A new purification method of single-wall carbon nanotubes using H2S and O2 mixture gas

被引：60

作者：

Jeong, T ^{[1
]}

Kim, WY ^{[1
]}

Hahn, YB ^{[1
]}

机构：

[1] Chonbuk Natl Univ, Sch Chem Engn & Technol, Semicond Phys Res Ctr, Chonju 561756, South Korea

来源：

CHEMICAL PHYSICS LETTERS | 2001年 / 344卷 / 1-2期

关键词：

D O I：

10.1016/S0009-2614(01)00780-1

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：

A purification process of single-wall carbon nanotubes (SWNTs) combining both the acid treatment to remove metal particles and the gas-phase purification to remove impurity carbon particles has been developed. Acid solution of 3 M HCl was used to remove catalyst metal particles out of the arc-discharge grown SNNWs. Thermal oxidation method using H2S-O-2 gas mixture was followed to preferentially remove carbon particles. Hydrogen sulfide played a role of enhancing the removal of carbon particles as well as suppressing the oxidation of nanotubes. After the combined liquid-gas cleaning process. we achieved carbon nanotubes purity of >95% with yield of 20-50%. (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：18 / 22

页数：5

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