Identifying catalyst in Li-N-H system by x-ray absorption spectroscopy

被引：10

作者：

Isobe, Shigehito ^{[1
]}

Hino, Satoshi ^{[2
]}

Ichikawa, Takayuki ^{[2
]}

Kojima, Yoshitsugu ^{[2
]}

机构：

[1] Hokkaido Univ, Grad Sch Engn, Sapporo, Hokkaido 0608628, Japan

[2] Hiroshima Univ, Inst Adv Mat Res, Higashihiroshima 7398530, Japan

来源：

APPLIED PHYSICS LETTERS | 2011年 / 99卷 / 01期

基金：

日本学术振兴会;

关键词：

HYDROGEN STORAGE-SYSTEM; DESORPTION; MECHANISM;

D O I：

10.1063/1.3606534

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Chemical bonding states of titanium compounds in LiH and LiNH(2) mixture, which have been a candidate for a hydrogen storage material, have been examined by x-ray absorption spectroscopy measurement as the characterization of the catalysts. The results of x-ray absorption near-edge structure indicated that the Ti atoms in the Ti compounds, which had the catalytic effect on the kinetics of the hydrogen desorption properties, had a common electronic (chemical bonding) state. Additionally, this common electronic state of the Ti catalysts agrees with that of TiCl(3)center dot 5NH(3). These results indicated that TiCl(3)center dot 5NH(3) could act as the catalyst. (C) 2011 American Institute of Physics. [doi: 10.1063/1.3606534]

引用

页数：3

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