Purification of single-wall carbon nanotubes

被引:235
作者
Shi, ZJ [1 ]
Lian, YF [1 ]
Liao, FH [1 ]
Zhou, XH [1 ]
Gu, ZN [1 ]
Zhang, YG [1 ]
Iijima, S [1 ]
机构
[1] Peking Univ, Dept Chem, Beijing 100871, Peoples R China
基金
中国国家自然科学基金;
关键词
fullerenes; chemical synthesis; scanning and transmission electron microscopy;
D O I
10.1016/S0038-1098(99)00278-1
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
With Y-Ni alloy and CaC2-Ni as catalyst, large-scale single-wall carbon nanotubes (SWCNTs) were produced by d.c. arc-discharge method. The yield of SWCNTs and the composition of the raw-soot was quantified with thermogravimetric analysis (TGA). The burning temperature of SWCNTs in air was also determined. On these bases, 350 degrees C was chosen for the first step purification of SWCNTs. Combining with the micro-filtration method, larger than 90% purity of SWCNTs and high purity of carbon nanoparticles were obtained. (C) 1999 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:35 / 37
页数:3
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