Hydrogen adsorption/desorption behavior of multi-walled carbon nanotubes with different diameters

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	Hydrogen adsorption/desorption behavior of multi-walled carbon nanotubes with different diameters
	P. X. Hou ; S. T. Xu ; Z. Ying ; Q. H. Yang ; C. Liu ; H. M. Cheng
刊名	Carbon
	2003
卷号	41 期号:13 页码:2471-2476
关键词	carbon nanotubes chemical vapor deposition adsorption transmission electron microscopy (TEM) adsorption properties graphite nanofibers storage adsorption simulations arrays
ISSN号	0008-6223
中文摘要	Multi-walled carbon nanotubes (MWNTs) with different mean outer diameters in the range of 13-53 nm, synthesized by the catalytic decomposition of hydrocarbons using a floating catalyst method, were purified and pretreated with the same procedure for volumetric hydrogen adsorption/desorption measurements. It was found that the hydrogen storage capacity of the purified and pretreated MWNTs was proportional to their diameter, and that hydrogen in all types of MWNTs measured could not be completely desorbed at room temperature and ambient pressure. A possible mechanism for the above behavior was proposed based on the results of cryogenic nitrogen adsorption analysis and high-resolution transmission electron microscopy observations. It was considered that small "carbon islands" might be the main hydrogen adsorption site in MWNTs. The effects of metal catalyst as well as an etched cavity on the surface of MWNTs on the hydrogen adsorption/desorption of MWNTs were also discussed. (C) 2003 Elsevier Ltd. All rights reserved.
原文出处	://WOS:000185878100002
公开日期	2012-04-14
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/35850]
专题	金属研究所_中国科学院金属研究所
推荐引用方式 GB/T 7714	P. X. Hou,S. T. Xu,Z. Ying,et al. Hydrogen adsorption/desorption behavior of multi-walled carbon nanotubes with different diameters[J]. Carbon,2003,41(13):2471-2476.
APA	P. X. Hou,S. T. Xu,Z. Ying,Q. H. Yang,C. Liu,&H. M. Cheng.(2003).Hydrogen adsorption/desorption behavior of multi-walled carbon nanotubes with different diameters.Carbon,41(13),2471-2476.
MLA	P. X. Hou,et al."Hydrogen adsorption/desorption behavior of multi-walled carbon nanotubes with different diameters".Carbon 41.13(2003):2471-2476.