (Ca(BH4)(2)center dot 2NH(3)), is synthesized by reacting calcium borohydride and 2 equiv of ammonia. Structural analyses show that this complex has an orthorhombic structure (space group Pbcn) with unit-cell parameters of a = 6.4160 angstrom, b = 8.3900 angstrom, c = 12.7020 angstrom, and V = 683.75 angstrom(3), in which Ca2+ coordinates with four -BH4 groups two -NH3 groups. The presence of NH3 in the crystal lattice facilitates the formation of B-H center dot center dot center dot H-N dihydrogen bonding. As a consequence, the bond lengths of B-H and N-H arc increased with comparison to Ca(BH4)(2) and NH3, respectively. Our experimental results show that more than 11.3 wt % hydrogen can be released exothermically from Ca(BH4)(2)center dot 2NH(3) in a closed vessel at a temperature as low as 250 degrees C.
语种英语
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WOS记录号WOS:000283623700029
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被引频次:70[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/103463
专题中国科学院大连化学物理研究所
通讯作者Chen P(陈萍)
作者单位Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
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GB/T 7714
Chu, Hailiang,Wu, Guotao,Xiong, Zhitao,et al. Structure and Hydrogen Storage Properties of Calcium Borohydride Diammoniate[J]. CHEMISTRY OF MATERIALS,2010,22(21):6021-6028.
APA Chu, Hailiang.,Wu, Guotao.,Xiong, Zhitao.,Guo, Jianping.,He, Teng.,...&陈萍.(2010).Structure and Hydrogen Storage Properties of Calcium Borohydride Diammoniate.CHEMISTRY OF MATERIALS,22(21),6021-6028.
MLA Chu, Hailiang,et al."Structure and Hydrogen Storage Properties of Calcium Borohydride Diammoniate".CHEMISTRY OF MATERIALS 22.21(2010):6021-6028.
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