Potassium-Modified Mg(NH2)2/2 LiH System for Hydrogen Storage

被引：182

作者：

Wang, Jianhui ^{[2
,3
]}

Liu, Tao ^{[2
]}

Wu, Guotao ^{[1
]}

Li, Wen ^{[2
]}

Liu, Yongfeng ^{[3
]}

Araujo, C. Moyses ^{[4
]}

Scheicher, Ralph H. ^{[4
]}

Blomqvist, Andreas ^{[4
]}

Ahuja, Rajeev ^{[4
]}

Xiong, Zhitao ^{[1
]}

Yang, Ping ^{[5
]}

Gao, Mingxia ^{[3
]}

Pan, Hongge ^{[3
]}

Chen, Ping ^{[1
,2
]}

机构：

[1] Dalian Inst Chem Phys, Dalian 116023, Peoples R China

[2] Natl Univ Singapore, Dept Phys, Singapore 117542, Singapore

[3] Zhejiang Univ, Dept Mat Sci & Engn, Hangzhou 310027, Peoples R China

[4] Uppsala Univ, Dept Phys, S-75121 Uppsala, Sweden

[5] Natl Univ Singapore, Singapore 117603, Singapore

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2009年 / 48卷 / 32期

关键词：

dehydrogenation; reaction kinetics; imides; hydrogen; potassium; N-H SYSTEM; IMIDES; AMIDE;

D O I：

10.1002/anie.200805264

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Using KH as an additive to Mg(NH2)2/LiH drastically improves hydrogen desorption, which begins at ca. 80 °C (see graph). Circa 5 wt % of hydrogen can be reversibly desorbed and absorbed at about 107 °C. The presence of potassium in the reacting system weakens the amide N-H and imide Li-N bonds, leading to enhanced reaction kinetics. © 2009 Wiley-VCH Verlag GmbH & Co. KGaA.

引用

页码：5828 / 5832

页数：5

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