共 18 条
Camphor-a botanical precursor producing garden of carbon nanotubes
被引:59
作者:

Kumar, M
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h-index: 0
机构:
Meijo Univ, Dept Mat Sci & Engn, Tempaku Ku, Nagoya, Aichi 4688502, Japan Meijo Univ, Dept Mat Sci & Engn, Tempaku Ku, Nagoya, Aichi 4688502, Japan

Ando, Y
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h-index: 0
机构:
Meijo Univ, Dept Mat Sci & Engn, Tempaku Ku, Nagoya, Aichi 4688502, Japan Meijo Univ, Dept Mat Sci & Engn, Tempaku Ku, Nagoya, Aichi 4688502, Japan
机构:
[1] Meijo Univ, Dept Mat Sci & Engn, Tempaku Ku, Nagoya, Aichi 4688502, Japan
基金:
日本学术振兴会;
关键词:
nanotubes;
camphor;
pyrolysis;
CVD;
D O I:
10.1016/S0925-9635(02)00341-2
中图分类号:
T [工业技术];
学科分类号:
08 ;
摘要:
Camphor, a botanical precursor, has been found to produce carbon nanotubes in large quantities; like a nanotube garden containing single-wall, multi-wall and aligned-nanotubes. These products grow as a result of thermal decomposition of camphor in argon atmosphere at 875(+/-25) degreesC. The novelty of this new precursor lies in the extremely low catalyst requirement for the realization of pure carbon nanotubes. Single-wall nanotubes are found in low quantity, whereas the yield of multi-wall nanotubes is as high as 90%. Moreover, vertically aligned nanotubes grow on large-area quartz substrates inserted in the reaction zone. Crystallinity of the as-grown nanotubes is fairly good, much better than that of those generally obtained by CVD using conventional hydrocarbons. Formation of amorphous carbon is almost nil, eliminating the need for post-deposition heat treatment. The presence of unwanted catalyst particles is extremely low. (C) 2002 Elsevier Science B.V. All rights reserved.
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页码:998 / 1002
页数:5
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