Infrared study of lateral interactions between carbon monoxide molecules adsorbed on oxide catalysts

A. A. Tsyganenko, L. A. Denisenko, S. M. Zverev, V. N. Filimonov

Research outputpeer-review

92 Citations (Scopus)

Abstract

An infrared study of 12C16O and 13C16O adsorbed at 77 K on ZnO, TiO2, BeO, Al2O3, and SiO2 has provided details on two kinds of interactions between the adsorbed molecules which account for the dependence of the spectra on surface coverage. The observed vco values, which for coordinatively bonded molecules are 50-100 cm-1 higher compared with gaseous CO, are lowered significantly (up to 30 cm-1) on increasing coverage as a result of a "chemical" effect, namely the weakening of the electron-donating ability of metal ion after occupation of the adjacent sites with adsorbed molecules. The fine structure of the CO ZnO spectrum reflects the stepwise character of this process. The second type of interaction is dipole coupling. This causes a comparatively weak upward shift (up to 6 cm-1), partly counteracting the "chemical" effect.

Original languageEnglish
Pages (from-to)10-15
Number of pages6
JournalJournal of Catalysis
Volume94
Issue number1
DOIs
Publication statusPublished - 1 Jan 1985

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Carbon Monoxide
Carbon monoxide
carbon monoxide
Oxides
chemical effects
Infrared radiation
catalysts
Catalysts
Molecules
oxides
molecules
interactions
occupation
Metal ions
metal ions
fine structure
dipoles
Electrons
causes
shift

Scopus subject areas

  • Catalysis
  • Process Chemistry and Technology

Cite this

Tsyganenko, A. A. ; Denisenko, L. A. ; Zverev, S. M. ; Filimonov, V. N. / Infrared study of lateral interactions between carbon monoxide molecules adsorbed on oxide catalysts. In: Journal of Catalysis. 1985 ; Vol. 94, No. 1. pp. 10-15.
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Infrared study of lateral interactions between carbon monoxide molecules adsorbed on oxide catalysts. / Tsyganenko, A. A.; Denisenko, L. A.; Zverev, S. M.; Filimonov, V. N.

In: Journal of Catalysis, Vol. 94, No. 1, 01.01.1985, p. 10-15.

Research outputpeer-review

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