Microstructure and growth of bamboo-shaped carbon nanotubes

Xixiang Zhang*, Z. Q. Li, G. H. Wen, K. K. Fung, Jiuling Chen, Yongdan Li

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

106 Scopus citations

Abstract

Bamboo-shaped carbon nanotubes fabricated by the catalytic growth method with Ni/metallic oxide catalyst are systematically studied using transmission electron microscopy. It is found that except for the nodes the bamboo-shaped carbon nanotubes can be regarded as stacking of truncated conical graphene sheets. Depending on the size of a catalyst, the Ni particles can be encapsulated inside the tubes or at the growth front of the tubes with a plug-shape. A linear relationship between size of the nanotube and the catalyst particle is found. The results suggest that the nanometer-sized Ni catalyst particles are in the liquid state during nanotube growth. A simple model for the growth of bamboo-shaped nanotubes is proposed.

Original languageEnglish (US)
Pages (from-to)509-514
Number of pages6
JournalChemical Physics Letters
Volume333
Issue number6
DOIs
StatePublished - Jan 26 2001

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

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