Importance of Oxygen in the Metal-Free Catalytic Growth of Single-Walled Carbon Nanotubes from SiOx by a Vapor-Solid-Solid Mechanism

doi:10.1021/ja107855q

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	Importance of Oxygen in the Metal-Free Catalytic Growth of Single-Walled Carbon Nanotubes from SiOx by a Vapor-Solid-Solid Mechanism
	Liu, Bilu 1; Tang, Dai-Ming 1; Sun, Chenghua 2,3; Liu, Chang 1; Ren, Wencai 1; Li, Feng 1; Yu, Wan-Jing 1; Yin, Li-Chang 1; Zhang, Lili 1; Jiang, Chuanbin 1; Cheng, Hui-Ming 1
通讯作者	Ren, Wencai(wcren@imr.ac.cn)
	2011-01-19
发表期刊	JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
ISSN	0002-7863
卷号	133 期号:2 页码:197-199
摘要	To understand in-depth the nature of the catalyst and the growth mechanism of single-walled carbon nanotubes (SWCNTs) on a newly developed silica catalyst, we performed this combined experimental and theoretical study. In situ transmission electron microscopy (TEM) observations revealed that the active catalyst for the SWCNT growth is solid and amorphous SiOx nanoparticles (NPs), suggesting a vapor-solid-solid growth mechanism. From in situ TEM and chemical vapor deposition growth experiments, we found that oxygen plays a crucial role in SWCNT growth in addition to the well-known catalyst size effect. Density functional theory calculations showed that oxygen atoms can enhance the capture of-CHx and consequently facilitate the growth of SWCNTs on oxygen-containing SiOx NPs.
资助者	Queensland Government ; UQ ; UQ ECR ; MOST of China ; NSFC ; CAS ; Supercomputing Center, CNIC, CAS
DOI	10.1021/ja107855q
收录类别	SCI
语种	英语
资助项目	Queensland Government ; UQ ; UQ ECR ; MOST of China[2011CB932601] ; MOST of China[2008DFA51400] ; NSFC[50921004] ; NSFC[50702063] ; NSFC[50672103] ; CAS[KJCX2-YW-M01] ; Supercomputing Center, CNIC, CAS
WOS研究方向	Chemistry
WOS类目	Chemistry, Multidisciplinary
WOS记录号	WOS:000286544900010
出版者	AMER CHEMICAL SOC
引用统计	被引频次：106[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/321006/107082
专题	中国科学院金属研究所
通讯作者	Ren, Wencai
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 2.Univ Queensland, Australian Inst Bioengn & Nanotechnol, Ctr Computat Mol Sci, Brisbane, Qld 4072, Australia 3.Univ Queensland, Sch Engn, ARC Ctr Excellence Funct Nanomat, Brisbane, Qld 4072, Australia
推荐引用方式 GB/T 7714	Liu, Bilu,Tang, Dai-Ming,Sun, Chenghua,et al. Importance of Oxygen in the Metal-Free Catalytic Growth of Single-Walled Carbon Nanotubes from SiOx by a Vapor-Solid-Solid Mechanism[J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY,2011,133(2):197-199.
APA	Liu, Bilu.,Tang, Dai-Ming.,Sun, Chenghua.,Liu, Chang.,Ren, Wencai.,...&Cheng, Hui-Ming.(2011).Importance of Oxygen in the Metal-Free Catalytic Growth of Single-Walled Carbon Nanotubes from SiOx by a Vapor-Solid-Solid Mechanism.JOURNAL OF THE AMERICAN CHEMICAL SOCIETY,133(2),197-199.
MLA	Liu, Bilu,et al."Importance of Oxygen in the Metal-Free Catalytic Growth of Single-Walled Carbon Nanotubes from SiOx by a Vapor-Solid-Solid Mechanism".JOURNAL OF THE AMERICAN CHEMICAL SOCIETY 133.2(2011):197-199.