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学科主题: 物理化学
题名: Catalytic Dehydrogenation of Complex Hydrides for Hydrogen Storage
作者: Chen P(陈萍)
会议文集: 
会议名称: Nano-and Surface Science approaches to production and storage of hydrogen
会议日期: 2010-11-14
出版日期: 2011
会议地点: woordwijkerhout
通讯作者: 陈萍
出版者: 待补充
出版地: 待补充
合作性质: 特邀报告
部门归属: 1901
主办者: Leiden University
摘要: Hydrogen Storage is one of the pending and challenging technical barriers in the implementation of hydrogen energy.1.2 Amide-hydride and ammonia borane are the two systems attracting considerable attention. It has been demonstrated that 5.5 wt.% or 6.7 wt.% of hydrogen can be reversibly or irreversiblly stored in magnesium amide-lithium hydride and ammonia borane systems, respectively.3.4 However, relatively high operating temperatures due to kinetic barriers place serious restriction onto the application of those substances. Conventional transition metals have little catalytic effect on the dehydrogenation of the amide-hydride complexes. Interestingly, K works well for Mg(NH2)2-LiH systems.5 For the decomposition of ammonia borane, the dissociation of B-H bond is the first step to be involved, where transition metal borides can effectively enhance the dehydrogenation rate6. The details of the kinetic improvement and the identification of reactive species will be presented.
英文摘要: Hydrogen Storage is one of the pending and challenging technical barriers in the implementation of hydrogen energy.1.2 Amide-hydride and ammonia borane are the two systems attracting considerable attention. It has been demonstrated that 5.5 wt.% or 6.7 wt.% of hydrogen can be reversibly or irreversiblly stored in magnesium amide-lithium hydride and ammonia borane systems, respectively.3.4 However, relatively high operating temperatures due to kinetic barriers place serious restriction onto the application of those substances. Conventional transition metals have little catalytic effect on the dehydrogenation of the amide-hydride complexes. Interestingly, K works well for Mg(NH2)2-LiH systems.5 For the decomposition of ammonia borane, the dissociation of B-H bond is the first step to be involved, where transition metal borides can effectively enhance the dehydrogenation rate6. The details of the kinetic improvement and the identification of reactive species will be presented.
内容类型: 会议论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/115887
Appears in Collections:中国科学院大连化学物理研究所_会议论文

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Recommended Citation:
Chen P. Catalytic Dehydrogenation of Complex Hydrides for Hydrogen Storage[C]. 见:Nano-and Surface Science approaches to production and storage of hydrogen. woordwijkerhout. 2010-11-14.
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