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NMR and NEXAFS Study of Various Graphite Fluorides

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Author

  • Y. Ahmad
  • M. Dubois
  • K. Guerin
  • A. Hamwi
  • Z. Fawal
  • A. P. Kharitonov
  • A. V. Generalov
  • A. Yu. Klyushin
  • K. A. Simonov
  • N. A. Vinogradov
  • I. A. Zhdanov
  • Alexei Preobrajenski
  • A. S. Vinogradov
Show all

Summary, in English

Graphite fluorides with different structural types (CyF)(n) (y = 2.5, 2, and 1) and room temperature graphite fluorides were studied by solid state,NMR and NEXAFS. Data extracted from those two techniques are complementary, providing information about the C-F bonding and the hybridization character of the carbon atom valence states. The comparison of data obtained by different methods such as NMR, Raman, and X-ray absorption leads to similar conclusions regarding the chemical bonding in fluorographites. Several major configurations of fluorinated graphites are discussed, that is, planar sheets with mainly sp(2) hybridization in room temperature graphite fluorides and corrugated sheets with sp(3) hybridization in covalent high temperature graphite fluoride. Different references such as highly oriented pyrolytic graphite (HOPG), graphitized carbon nanodiscs (graph-CNDs) and nanodiamonds (NDs) have also been investigated for comparison.

Department/s

Publishing year

2013

Language

English

Pages

13564-13572

Publication/Series

Journal of Physical Chemistry C

Volume

117

Issue

26

Document type

Journal article

Publisher

The American Chemical Society (ACS)

Topic

  • Physical Sciences
  • Natural Sciences

Status

Published

ISBN/ISSN/Other

  • ISSN: 1932-7447