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Article
Sensing Surface Phase Transitions on Fullerene C60 Nanospheres in Water-Ethanol Mixture
Proceedings of the Electrical Insulation Conference and Electrical Manufacturing and Coil Winding Conference
  • Mostafa M. El-Ashry
  • Maher S. Amer, Wright State University - Main Campus
  • John F. Maguire
Document Type
Article
Publication Date
1-1-2003
Catalog Record
Catalog Record
Abstract

This paper reports the results of a study of adsorption of small molecules on the surface of buckminsterfullerene, C60 and on single walled carbon nanotubes (SWNT). The pressure dependence of the Raman spectrum was investigated over the range 0-100 kbar in methanol-water mixtures that were used as the pressure-transmitting-fluid (PTF) in a diamond anvil cell. It is found that the spectral shift and its pressure derivative are sensitive to both the applied pressure and to the composition of the PTF. These observations are consistent with an explanation that involves preferential adsorption onto the surface of the C/sub 60/. In particular, the notion of C60 collapse need not be invoked to explain the observations.

DOI
10.1109/EICEMC.2003.1247935
Citation Information
Mostafa M. El-Ashry, Maher S. Amer and John F. Maguire. "Sensing Surface Phase Transitions on Fullerene C60 Nanospheres in Water-Ethanol Mixture" Proceedings of the Electrical Insulation Conference and Electrical Manufacturing and Coil Winding Conference (2003) p. 489 - 492 ISSN: 0780379357
Available at: http://works.bepress.com/maher_amer/44/