High purity multiwalled carbon nanotubes under high pressure and high temperature

被引：35

作者：

Corrias, M

Serp, P

Kalck, P

Dechambre, G

Lacout, JL

Castiglioni, C

Kihn, Y

机构：

[1] Ecole Natl Super Ingn Arts Chim & Technol, Lab Catalyse Chim Fine & Polymeres, F-31077 Toulouse, France

[2] Ecole Natl Super Ingn Arts Chim & Technol, CIRIMAT, CNRS, UMR 5085, F-31077 Toulouse, France

[3] Politecn Milan, Dipartimento Chim Mat & Ingn Chim Giulio Natta, I-20100 Milan, Italy

[4] CNRS, CEMES, F-31055 Toulouse, France

来源：

CARBON | 2003年 / 41卷 / 12期

关键词：

carbon nanotubes; high pressure; heat treatment;

D O I：

10.1016/S0008-6223(03)00279-3

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：

We have studied the structural modifications that multi-walled carbon nanotubes (MWNTs) undergo when treated under high pressure and high temperature (HP-HT). Uniaxial pressures of 5.5-6.5 GPa were applied to samples of purified MWNTs between 850 and 950 degreesC for 30 min. The resulting material was then analysed by X-ray diffractometry, Raman spectroscopy and transmission electron microscopy. Comparison of the data obtained by such analyses before and after treatment does show changes in the Raman spectra, a slight linear decrease of the d(002) spacing, and some structural modifications that could be due to MWNT segmentation and interlinking. (C) 2003 Elsevier Ltd. All rights reserved.

引用

页码：2361 / 2367

页数：7

共 21 条

[1]

CAO L, 1999, CARBON, V39, P311

[2] Spontaneous cross linking of small-diameter single-walled carbon nanotubes [J].