TITLE

Structural characterization of cup-stacked-type nanofibers with an entirely hollow core

AUTHOR(S)
Endo, M.; Kim, Y. A.; Hayashi, T.; Fukai, Y.; Oshida, K.; Terrones, M.; Yanagisawa, T.; Higaki, S.; Dresselhaus, M. S.
PUB. DATE
February 2002
SOURCE
Applied Physics Letters;2/18/2002, Vol. 80 Issue 7, p1267
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Straight long carbon nanofibers with a large hollow core obtained by a floating reactant method show a stacking morphology of truncated conical graphene layers, which in turn exhibit a large portion of open edges on the outer surface and also in the inner channels. Through a judicious choice of oxidation conditions, nanofibers with increased active edge sites are obtained without disrupting the fiber's morphology. A graphitization process induces a morphological change from a tubular type to a reversing saw-toothed type and the formation of loops along the inner channel of the nanofibers, accompanied by a decrease in interlayer spacing.
ACCESSION #
6112345

 

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