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

S. Tang*, Z. Zhong, Z. Xiong, L. Sun, L. Liu, J. Lin, Z. X. Shen, K. L. Tan

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

166 Scopus citations

Abstract

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.

Original languageEnglish
Pages (from-to)19-26
Number of pages8
JournalChemical Physics Letters
Volume350
Issue number1-2
DOIs
StatePublished - 14 Dec 2001
Externally publishedYes

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