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题名: Hydrogen Sorption from the Mg(NH2)(2)-KH System and Synthesis of an Amide-Imide Complex of KMg(NH)(NH2)
作者: Wang, Jianhui1, 2;  Wu, Guotao1;  Chua, Yong Shen3;  Guo, Jianping1;  Xiong, Zhitao1;  Zhang, Yao1;  Gao, Mingxia2;  Pan, Hongge2;  Chen, Ping1
关键词: chemisorption ;  hydrogen ;  magnesium ;  potassium ;  synthetic methods
刊名: CHEMSUSCHEM
发表日期: 2011
DOI: 10.1002/cssc.201100207
卷: 4, 期:11, 页:1622-1628
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Multidisciplinary
研究领域[WOS]: Chemistry
英文摘要: The interaction between KH and Mg(NH2)(2) is investigated. Results from temperature-programmed desorption measurements on samples of [Mg(NH2)(2)][KH]x (x=0.5, 1.0, and 2.0) indicated that dehydrogenation from [Mg(NH2)(2)][KH] occurred through a two-step reaction with an onset temperature as low as 60 degrees C. Accompanied by hydrogen release, K2Mg(NH2)(4) and MgNH successively developed at lower temperatures, whereas KMg(NH)(NH2) developed at higher temperatures. However, when dehydrogenation was conducted under isothermal and near-equilibrium conditions, a single-step reaction that led to the formation of KMg(NH)(NH2) was observed. KMg(NH)(NH2) is a new amideimide complex. The synthesis of KMg(NH)(NH2) can be achieved either by dehydrogenation of the [Mg(NH2)(2)][KH] mixture or by thermal decomposition of the [K2Mg(NH2)(4)][Mg(NH2)(2)] mixture.
关键词[WOS]: MG-N-H ;  STORAGE PROPERTIES ;  IMPROVEMENT ;  HYDRIDES ;  LIH
语种: 英语
WOS记录号: WOS:000297004900019
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/142596
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.Zhejiang Univ, Dept Mat Sci & Engn, Hangzhou 310027, Zhejiang, Peoples R China
3.Natl Univ Singapore, Dept Chem, Singapore 117542, Singapore

Recommended Citation:
Wang, Jianhui,Wu, Guotao,Chua, Yong Shen,et al. Hydrogen Sorption from the Mg(NH2)(2)-KH System and Synthesis of an Amide-Imide Complex of KMg(NH)(NH2)[J]. CHEMSUSCHEM,2011,4(11):1622-1628.
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