Nucleation and growth of carbon nanotubes in a mechano-thermal process

Chen, Ying, Conway, M.J., Fitzgerald, J.D., Williams, J.S. and Chadderton, L.T. 2004, Nucleation and growth of carbon nanotubes in a mechano-thermal process, Carbon, vol. 42, no. 8-9, pp. 1543-1548.


Title Nucleation and growth of carbon nanotubes in a mechano-thermal process
Author(s) Chen, Ying
Conway, M.J.
Fitzgerald, J.D.
Williams, J.S.
Chadderton, L.T.
Journal name Carbon
Volume number 42
Issue number 8-9
Start page 1543
End page 1548
Publisher Elsevier Ltd
Place of publication New York, N.Y.
Publication date 2004
ISSN 0008-6223
1873-3891
Keyword(s) carbon nanotubes
grinding
annealing
Summary Separate nucleation and growth processes of carbon nanotubes were found in a mechano-thermal method in which carbon nanotubes are produced by first mechanical milling of graphite powder at room temperature and subsequent thermal annealing up to 1400 °C. The ball-milled graphite contains nucleation structures (nanosized metal particles and deformed (0 0 2) layers containing pentagons), and disordered carbon as a free carbon atom source. The subsequent annealing activates the growth of two types of multi-walled nanotubes in the absence of carbon vapor. Thin nanotubes (diameter <20 nm) are formed via crystallization of the disordered carbon with the preferred formation of the (0 0 2) basal planes. Thick nanotubes (diameter >20 nm) are formed through a metal catalytic solution–precipitation process (solid–liquid–solid). In both cases, carbon nanotubes grew out from disordered carbon particles with closed tips.
Notes Available online 16 March 2004
Language eng
Field of Research 100706 Nanofabrication, Growth and Self Assembly
HERDC Research category C1.1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2004, Elsevier Ltd
Persistent URL http://hdl.handle.net/10536/DRO/DU:30016473

Document type: Journal Article
Collection: Institute for Technology Research and Innovation
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