Low-temperature, nonlinear rapid growth of aligned carbon nanotubes

被引:33
作者
Ting, JM [1 ]
Liao, KH [1 ]
机构
[1] Natl Cheng Kung Univ, Dept Mat Sci & Engn, Tainan 701, Taiwan
关键词
D O I
10.1016/j.cplett.2004.08.084
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
This Letter reports the growth of well-aligned carbon nanotubes (CNTs) having increased growth rate at reduced growth temperature as a result of using Fe-Si as the catalyst. Fe-Si catalyst leads to not only a low growth temperature of 370 degreesC but also an unprecedented, rapid growth kinetics. The lengthening of CNTs was found to be proportional to t(15) where t is the growth time. The use of Fe-Si as the catalyst enhances the carbon diffusivity in the catalyst. Due to the enhanced carbon diffusivity and the nonlinear growth kinetics, a reaction-controlled growth model is suggested. (C) 2004 Elsevier B.V. All rights reserved.
引用
收藏
页码:469 / 472
页数:4
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