Effects of catalyst pre-treatment on the growth of single-walled carbon nanotubes by microwave CVD

被引：13

作者：

Bartsch, K. ^{[1
]}

Arnold, B. ^{[1
]}

Kaltofen, R. ^{[1
]}

Taeschner, C. ^{[1
]}

Thomas, J. ^{[1
]}

Leonhardt, A. ^{[1
]}

机构：

[1] Leibniz Inst Solid State & Mat Res Dresden, D-1069 Dresden, Germany

来源：

CARBON | 2007年 / 45卷 / 03期

关键词：

D O I：

10.1016/j.carbon.2006.10.022

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：

Layers of carbon nanotubes were deposited by microwave CVD on oxidized silicon substrates coated with Al-Fe-Mo catalyst films. To achieve a tube growth at about 973 K, the ion bombardment of the catalyst surface has to be avoided. The appropriate pre-treatment of the substrates is essential for the deposition of single-walled carbon nanotubes. Annealing in air is preferable to the frequently used reducing pre-treatment prior to the deposition as a higher area density of the tubes and a better reproducibility of deposition can be obtained. To figure out this finding, selected samples were investigated by analytical transmission electron microscopy and Raman spectroscopy. It is shown that the pre-treatment has a strong effect on the size and distribution of the catalyst particles. (c) 2006 Elsevier Ltd. All rights reserved.

引用

页码：543 / 552

页数：10

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