Diameter control of single-walled carbon nanotubes

被引：293
作者：
Kataura, H
Kumazawa, Y
Maniwa, Y
Ohtsuka, Y
Sen, R
Suzuki, S
Achiba, Y
机构：
[1] Tokyo Metropolitan Univ, Fac Sci, Dept Phys, Tokyo 1920397, Japan
[2] Tokyo Metropolitan Univ, Fac Sci, Dept Chem, Tokyo 1920397, Japan
来源：
CARBON | 2000年 / 38卷 / 11-12期
基金：
日本学术振兴会;
关键词：
carbon nanotubes; Raman spectroscopy;
D O I：
10.1016/S0008-6223(00)00090-7
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：
Laser furnace technique has been used for diameter selective formation of single-walled carbon nanotubes (SWNTs) using NiCo, RhPt and RhPd catalysts. Particularly RhPd catalyst can produce very thin SWNTs in high yield. In this work, we investigated the furnace temperature dependence for each catalyst to control the diameter of SWNTs more strictly. Further, we investigated the effect of the gas flow velocity to see the growth time of SWNTs. When the how velocity was changed from 1.2 to 12 mm/s, the diameter distributions of the SWNTs obtained were changed significantly. This result suggests that the nucleation and the growth of SWNTs are much slower than the fullerene formation. Using the slow growth nature of SWNTs, there is a possibility of further diameter control of SWNTs. (C) 2000 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码：1691 / 1697
页数：7
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