Electrochemical charge-discharge capacity of purified single-walled carbon nanotubes

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	Electrochemical charge-discharge capacity of purified single-walled carbon nanotubes
	G. P. Dai; M. Liu; D. M. Chen; P. X. Hou; Y. Tong; H. M. Cheng
	2002
发表期刊	Electrochemical and Solid State Letters
ISSN	1099-0062
卷号	5 期号:4 页码:E13-E15
摘要	Purified single-walled carbon nanotubes (SWNTs) with a large mean diameter of similar to1.85 nm, synthesized by a semicontinuous hydrogen arc discharge method, were employed for electrochemical hydrogen adsorption experiments. A maximal discharge capacity of 316 mAh/g, corresponding to similar to1.2 wt % hydrogen storage, for the purified SWNTs after high-temperature heat-treatment, was achieved reproducibly at 298 K under normal atmosphere. After 100 charge/discharge cycles, more than 81% of the maximal capacity was maintained. Moreover, the plateau of the discharge potential was observed over -0.6 V (vs. Hg/HgO) at a charge/discharge current density of 400 mA/g. Pretreatments, especially heat-treatment, had significant effects on the improvement in the electrochemical capacity of SWNTs. These results imply that the SWNTs have potential for application as electrode materials in secondary hydrogen batteries. (C) 2002 The Electrochemical Society.
部门归属	chinese acad sci, shenyang natl lab mat sci, shenyang 110016, peoples r china. chinese acad sci, inst met res, shenyang 110016, peoples r china.;dai, gp (reprint author), chinese acad sci, shenyang natl lab mat sci, shenyang 110016, peoples r china
关键词	Hydrogen Storage Adsorption
URL	查看原文
WOS记录号	WOS:000175314300012
引用统计	被引频次：34[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/36251
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	G. P. Dai,M. Liu,D. M. Chen,et al. Electrochemical charge-discharge capacity of purified single-walled carbon nanotubes[J]. Electrochemical and Solid State Letters,2002,5(4):E13-E15.
APA	G. P. Dai,M. Liu,D. M. Chen,P. X. Hou,Y. Tong,&H. M. Cheng.(2002).Electrochemical charge-discharge capacity of purified single-walled carbon nanotubes.Electrochemical and Solid State Letters,5(4),E13-E15.
MLA	G. P. Dai,et al."Electrochemical charge-discharge capacity of purified single-walled carbon nanotubes".Electrochemical and Solid State Letters 5.4(2002):E13-E15.