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NMR and NEXAFS Study of Various Graphite Fluorides

Författare

  • 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

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.

Publiceringsår

2013

Språk

Engelska

Sidor

13564-13572

Publikation/Tidskrift/Serie

Journal of Physical Chemistry C

Volym

117

Issue

26

Dokumenttyp

Artikel i tidskrift

Förlag

The American Chemical Society (ACS)

Ämne

  • Physical Sciences
  • Natural Sciences

Status

Published

ISBN/ISSN/Övrigt

  • ISSN: 1932-7447