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题名: Calcium Amidoborane Ammoniate-Synthesis, Structure, and Hydrogen Storage Properties
作者: Chua, Yong Shen2;  Wu, Guotao1;  Xiong, Zhitao1;  He, Teng1;  Chen, Ping1
刊名: CHEMISTRY OF MATERIALS
发表日期: 2009-10-27
DOI: 10.1021/cm9020222
卷: 21, 期:20, 页:4899-4904
收录类别: SCI
文章类型: Article
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
英文摘要: A new type of hydrogen storage material-namely, calcium amidoborane ammoniate (Ca(NH(2)BH(3))(2)center dot 2NH(3))-is synthesized by reacting calcium amide and ammonia borane in a molar ratio of 1:2. Structural analyses show that this newly developed complex has a orthorhombic structure (space group Pna21) with unit-cell parameters of a = 18.673(3) angstrom, b = 5.2283(8) angstrom, c 8.5748(12) angstrom, and V = 873.16(22) angstrom(3). The presence of NH(3) in the crystal lattice facilitates the formation of dihydrogen bonding between BH center dot center dot center dot HN, which is considerably shorter than that in calcium amidoborane (Ca(NH(2)BH(3))(2)). As a consequence, the bond lengths of B-H and N-H are increased comparatively. Our experimental results show that more than 8 wt % hydrogen can be released from Ca(NH2BH3)(2)center dot 2NH(3) without borazine emission at 150 degrees C.
关键词[WOS]: THERMAL-DECOMPOSITION ;  CRYSTAL-STRUCTURES ;  LITHIUM HYDRIDE ;  BORANE ;  NITRIDES ;  METALS ;  IMIDES ;  ALKALI
语种: 英语
WOS记录号: WOS:000270807800022
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/141389
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.Dalian Inst Chem Phys, Dalian 116023, Peoples R China
2.Natl Univ Singapore, Dept Chem, Singapore 117542, Singapore

Recommended Citation:
Chua, Yong Shen,Wu, Guotao,Xiong, Zhitao,et al. Calcium Amidoborane Ammoniate-Synthesis, Structure, and Hydrogen Storage Properties[J]. CHEMISTRY OF MATERIALS,2009,21(20):4899-4904.
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