The effects of acid treatment methods on the diameter dependent length separation of single walled carbon nanotubes

被引：24

作者：

Kim, Youngjin

Lee, Dockjin

Oh, Youngseok

Choi, Jaeboong

Baik, Seunghyun ^{[1
]}

机构：

[1] Sungkyunkwan Univ, Sch Mech Engn, Suwon 440746, KyungGi Do, South Korea

[2] Sungkyunkwan Univ, SAINT, Suwon 440746, KyungGi Do, South Korea

来源：

SYNTHETIC METALS | 2006年 / 156卷 / 16-17期

关键词：

single walled carbon nanotubes; acid treatment methods; Raman spectroscopy; length separation;

D O I：

10.1016/j.synthmet.2006.06.004

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The effects of acid treatment methods on the diameter dependent length separation of single walled carbon nanotubes were investigated using gel electrophoresis and Raman spectroscopic techniques. Carbon nanotubes were chemically treated using a mixture of H2SO4 and HNO3. The mechanism of gel electrophoresis is based on the migration of charged particles in an electric field, and the gel matrix acts as a sieve for the analyte. A comparative Raman spectroscopy analysis, performed on the migrated nanotubes in the gel, demonstrated that smaller diameter tubes were preferentially shortened by the acid treatments and moved farther during the gel electrophoresis. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：999 / 1003

页数：5

共 13 条

[1] Purification and characterization of single-wall carbon nanotubes (SWNTs) obtained from the gas-phase decomposition of CO (HiPco process) [J].