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学科主题物理化学
Quasi In Situ Mössbauer Spectroscopic Studies on Novel Hydrogen Storage Material of Fe-Modified Ammonia Borane
He T(何腾); Wang JH(王军虎); Liu T(刘涛); Wu GT(吴国涛); Xiong ZT(熊智涛); Yin J(尹杰); Chu HL(褚海亮); Zhang T(张涛); Chen P(陈萍)
会议名称XII Latin American Conference on the Applications of the Mossbauer Effect
会议日期2010-11-07
2010-11-07
会议地点秘鲁
页码37/2
部门归属十五室
主办者San Marcos University
英文摘要Ammonia borane (AB in short, NH3BH3) with a hydrogen content of 19.6 wt % has attracted increasing attention as a promising hydrogen storage material. One of the challenges in its practical usage is how to improve its dehydrogenation ability. Among various approaches, the direct transition metal (Co, Ni and Fe) modification of solid phase AB reported by Chen’s group very recently has been proved to be a very exciting method. In case of Fe-modified AB, the rate of hydrogen evolution from the Fe-modified AB is 5.8 times as that of pristine AB at a temperature as low as 60 °C with significant depression of induction period, sample foaming and toxic byproducts. In this presentation, quasi in situ 57Fe Mössbauer and X-ray adsorption fine structure (XAFS) techniques are employed to identify the changes of Fe chemical environment during dehydrogenation process. The experimental results show that FeB nanoalloy is formed upon mixing AB with FeCl3 which probably functions as catalytic species in the dehydrogenation process.
语种中文
文献类型会议论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/114226
专题中国科学院大连化学物理研究所
通讯作者Wang JH(王军虎)
推荐引用方式
GB/T 7714
He T,Wang JH,Liu T,et al. Quasi In Situ Mössbauer Spectroscopic Studies on Novel Hydrogen Storage Material of Fe-Modified Ammonia Borane[C],2010:37/2.
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