Mechanism of carbon nanotube growth from camphor and camphor analogs by chemical vapor deposition

被引：47

作者：

Andrews, RJ ^{[1
]}

Smith, CF ^{[1
]}

Alexander, AJ ^{[1
]}

机构：

[1] Univ Edinburgh, Sch Chem, Edinburgh EH9 3JJ, Midlothian, Scotland

来源：

CARBON | 2006年 / 44卷 / 02期

基金：

英国工程与自然科学研究理事会;

关键词：

carbon nanotubes; chemical vapor deposition;

D O I：

10.1016/j.carbon.2005.07.025

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Single walled nanotubes have been synthesized by chemical vapor deposition from camphor, camphor analogs (camphorquinone, norcamphor, norbornane, camphene, fenchone), and various other precursors (menthone, 2-decanone, benzene, methane), The high temperature conditions (865 degrees C) and Fe/Mo alumina catalyst used in the syntheses are archetypal conditions for the production of single walled carbon nanotubes. It has been shown that the mechanism of tube growth is unlikely to depend upon the production of reactive five- and six-member rings, as has been previously suggested. The results suggest that the presence of oxygen in the precursor does not significantly improve the quality of tubes by etching amorphous carbon: it is suggested that the control of the flux of the precursor to the catalyst is more important in the production of high quality tubes. There is, however, evidence for different distributions of tube diameter being produced from different precursors. (C) 2005 Elsevier Ltd. All rights reserved.

引用

页码：341 / 347

页数：7

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