Emission FT-IR spectroscopic study of adsorbed carbon monoxide on metal powders and supported catalysts

J. Bódis, Cs Németh, J. Mink, G. Keresztury, P. Tétényi

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

Fourier transform infrared emission spectroscopy, FT-IRES, was used for the detection of adsorbed CO species at p = 40 mbar and T = 333-393 K on metal powders (Pt, Pd, Rh) and supported catalysts (Rh/activated carbon, 5% Rh). Linearly bonded CO features were detected at 2020 and 2030 cm-1 for Pd and Pt respectively. Bridged carbonyl species were also detected for Pd and Pt at 1930 and 1921 cm-1 respectively. The bands observed for Rh powder at 2040 and 1970 cm-1 have been assigned to symmetric and asymmetric stretchings of the geminal dicarbonyl, and the band at 1860 cm-1 is ascribed to the bridged carbonyl species. Similar bands, but about ten times weaker, have been observed for carbon supported Rh, and an extreme feature appeared at about 1800 cm-1 that might indicate the existence of three-fold bridged species.

Original languageEnglish
Pages (from-to)179-182
Number of pages4
JournalJournal of Molecular Structure
Volume410-411
DOIs
Publication statusPublished - 1997

Fingerprint

metal powder
Powder metals
Carbon Monoxide
Catalyst supports
Powders
carbon monoxide
Carbon
Metals
catalysts
Emission spectroscopy
Fourier Transform Infrared Spectroscopy
Activated carbon
Stretching
Infrared spectroscopy
Fourier transforms
activated carbon
carbon
spectroscopy

Keywords

  • Adsorbed CO species
  • Catalysts
  • FT-IRES spectroscopy

ASJC Scopus subject areas

  • Structural Biology
  • Organic Chemistry
  • Physical and Theoretical Chemistry
  • Spectroscopy
  • Atomic and Molecular Physics, and Optics

Cite this

Emission FT-IR spectroscopic study of adsorbed carbon monoxide on metal powders and supported catalysts. / Bódis, J.; Németh, Cs; Mink, J.; Keresztury, G.; Tétényi, P.

In: Journal of Molecular Structure, Vol. 410-411, 1997, p. 179-182.

Research output: Contribution to journalArticle

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AU - Tétényi, P.

PY - 1997

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