Kinetics of catalytic hydrolysis of stabilized sodium borohydride solutions

被引：82

作者：

Zhang, Qinglin ^{[1
]}

Wu, Ying ^{[1
]}

Sun, Xiaolei ^{[1
]}

Ortega, Jeff ^{[1
]}

机构：

[1] Millennium Cell Inc, Eatontown, NJ 07724 USA

来源：

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH | 2007年 / 46卷 / 04期

关键词：

D O I：

10.1021/ie061086t

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The kinetics of catalytic hydrolysis of stabilized sodium borohydride solutions has been studied for a Ni-metal supported catalyst over a temperature range from 273 to 303 K and a NaBH4 concentration range from 1.34 to 5.44 M. The rate may be represented by the expression: -(dN(NaBH4)/w center dot dt) = k center dot[NaBH4](-0.41)[NaOH](0.13)[H2O](0.68) k = 11579.1 center dot exp(-6269.9/T) The activation energy for the hydrogen generation reaction was determined to be 52 kJ/mol. The factors affecting energy storage density of sodium borohydride based systems and the performance of hydrogen generation reactors are discussed.

引用

页码：1120 / 1124

页数：5

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