Controlled growth of single-walled carbon nanotubes by catalytic decomposition of CH4 over Mo/Co/MgO catalysts

被引：168

作者：

Tang, S ^{[1
]}

Zhong, Z ^{[1
]}

Xiong, Z ^{[1
]}

Sun, L ^{[1
]}

Liu, L ^{[1
]}

Lin, J ^{[1
]}

Shen, ZX ^{[1
]}

Tan, KL ^{[1
]}

机构：

[1] Natl Univ Singapore, Dept Phys, Surface Sci Lab, Singapore 119260, Singapore

来源：

CHEMICAL PHYSICS LETTERS | 2001年 / 350卷 / 1-2期

关键词：

D O I：

10.1016/S0009-2614(01)01183-6

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：

It was found that the addition of molybdenum to Co/MgO catalysts could remarkably increase the yield and also improve the quality of single-walled carbon nanotubes (SWNTs) from catalytic decomposition of methane. The generation rate of SWNTs was raised at least 10 times and the formation of amorphous carbon was suppressed. But there is an optimum content of Mo and Co, beyond which multi-walled carbon nanotubes (MWNTs) were formed. In other words, the relative amount of SWNTs and MWNTs could be controlled by the composition of catalysts. The obtained SWNTs showed a very high BET surface area. The promotion role of molybdenum was discussed. (C) 2001 Published by Elsevier Science B.V.

引用

页码：19 / 26

页数：8

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