Multi-step purification of carbon nanotubes

IMR OpenIR

	Multi-step purification of carbon nanotubes
	P. X. Hou; S. Bai; Q. H. Yang; C. Liu; H. M. Cheng
	2002
发表期刊	Carbon
ISSN	0008-6223
卷号	40 期号:1 页码:81-85
摘要	An efficient purification procedure for multi-walled carbon nanotubes (MWNTs) synthesized by the floating catalyst method was discussed. The process involves ultra-sonication, heat treatment in hot water, bromination, oxidation and acid treatment. Most of amorphous carbon, multishell carbon nanocapsules as well as metal particles were successfully removed from the MWNT product. With this procedure, MWNTs with purity of more than 94% were obtained and the yield could approach 50%. It was found that bromination took an important role in the purification of MWNTs. Transmission electron microscopy, XPS and thermo-gravimetric analysis were used to evaluate the purification process of MWNTs. The mechanism of bromination on purification of the MWNTs was also discussed. (C) 2002 Elsevier Science Ltd. All rights reserved.
部门归属	chinese acad sci, inst met res, shenyang 110015, peoples r china.;cheng, hm (reprint author), chinese acad sci, inst met res, 72 wenhua rd, shenyang 110015, peoples r china
关键词	Carbon Nanotubes
URL	查看原文
WOS记录号	WOS:000173773400009
引用统计	被引频次：244[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/321006/36290
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	P. X. Hou,S. Bai,Q. H. Yang,et al. Multi-step purification of carbon nanotubes[J]. Carbon,2002,40(1):81-85.
APA	P. X. Hou,S. Bai,Q. H. Yang,C. Liu,&H. M. Cheng.(2002).Multi-step purification of carbon nanotubes.Carbon,40(1),81-85.
MLA	P. X. Hou,et al."Multi-step purification of carbon nanotubes".Carbon 40.1(2002):81-85.