Electrochemical Hydrogenation of Crystalline Co Powder

The electrochemical hydrogenation properties of two boron-free crystalline Co powder samples were investigated. They exhibited almost the same maximum discharge capacities with 2-h charging, 415 and 428 mAh/g (corresponding to CoH0.91 and CoH0.93) for samples A and B, respectively. The high discharg...

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Bibliographic Details
Published in:Journal of the Electrochemical Society 2006, Vol.153 (6), p.A1128-A1131
Main Authors: Chung, S.-R., Wang, K.-W., Perng, T.-P.
Format: Article
Language:English
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Summary:The electrochemical hydrogenation properties of two boron-free crystalline Co powder samples were investigated. They exhibited almost the same maximum discharge capacities with 2-h charging, 415 and 428 mAh/g (corresponding to CoH0.91 and CoH0.93) for samples A and B, respectively. The high discharge capacity of Co powder was attributed to hydrogenation of Co and phase transition between the phases of hexagonal close-packed and face centered cubic.
ISSN:0013-4651
DOI:10.1149/1.2189978