A simple and universal method for fabricating linear carbon chains in multiwalled carbon nanotubes

被引：14
|
作者：
Sheng, Leimei [1 ,2 ]
Jin, Aijin [1 ,2 ]
Yu, Liming [1 ,2 ]
An, Kang [1 ,2 ]
Ando, Yoshinori [3 ]
Zhao, Xinluo [1 ,2 ]
机构：
[1] Shanghai Univ, Dept Phys, Shanghai 200444, Peoples R China
[2] Shanghai Univ, Inst Low Dimens Carbons & Device Phys, Shanghai 200444, Peoples R China
[3] Meijo Univ, Dept Mat Sci & Engn, Nagoya, Aichi 4688502, Japan
来源：
MATERIALS LETTERS | 2012年 / 81卷
基金：
中国国家自然科学基金;
关键词：
Arc discharge; High-temperature treatment; Carbon chain; Carbon nanotube; Carbon nanowire; Raman; RAMAN-SCATTERING;
D O I：
10.1016/j.matlet.2012.04.140
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Long linear carbon chains (C-chains) have been fabricated inside multiwalled carbon nanotubes (MWCNTs) by a simple method based on high-temperature treatment of MWCNTs with the innermost tube diameters of similar to 0.7 nm. The MWCNTs were prepared by hydrogen arc discharge, and then were fully purified by heat-treatment in air. After the purified MWCNTs were heated at 1500 degrees C in inert atmosphere, the characteristic Raman peak of carbon nanowires (CNWs) were found to appear at similar to 1855 cm(-1), showing the formation of C-chain inside MWCNTs, i.e. C-chain@MWCNT. Raman spectra of CNWs prepared by high-temperature treatment of MWCNTs including double-walled carbon nanotubes and by hydrogen arc discharge are compared, and the formation mechanism is discussed. (C) 2012 Elsevier By. All rights reserved.
引用
收藏
页码：222 / 224
页数：3
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