中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Polypropylene as a carbon source for the synthesis of multi-walled carbon nanotubes via catalytic combustion

文献类型:期刊论文

作者Jiang, Zhiwei; Song, Rongjun; Bi, Wuguo; Lu, Jun; Tang, Tao
刊名CARBON
出版日期2007-02-01
卷号45期号:2页码:449-458
ISSN号0008-6223
DOI10.1016/j.carbon.2006.08.012
英文摘要Multi-walled carbon nanotubes (MWCNTs) were efficiently synthesized by catalytic combustion of polypropylene (PP) using nickel compounds (such as Ni2O3, NiO, Ni(OH)(2) and NiCO3 (.) 2Ni(OH)(2)) as catalysts in the presence of organic-modified montmorillonite (OMMT) at 630-830 degrees C. Morphologies of the sample undergoing different combustion times were observed to investigate actual process producing MWCNTs by this method. The obtained MWCNTs were characterized by X-ray diffraction (XRD), transmission electron microscope and Raman spectroscopy. The yield of MWCNTs was affected by the composition of PP mixtures with OMMT and nickel compounds and the combustion temperature. The proton acidic sites from the degraded OMMT layers due to the Hoffman reaction of the modifiers at high temperature played an important role in the catalytic degradation of PP to supply carbon sources that are easy to be catalyzed by nickel catalyst for the growth of MWCNTs. The XRD measurements demonstrated that the nickel compounds were in situ reduced into the Ni(0) state with the aid of hydrogen gas and/or hydrocarbons in the degradation products of PP, and the Ni(O) was really the active site for the growth of MWCNTs. The combination of nickel compounds with OMMT was a key factor to efficiently synthesize MWCNTs via catalytic combustion of PP. (c) 2006 Published by Elsevier Ltd.
语种英语
WOS记录号WOS:000244270600031
出版者PERGAMON-ELSEVIER SCIENCE LTD
源URL[http://ir.iccas.ac.cn/handle/121111/61461]  
专题中国科学院化学研究所
通讯作者Tang, Tao
作者单位1.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China
2.Northeastern Univ, Dept Chem, Shenyang 110004, Peoples R China
推荐引用方式
GB/T 7714
Jiang, Zhiwei,Song, Rongjun,Bi, Wuguo,et al. Polypropylene as a carbon source for the synthesis of multi-walled carbon nanotubes via catalytic combustion[J]. CARBON,2007,45(2):449-458.
APA Jiang, Zhiwei,Song, Rongjun,Bi, Wuguo,Lu, Jun,&Tang, Tao.(2007).Polypropylene as a carbon source for the synthesis of multi-walled carbon nanotubes via catalytic combustion.CARBON,45(2),449-458.
MLA Jiang, Zhiwei,et al."Polypropylene as a carbon source for the synthesis of multi-walled carbon nanotubes via catalytic combustion".CARBON 45.2(2007):449-458.

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来源:化学研究所

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