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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, Bilu1; Tang, Dai-Ming1; Sun, Chenghua2,3; Liu, Chang1; Ren, Wencai1; Li, Feng1; Yu, Wan-Jing1; Yin, Li-Chang1; Zhang, Lili1; Jiang, Chuanbin1; Cheng, Hui-Ming1
Corresponding AuthorRen, Wencai(wcren@imr.ac.cn)
2011-01-19
Source PublicationJOURNAL OF THE AMERICAN CHEMICAL SOCIETY
ISSN0002-7863
Volume133Issue:2Pages:197-199
AbstractTo 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.
Funding OrganizationQueensland Government ; UQ ; UQ ECR ; MOST of China ; NSFC ; CAS ; Supercomputing Center, CNIC, CAS
DOI10.1021/ja107855q
Indexed BySCI
Language英语
Funding ProjectQueensland 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 Research AreaChemistry
WOS SubjectChemistry, Multidisciplinary
WOS IDWOS:000286544900010
PublisherAMER CHEMICAL SOC
Citation statistics
Cited Times:92[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/107082
Collection中国科学院金属研究所
Corresponding AuthorRen, Wencai
Affiliation1.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
Recommended Citation
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.
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