Investigations of mechanism of carbon nanotube growth

A. G. Nasibulin, P. V. Pikhitsa, P. Queipo, M. Choi, E. I. Kauppinen

Research output: Contribution to journalArticlepeer-review

19 Citations (Scopus)

Abstract

Studies on the formation of single-walled carbon nanotubes by an aerosol method based on the introduction of pre-formed catalyst particles into conditions leading to carbon nanotube synthesis are presented. Carbon monoxide and iron nanoparticles were used as carbon source and catalyst, respectively. The carbon nanotube growth was found to occur at a temperature of around 900 °C in the heating section of the reactor with a growth rate exceeding 1.1 μm/s. A detailed analysis of possible processes during carbon nanotube formation revealed heptagon transformation as a limiting stage. A mechanism for carbon nanotube formation on the basis of the geometrical consideration was proposed.

Original languageEnglish
Pages (from-to)3095-3100
Number of pages6
JournalPhysica Status Solidi (B) Basic Research
Volume243
Issue number13
DOIs
Publication statusPublished - Nov 2006
Externally publishedYes

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