Cobalt-catalyzed hydrogen desorption from the LiNH2-LiBH4 system

被引：58
|
作者：
Tang, Wan Si [1 ]
Wu, Guotao [2 ]
Liu, Tao [3 ]
Wee, Andrew T. S. [2 ,3 ]
Yong, Chaw Keong [2 ]
Xiong, Zhitao [1 ]
Hor, Andy T. S. [1 ]
Chen, Ping [1 ,2 ]
机构：
[1] Natl Univ Singapore, Dept Chem, Singapore 117542, Singapore
[2] Natl Univ Singapore, Dept Phys, Singapore 117542, Singapore
[3] Singapore Synchrotron Light Source, Singapore 117603, Singapore
来源：
DALTON TRANSACTIONS | 2008年 / 18期
关键词：
D O I：
10.1039/b719420j
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
A doping of 5 wt% CoCl(2) considerably decreases the dehydrogenation temperature of a mixture of LiNH(2) and LiBH(4). More that 8 wt% of hydrogen can be released at ca. 155 degrees C. X-Ray absorption near edge structure (XANES) spectroscopy indicated the formation of metallic Co after ball milling CoCl(2) with LiNH(2) and LiBH(4). Extended X-ray absorption fine structure (EXAFS) spectroscopy measurements revealed that Co particles have poor crystallinity and are finely dispersed in the sample, which could lead to a high catalytic efficiency.
引用
收藏
页码：2395 / 2399
页数：5
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