Quasi In Situ M&ouml;ssbauer Spectroscopic Studies on Novel Hydrogen Storage Material of Fe-Modified Ammonia Borane

	Quasi In Situ Mössbauer Spectroscopic Studies on Novel Hydrogen Storage Material of Fe-Modified Ammonia Borane
	何腾 ; 王军虎 ; 刘涛 ; 吴国涛 ; 熊智涛 ; 尹杰 ; 褚海亮 ; 张涛 ; 陈萍
	2011
会议名称	6th Nassau-Argonne International Mossbauer Symposium
会议日期	2011-1-13
会议地点	纽约
页码	24-0
通讯作者	王军虎
中文摘要	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.
合作状况	特邀报告
会议主办者	Nassau Community College
会议录	6th Nassau-Argonne International Mossbauer Symposium
会议录出版者	待补充
会议录出版地	待补充
学科主题	原子核物理学
语种	英语
内容类型	会议论文
源URL	[http://159.226.238.44/handle/321008/115931]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
推荐引用方式 GB/T 7714	何腾,王军虎,刘涛,等. Quasi In Situ Mössbauer Spectroscopic Studies on Novel Hydrogen Storage Material of Fe-Modified Ammonia Borane　[C]. 见:6th Nassau-Argonne International Mossbauer Symposium. 纽约. 2011-1-13.