Cas and pressure effects on the production of single-walled carbon nanotubes by laser ablation

被引：49

作者：

Muñoz, E

Maser, WK

Benito, AM

Martínez, MT

de la Fuente, GF

Maniette, Y

Righi, A

Anglaret, E

Sauvajol, JL

机构：

[1] CSIC, Inst Carboquim, Zaragoza 50015, Spain

[2] Univ Zaragoza, CSIC, ICMA, Zaragoza 50015, Spain

[3] Univ Barcelona, Serv Cientifico Tecn, E-08028 Barcelona, Spain

[4] Univ Montpellier 2, Dynam Phases Condensees Grp, F-34095 Montpellier, France

来源：

CARBON | 2000年 / 38卷 / 10期

关键词：

carbon nanotubes; laser irradiation; electron microscopy; Raman spectroscopy;

D O I：

10.1016/S0008-6223(99)00277-8

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 report the production of single-walled carbon nanotubes (SiWNTs) under argon, nitrogen and helium atmospheres in the pressure range of 50 to 500 Torr using a continuous wave 10.6-mu m CO2-laser. Both argon and nitrogen can be equally used as buffer gas to synthesize SWNTs in high yield between 200 and 400 Torr. Below 200 Torr the amount of SWNTs in the soot is drastically decreased and the material is dominated by amorphous carbon. Negligible amounts of SWNTs were formed using helium. These gas and pressure effects are assigned to changes on the local temperature environment. (C) 2000 Elsevier Science Ltd. All rights reserved.

引用

页码：1445 / 1451

页数：7

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