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	Catalytic synthesis of carbon nanotubes from the decomposition of methane over a ni-co/la2o3 catalyst
	Chen, Long1,2; Liu, Haitao1,2; Yang, Keli1,2; Wang, Jiankang1,2; Wang, Xiaolai1
刊名	Canadian journal of chemistry-revue canadienne de chimie
	2009
卷号	87期号:1页码:47-53
关键词	Carbon nanotubes Catalytic chemical vapour deposition Methane decomposition Ni-co/la2o3 catalyst
ISSN号	0008-4042
DOI	10.1139/v08-077
通讯作者	Wang, xiaolai(chenlong2000_1984@26.com)
英文摘要	The production of multi-walled carbon nanotubes (mwnts) by the catalytic chemical vapour deposition (ccvd) method was examined over a series of ni-co/la2o3 catalysts with methane as the carbon source. the catalyst composition and the reaction conditions were optimized by analyzing the effluent gas with gas chromatography. various techniques, such as x-ray diffraction (xrd), transmission electron microscopy (tem), raman spectra, and thermal gravimetric analysis (tga) were used to characterize the catalysts and products. the results indicate that the unreduced catalyst 30ni-10co/la2o3 showed the highest activity for methane decomposition, and the highest carbon yield, being 624.2%, was obtained over this catalyst at 700 degrees c after 60 min of reaction with hydrogen as carrier gas. tga results suggest that the purity of carbon nanotubes (cnts) can reach up to 98 wt% after a single-step purification by hydrochloric acid.
WOS关键词	PREPARED IN-SITU ; LARGE-SCALE SYNTHESIS ; COBALT CATALYSTS ; CVD SYNTHESIS ; SINGLE ; REDUCTION ; GROWTH ; FE ; NANOFIBERS ; PARTICLES
WOS研究方向	Chemistry
WOS类目	Chemistry, Multidisciplinary
语种	英语
出版者	CANADIAN SCIENCE PUBLISHING, NRC RESEARCH PRESS
WOS记录号	WOS:000261900400007
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2399452
专题	中国科学院大学
通讯作者	Wang, Xiaolai
作者单位	1.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Oxo Synth & Select Oxidat, Lanzhou 730000, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100039, Peoples R China
推荐引用方式 GB/T 7714	Chen, Long,Liu, Haitao,Yang, Keli,et al. Catalytic synthesis of carbon nanotubes from the decomposition of methane over a ni-co/la2o3 catalyst[J]. Canadian journal of chemistry-revue canadienne de chimie,2009,87(1):47-53.
APA	Chen, Long,Liu, Haitao,Yang, Keli,Wang, Jiankang,&Wang, Xiaolai.(2009).Catalytic synthesis of carbon nanotubes from the decomposition of methane over a ni-co/la2o3 catalyst.Canadian journal of chemistry-revue canadienne de chimie,87(1),47-53.
MLA	Chen, Long,et al."Catalytic synthesis of carbon nanotubes from the decomposition of methane over a ni-co/la2o3 catalyst".Canadian journal of chemistry-revue canadienne de chimie 87.1(2009):47-53.

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