Control of the single-wall carbon nanotube mean diameter in sulphur promoted aerosol-assisted chemical vapour deposition

被引：45

作者：

Barreiro, A.

Kramberger, C.

Ruemmeli, M. H.

Grueneis, A.

Grimm, D.

Hampel, S.

Gemming, T.

Buechner, B.

Bachtold, A.

Pichler, T.

机构：

[1] Leibniz Inst Festkorper & Werkstoffforsch, D-01171 Dresden, Germany

[2] Inst Catal Nanotecnol, E-08193 Bellaterra, Spain

[3] Ctr Nacl Microelect, E-08193 Bellaterra, Spain

[4] Univ Fed Fluminense, Inst Fis, BR-24210346 Niteroi, RJ, Brazil

来源：

CARBON | 2007年 / 45卷 / 01期

基金：

奥地利科学基金会;

关键词：

D O I：

10.1016/j.carbon.2006.08.013

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：

The influence of gas flow on nanotube diameter during the synthesis of high-purity, very long single-wall carbon nanotubes (SWCNT) via aerosol-assisted chemical vapour deposition is reported. The sample morphology, nanotube yield, defect concentration and amount of carbonaceous impurities, as well as the mean diameter and the diameter distribution of the SWCNTs were analysed by combined scanning- and transmission electron microscopy, Fourier Transform Raman spectroscopy and optical absorption spectroscopy. The results show that by using a solution of ferrocene and sulphur in m-xylene the addition of sulphur as a promoter was found to enhance the SWCNT growth and to increase the yield. A reduction of the mean diameter and a change in the diameter distribution are observed when the total gas flow is increased. (c) 2006 Elsevier Ltd. All rights reserved.

引用

页码：55 / 61

页数：7

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