Synthesis of single-wall carbon nanotubes and long nanotube ribbons with Ho/Ni as catalyst by arc discharge

被引：29
|
作者：
Yao, MG
Liu, BB
Zou, YG
Wang, L
Li, DM
Cui, T
Zou, GT
Sundqvist, B
机构：
[1] Jilin Univ, Natl Lab Superhard Mat, Changchun 130012, Peoples R China
[2] Umea Univ, Dept Phys, S-90187 Umea, Sweden
来源：
CARBON | 2005年 / 43卷 / 14期
基金：
中国国家自然科学基金;
关键词：
carbon nanotubes; catalyst; arc discharge; Raman spectroscopy;
D O I：
10.1016/j.carbon.2005.05.019
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：
The effect of a new bimetallic catalyst Ho/Ni for synthesis of single-walled carbon nanotubes (SWNTs) by arc discharge has been studied. Long ribbons consisting roughly-aligned SWNT bundles were obtained by a modified arc discharge apparatus. Ribbon lengths can reach as much as 20 cm. Both elements Ho and Ni play important roles in the synthesis of SWNTs with high yield and purity. Changes in the Ho and Ni concentration in the catalyst hardly affect the diameter distribution of SWNTs, but the yield and purity of SWNTs are very sensitive to the concentration. An optimal range of Ho/Ni compositions for synthesis of SWNTs with relatively high purity and yield is given. (C) 2005 Elsevier Ltd. All rights reserved.
引用
收藏
页码：2894 / 2901
页数：8
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