Vibrational spectroscopy of amorphous carbon modified with Pt

IR absorption spectra of films of amorphous carbon ( a -C) and a platinum-modified nanocomposite based on amorphous carbon ( a -C:Pt) have been studied in the range of stretching vibrations of the carbon skeleton (1200–1700 cm −1 ) and bending vibrations of C-H bonds (2700–3100 cm −1 ). It is shown...

Full description

Saved in:
Bibliographic Details
Published inSemiconductors (Woodbury, N.Y.) Vol. 42; no. 9; pp. 1113 - 1116
Main Authors Ivanov-Omskiĭ, V. I., Zvonareva, T. K., Frolova, G. S.
Format Journal Article
LanguageEnglish
Published Dordrecht SP MAIK Nauka/Interperiodica 2008
Springer Nature B.V
Subjects
Absorption spectra
Amorphous
Benzene
Carbon
Clusters
Crosslinking
Graphene
Hydrocarbons
Iridium
Magnetic Materials
Magnetism
Microcrystalline Semiconductors; Semiconductor Composites
Nanocomposites
Organic
Physics
Physics and Astronomy
Platinum
Porous
Spectrum analysis
Vitreous
78.30.Ly
61.43.Dq
Online AccessGet full text

Cover

More Information
Summary:IR absorption spectra of films of amorphous carbon ( a -C) and a platinum-modified nanocomposite based on amorphous carbon ( a -C:Pt) have been studied in the range of stretching vibrations of the carbon skeleton (1200–1700 cm −1 ) and bending vibrations of C-H bonds (2700–3100 cm −1 ). It is shown that modification of amorphous carbon with platinum gives rise to an absorption band at 1500 cm −1 , which is attributed to platinum-induced destruction of graphene rings of graphite-like fragments into isolated benzene rings. It is concluded that hydrogen “cross-links” benzene rings into graphene clusters, whereas platinum “de-cross-links” graphene clusters.
ISSN:1063-7826
1090-6479
DOI:10.1134/S1063782608090194