NMR and NEXAFS Study of Various Graphite Fluorides

Ahmad, Y. (author)

Dubois, M. (author)

Guerin, K. (author)

Hamwi, A. (author)

Fawal, Z. (author)

Preobrajenski, Alexei (author): Lund University,Lunds universitet,MAX IV-laboratoriet,MAX IV Laboratory

Generalov, A. V. (author)

Klyushin, A. Yu. (author)

Simonov, K. A. (author): V.A. Fock Institute of Physics, St. Petersburg State University, St. Petersburg 198504, Russia

Vinogradov, Nikolay A. (author): Uppsala universitet,Molekyl- och kondenserade materiens fysik,V.A. Fock Institute of Physics, St. Petersburg State University, St. Petersburg 198504, Russia

Zhdanov, I. A. (author): V.A. Fock Institute of Physics, St. Petersburg State University, St. Petersburg 198504, Russia

Preobrajenski, Alexei (author): Lund University,Lunds universitet,MAX IV-laboratoriet,MAX IV Laboratory,MAX-lab, Lund University, Box 118, 22100 Lund, Sweden

Vinogradov, A. S. (author): V.A. Fock Institute of Physics, St. Petersburg State University, St. Petersburg 198504, Russia

(creator_code:org_t)

2013-06-21
2013
English.
In: Journal of Physical Chemistry C. - : American Chemical Society (ACS). - 1932-7447 .- 1932-7455. ; 117:26, s. 13564-13572

Related links:: http://dx.doi.org/10...; show more...; https://lup.lub.lu.s...; https://doi.org/10.1...; https://urn.kb.se/re...; show less...

Abstract Subject headings

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.

By the author/editor: Ahmad, Y.; Dubois, M.; Guerin, K.; Hamwi, A.; Fawal, Z.; Preobrajenski, A ...; show more...; Generalov, A. V.; Klyushin, A. Yu.; Simonov, K. A.; Vinogradov, Niko ...; Zhdanov, I. A.; Vinogradov, A. S ...; show less...

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