Structural characterization of cup-stacked-type nanofibers with an entirely hollow core
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- 14 February 2002
- journal article
- conference paper
- Published by AIP Publishing in Applied Physics Letters
- Vol. 80 (7) , 1267-1269
- https://doi.org/10.1063/1.1450264
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.Keywords
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