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题名: Stepwise Phase Transition in the Formation of Lithium Amidoborane
作者: Wu, Chengzhang1;  Wu, Guotao1;  Xiong, Zhitao1;  David, William I. F.2, 3;  Ryan, Kate R.2, 3;  Jones, Martin O.2, 3;  Edwards, Peter P.3;  Chu, Hailiang1;  Chen, Ping1
通讯作者: 陈萍
刊名: INORGANIC CHEMISTRY
发表日期: 2010-05-03
DOI: 10.1021/ic100308j
卷: 49, 期:9, 页:4319-4323
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
类目[WOS]: Chemistry, Inorganic & Nuclear
研究领域[WOS]: Chemistry
英文摘要: A stepwise phase transition in the formation of lithium amidoborane via the solid-state reaction of lithium hydride and ammonia borane has been identified and investigated Structural analyses reveal that a lithium amidoborane-ammonia borane complex (LiNH(2)BH(3)center dot NH(3)BH(3)) and two allotropes of lithium amidoborane (denoted as alpha- and beta-LiNH(2)BH(3), both of which adopt orthorhombic symmetry) were formed in the process of synthesis LiNH(2)BH(3)center dot NH(3)BH(3) is the intermediate of the synthesis and adopts a monoclinic structure that features layered LINH(2)BH(3) and NH(3)BH(3) molecules and contains both ionic and dihydrogen bonds Unlike alpha-LINH(2)BH(3), the units of the beta phase have two distinct Li(+) and [NH(2)BH(3)](-) environments. beta-LINH(2)BH(3) can only be observed in energetic ball milling and transforms to alpha-LiNH(2)BH(3) upon extended milling. Both allotropes of LiNH(2)BH(3) exhibit similar thermal decomposition behavior, with 10.8 wt % H(2) released when heated to 180 degrees C; in contrast, LINH(2)BH(3)center dot NH(3)BH(3) releases approximately 14.3 wt % H(2) under the same conditions
关键词[WOS]: HYDROGEN STORAGE MATERIAL ;  AMMONIA-BORANE ;  THERMAL-DECOMPOSITION ;  CRYSTAL-STRUCTURE ;  HYDRIDE ;  RELEASE ;  H3NBH3
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000276939100045
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/103445
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.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
2.Rutherford Appleton Lab, Didcot OX11 0QX, Oxon, England
3.Univ Oxford, ICL, Dept Chem, Oxford OX1 2JD, England

Recommended Citation:
Wu, Chengzhang,Wu, Guotao,Xiong, Zhitao,et al. Stepwise Phase Transition in the Formation of Lithium Amidoborane[J]. INORGANIC CHEMISTRY,2010,49(9):4319-4323.
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