The thermal decomposition of ammonia borane: A potential hydrogen storage material

被引：90

作者：

Bowden, Mark ^{[1
,2
]}

Autrey, Tom ^{[3
]}

Brown, Ian ^{[1
,2
]}

Ryan, Martin ^{[1
]}

机构：

[1] Ind Res Ltd, Lower Hutt, New Zealand

[2] MacDiarmid Inst Adv Mat & Nanotechnol, Wellington, New Zealand

[3] Pacific NW Natl Lab, Richland, WA 99252 USA

来源：

CURRENT APPLIED PHYSICS | 2008年 / 8卷 / 3-4期

关键词：

hydrogen storage; mechanism; kinetics;

D O I：

10.1016/j.cap.2007.10.045

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

One equivalent of hydrogen gas is evolved from ammonia borane (NH3BH3) when it is heated above 70 degrees C. The initial stages of this process have been examined using TG/DSC, optical microscopy, and high temperature X-ray diffraction. Two exothermic events have been observed, the first of which takes place without hydrogen evolution. During this stage, the sample loses its crystallinity and bire-fringence. The products are believed to be a more mobile form of NH3BH3 and the diammoniate of diborane ([NH3BH2NH3](+)[BH4](-)). These products subsequently react in the second exothermic stage to generate hydrogen. (C) 2007 Elsevier B.V. All rights reserved.

引用

页码：498 / 500

页数：3

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