Tomita, S. and Burian, A. and Dore, J.C. and LeBolloch, D. and Fujii, M. and Hayashi, S. (2002) Diamond nanoparticles to carbon onions transformation: X-ray diffraction studies. Carbon, 40 (9). pp. 1469-1474. ISSN 0008-6223.
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Abstract
Carbon onions prepared by high temperature annealing of ultradispersed diamond nanoparticles of about 5 nm in average diameter have been studied by X-ray diffraction using synchrotron radiation. The X-ray diffraction patterns show transformation of the diamond nanoparticles with sp(3) bonds into spherical carbon onions containing remaining diamond-like core and then into polyhedral onions with facets on their outer part and pure sp(2) graphitic bonds. The prepared onions form concentric-shell particles which comprise of about ten shells with an intershell distance of 0.35-0.36 nm. The large intershell distance suggests a considerable reduction in intershell interaction when compared to perfect graphite. The X-ray data are related to the previously performed studies by electron energy-loss spectroscopy and electron spin resonance.
| Item Type: | Article |
|---|---|
| Subjects: | Q Science |
| Divisions: | Faculties > Science Technology and Medical Studies > School of Physical Sciences |
| Depositing User: | Maggie Francis |
| Date Deposited: | 11 Mar 2009 22:49 |
| Last Modified: | 11 Mar 2009 22:49 |
| Resource URI: | http://kar.kent.ac.uk/id/eprint/13419 (The current URI for this page, for reference purposes) |
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