Structure and Hydrogen Storage Properties of Calcium Borohydride Diammoniate

	Structure and Hydrogen Storage Properties of Calcium Borohydride Diammoniate
	Chu, Hailiang; Wu, Guotao; Xiong, Zhitao; Guo, Jianping; He, Teng; Chen, Ping
刊名	chemistry of materials
	2010-11-09
卷号	22 期号:21 页码:6021-6028
通讯作者	陈萍
产权排序	1;1
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.
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
收录类别	SCI
原文出处	false
语种	英语
WOS记录号	WOS:000283623700029
公开日期	2010-11-30
内容类型	期刊论文
源URL	[http://159.226.238.44/handle/321008/103463]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
作者单位	Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
推荐引用方式 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,&Chen, Ping.(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.