Electrochemical hydrogenation of nanocrystalline face-centered cubic Co powder

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题名:	Electrochemical hydrogenation of nanocrystalline face-centered cubic Co powder
作者:	Chung,SR;Wang,KW;Teng,MH;Perng,TP
贡献者:	化學工程與材料工程學系
关键词:	METAL HYDRIDE ELECTRODES;STORAGE ALLOYS;CRYSTALLINE CO;PARTICLES;REDUCTION;BEHAVIORS;BATTERIES;LITHIUM;SI
日期:	2009
上传时间:	2010-06-29 17:26:50 (UTC+8)
出版者:	中央大學
摘要:	Nanocrystalline face-centered cubic (FCC) Co powder encapsulated within graphite layers was fabricated by an arc discharge method. Its electrochemical hydrogenation properties were investigated and compared with those of the hexagonal close packed (HCP) structure. Both exhibited a similar stabilized discharge capacity of approximately 350 mAh/g that can be attributed to the CoHx/Co reaction. During the cyclic charge/discharge, transition between HCP-Co and FCC-Co took place. Graphite encapsulation was beneficial to the cycle stability of the FCC powder. (C) 2008 International Association for Hydrogen Energy. Published by Elsevier Ltd. All rights reserved.
關聯:	INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
显示于类别:	[化學工程與材料工程研究所] 期刊論文

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