Raman study of carbon nanotube purification using atmospheric pressure plasma

被引：43

作者：

Lee, Szetsen ^{[1
,2
]}

Peng, Jr-Wei ^{[1
,2
]}

Liu, Chih-Hung ^{[3
]}

机构：

[1] Chung Yuan Christian Univ, Dept Chem, Tao Yuan 32023, Taiwan

[2] Chung Yuan Christian Univ, Ctr Nanotechnol, Tao Yuan 32023, Taiwan

[3] Ind Technol Res Inst, Mech & Syst Res Labs, Hsinchu 31040, Taiwan

来源：

CARBON | 2008年 / 46卷 / 15期

关键词：

D O I：

10.1016/j.carbon.2008.09.029

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：

Multiwalled carbon nanotubes (MWCNTs) were treated with an atmospheric pressure plasma source using an argon/water mixture. Optical emission diagnostics has shown that hydroxyl radicals (OH) were the major reactive species in the plasma. The structural changes in MWCNTs were monitored by micro-Raman spectroscopy. The observed variation of the D and G band intensity ratio and position dispersion with plasma treatment time was ascribed to the change in structural disorder on MWCNT surfaces. Scanning electron microscopic study showed that some defects can be induced in MWCNTs during plasma treatment. Results of thermogravimetric analysis indicated that atmospheric pressure OH plasma is as effective as traditional wet methods for purifying MWCNTs. (C) 2008 Elsevier Ltd. All rights reserved.

引用

页码：2124 / 2132

页数：9

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