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学科主题: 物理化学
题名: Quasi in situ Mossbauer and XAS studies on FeB nanoalloy for heterogeneous catalytic dehydrogenation of ammonia borane
作者: He, Teng1, 2;  Wang, Junhu1;  Liu, Tao3;  Wu, Guotao1;  Xiong, Zhitao1;  Yin, Jie1, 2;  Chu, Hailiang1;  Zhang, Tao1;  Chen, Ping1
通讯作者: 陈萍
关键词: Ammonia borane ;  Hydrogen storage ;  Heterogeneous catalysis ;  Fe-B nanoalloy ;  Mossbauer ;  XAS
刊名: CATALYSIS TODAY
发表日期: 2011-07-19
DOI: 10.1016/j.cattod.2011.02.041
卷: 170, 期:1, 页:69-75
收录类别: SCI
文章类型: Article
部门归属: 19;15
项目归属: 1901;1501
产权排名: 1,1
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Chemistry, Applied ;  Chemistry, Physical ;  Engineering, Chemical
摘要: Quasi in Situ Mossbauer and XAS Studies On FeB Nanoalloy for Heterogeneous Catalytic Dehydrogenation of Ammonia Borane
研究领域[WOS]: Chemistry ;  Engineering
英文摘要: In our previous report, about 1 equiv.H(2) can be evolved from a Fe-modified ammonia borane (AB) sample at a temperature as low as 60 degrees C with significant depression of induction period, sample foaming and toxic byproducts [1]. In this study, the effects of catalyst precursors and catalyst loading were investigated on the hydrogen desorption profile and the formation of crystalline polyaminoborane (PAB). The experimental results show that loading 2.0 mol.% FeCl(3) to solid-state AB gives the best performance of formation of crystalline PAB. The rate of hydrogen evolution from the Fe-modified AB is 5.8 times as that of neat AB at 60 degrees C. X-ray absorption spectroscopy (XAS) and quasi in situ (57)Fe Mossbauer characterizations show that Fe-B nanoalloy, which functions as catalytic species in the dehydrogenation, is formed upon mixing AB with FeCl(3). Crown Copyright (C) 2011 Published by Elsevier B.V. All rights reserved.
关键词[WOS]: CHEMICAL HYDROGEN STORAGE ;  ZIEGLER-NATTA CATALYSIS ;  N-H COMPOUNDS ;  THERMAL-DECOMPOSITION ;  ALLOY PARTICLES ;  POLYMERIZATION ;  AMIDOBORANES ;  CHEMISTRY ;  RELEASE ;  LITHIUM
语种: 英语
WOS记录号: WOS:000291799100011
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/115414
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.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
3.Karlsruhe Inst Technol, Inst Synchrotron Radiat, D-76344 Karlsruhe, Germany

Recommended Citation:
He, Teng,Wang, Junhu,Liu, Tao,et al. Quasi in situ Mossbauer and XAS studies on FeB nanoalloy for heterogeneous catalytic dehydrogenation of ammonia borane[J]. CATALYSIS TODAY,2011,170(1):69-75.
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