Opening and thinning of multiwall carbon nanotubes in supercritical water

被引：39

作者：

Chang, JY ^{[1
]}

Ghule, A ^{[1
]}

Chang, JJ ^{[1
]}

Tzing, SH ^{[1
]}

Ling, YC ^{[1
]}

机构：

[1] Natl Tsing Hua Univ, Dept Chem, Hsinchu 30043, Taiwan

来源：

CHEMICAL PHYSICS LETTERS | 2002年 / 363卷 / 5-6期

关键词：

D O I：

10.1016/S0009-2614(02)01283-6

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：

Supercritical water (SCW) in the presence and absence of oxygen is used for the first time for the opening and thinning of multiwall carbon nanotubes (MWNTs). The influence of variation of pressure, temperature, and time on the opening and thinning of MWNTs is examined. In SCW, opening and thinning of MWNTs is observed both in the presence and absence of oxygen. In addition, the presence of oxygen (similar to2 mmol) shows improved thinning of MWNTs with the collapsed outer graphene layers tending towards the inner layers. The morphology of MWNTs are critically analyzed using transmission electron micrographs (TEM) and Raman spectra. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：583 / 590

页数：8

共 35 条

[1] Nanotubes from carbon [J].