A new understanding of carbon nanotube growth: Different functions of   carbon species

doi:10.1016/j.apsusc.2015.01.117

CORC > 北京大学 > 工学院

	A new understanding of carbon nanotube growth: Different functions of carbon species
	Zhang, Yueling ; Wang, Baojun ; Yu, Qing ; Tian, Yajun
刊名	应用表面科学
	2015
关键词	Chemical vapor deposition Carbon nanotubes Interface dynamics Carbon species Functiona CHEMICAL-VAPOR-DEPOSITION MECHANISM DECOMPOSITION ACTIVATION PRECURSOR METHANE MODEL
DOI	10.1016/j.apsusc.2015.01.117
英文摘要	Understanding the formation mechanism of carbon nanotubes (CNTs) from carbon source is critical for controlled-production of CNTs. In this study, the functions of carbon species were investigated by a thermogravimetric analyzer coupled with a mass spectroscope in using methane as carbon source of CNT growth in chemical vapor deposition (CVD). It was found that a negative peak of C2H2 species and a positive peak of C2H4 species appeared at the CNT growth moment. Accordingly it is deduced that the C2H2 species react on nucleation and C2H4 species react on CNT growth. This deduction is then verified by the computational chemistry results based on density functional theory (DFT). This finding clarifies the different functions of C-2 at growing moment at the first time and makes the controlling of CNT production in such a condition becomes promising. (C) 2015 Elsevier B.V. All rights reserved.; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000350373300098&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; Chemistry, Physical; Materials Science, Coatings & Films; Physics, Applied; Physics, Condensed Matter; SCI(E); EI; 0; ARTICLE; zhangyueling1977@hotmail.com; C; 756-760; 332
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/154071]
专题	工学院
推荐引用方式 GB/T 7714	Zhang, Yueling,Wang, Baojun,Yu, Qing,et al. A new understanding of carbon nanotube growth: Different functions of carbon species[J]. 应用表面科学,2015.
APA	Zhang, Yueling,Wang, Baojun,Yu, Qing,&Tian, Yajun.(2015).A new understanding of carbon nanotube growth: Different functions of carbon species.应用表面科学.
MLA	Zhang, Yueling,et al."A new understanding of carbon nanotube growth: Different functions of carbon species".应用表面科学 (2015).