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Carbon nanotubes formed in graphite after mechanical grinding and thermal annealing

journal contribution
posted on 01.03.2003, 00:00 authored by Ying (Ian) ChenYing (Ian) Chen, M Conway, J Fitzgerald
Multi-walled carbon nanotubes with cylindrical and bamboo-type structures are produced in a graphite sample after mechanical milling at ambient temperature and subsequent thermal annealing up to 1400 °C. The ball milling produces a precursor structure and the thermal annealing activates the nanotube growth. Different nanotubular structures indicate different formation mechanisms: multi-wall cylindrical carbon nanotubes are probably formed upon micropores and the bamboo tubes are produced because of the metal catalysts. A two-dimensional growth governed by surface diffusion is believed to be one important factor for the nanotube growth. A potential industrial production method is demonstrated with advantages of large production quantity and low cost.

History

Journal

Applied physics A : materials science & processing

Volume

76

Issue

4

Pagination

633 - 636

Publisher

Springer Berlin

Location

Heidelberg, Germany

ISSN

0947-8396

eISSN

1432-0630

Language

eng

Notes

Published online: 4 December 2002

Publication classification

C1.1 Refereed article in a scholarly journal; C Journal article

Copyright notice

2002, Springer-Verlag