On the growth mechanism of single-walled carbon nanotubes by catalytic carbon vapor deposition on supported metal catalysts

被引：42

作者：

Nagy, JB ^{[1
]}

Bister, G

Fonseca, A

Méhn, D

Kónya, Z

Kiricsi, I

Horváth, ZE

Biró, LP

机构：

[1] Fac Univ Notre Dame Paix, Nucl Magnet Resonance Lab, B-5000 Namur, Belgium

[2] Univ Szeged, Appl & Environm Chem Dept, Szeged, Hungary

[3] Res Inst Tech Phys & Mat Sci, Budapest, Hungary

来源：

JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY | 2004年 / 4卷 / 04期

关键词：

nanotube; growth; synthesis; mechanism; catalyst; catalytic chemical vapor deposition; carbon;

D O I：

10.1166/jnn.2004.069

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A comprehensive kinetic study was performed to throw light on the formation mechanism of single walled carbon nanotubes (SWNTs) in chemical vapor deposition processes. SWNTs were synthesized by catalytic decomposition of methane or ethylene on supported transition metal catalysts. Kinetic curves (the amount of SWNT as a function of time) were obtained as a function of the nature and the preparation of the supported catalysts, temperature, the fluxes of the gases (the reagent hydrocarbon and the carrying gas), and the partial pressure of the hydrocarbon. The final products were characterized by transmission electron microscopy, Raman spectroscopy, chemical analysis, and thermogravimetric measurements. The fundamental factors determining the SWNT formation are discussed in detail, taking into consideration several observations from the literature as well.

引用

页码：326 / 345

页数：20

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