Synthesis and purification of single-walled carbon nanotubes in the cottonlike soot

被引：49

作者：

Li, HJ ^{[1
]}

Feng, L ^{[1
]}

Guan, LH ^{[1
]}

Shi, ZJ ^{[1
]}

Gu, ZN ^{[1
]}

机构：

[1] Peking Univ, Coll Chem & Mol Engn, Dept Chem, Beijing 100871, Peoples R China

来源：

SOLID STATE COMMUNICATIONS | 2004年 / 132卷 / 3-4期

基金：

中国博士后科学基金; 中国国家自然科学基金;

关键词：

single-walled carbon nanotubes; cottonlike raw soot;

D O I：

10.1016/j.ssc.2004.07.045

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The cottonlike soot with single-walled carbon nanotubes (SWNTs) is synthesized in large quantity under an improved arc discharge condition. It is found that the soot obtained under this condition contains much fewer multi-shell graphite particles compared to the clothlike soot produced earlier by our group and is much easier to be purified. High-purity SWNTs were obtained by combining oxidation in air and microwave-assisted acid treatment without multi-step filtration. SWNT purity was evaluated by SEM, TEM, thermogravimetric analysis, and Raman spectroscopy. Furthermore, the formation mechanism of the cottonlike soot is also discussed. (C) 2004 Elsevier Ltd. All rights reserved.

引用

页码：219 / 224

页数：6

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