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https://www.ias.ac.in/article/fulltext/boms/035/01/0033-0040

Carbon nanotube; aromatization reaction; nickel.

In a typical chemical vapour deposition (CVD) process for synthesizing carbon nanotubes (CNTs), it was found that the aromatization catalysts could promote effectively the formation of CNT. The essence of this phenomenon was attributed to the fact that the aromatization catalyst can accelerate the dehydrogenation–cyclization and condensation reaction of carbon source, which belongs to a necessary step in the formation of CNTs. In this work, aromatization catalysts, H-beta zeolite, HZSM-5 zeolite and organically modified montmorillonite (OMMT) were chosen to investigate their effects on the formation of multi-walled carbon nanotubes (MWCNTs) via pyrolysis method when polypropylene and 1-hexene as carbon source and Ni₂O₃ as the charring catalyst. The results demonstrated that the combination of those aromatization catalysts with nickel catalyst can effectively improve the formation of MWCNTs.

Song Rongjun^{1 2} Yang Yunpeng^{1 2} Ji Qing^{1 2} Li Bin^{1 2}

1. Department of Chemistry, College of Science, Northeast Forestry University, Harbin 150040, China
2. Heilongjiang Key Laboratory of Flame Retarded Polymeric Materials, Education Department of Heilongjiang Province, Heilongjiang, China

Published

February 2012

Manuscript received

17 January 2009

Manuscript revised

30 January 2011