Infrared spectroscopy at high pressure: Interaction of CO with oxidized Rh/Al sub 2 O sub 3

Journal Article · Sat Feb 29 23:00:00 EST 1992 · Journal of Catalysis; (United States)

DOI:https://doi.org/10.1016/0021-9517(92)90238-D· OSTI ID:7079986

Wey, J P; Neely, W C; Worley, S D ^[1]

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1. Auburn Univ., AL (United States)

Infrared spectroscopy was used to study the interaction of CO with preoxidized Rh/Al{sub 2}O{sub 3} catalyst films in a high-pressure cell reactor. An infrared band near 2,125 cm{sup {minus}1}, which had previously been assigned to a Rh{sup 2+}CO species and to one band component of an asymmetric Rh(CO){sub 3} species by two different laboratories, is now assigned to Rh{sup 2+}CO. This work demonstrates that gas-phase contributions from infrared-active species with high extinction coefficients can be eliminated from surface contributions, even at high pressures of the gas.

• OSTI ID: 7079986
• Journal Information: Journal of Catalysis; (United States), Journal Name: Journal of Catalysis; (United States) Vol. 134:1; ISSN 0021-9517; ISSN JCTLA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
ABSORPTION SPECTROSCOPY
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
CARBON COMPOUNDS
CARBON MONOXIDE
CARBON OXIDES
CARBONYLS
CATALYST SUPPORTS
CATALYSTS
CHALCOGENIDES
CHEMICAL REACTIONS
ELECTROMAGNETIC RADIATION
ELEMENTS
INFRARED RADIATION
INFRARED SPECTRA
METALS
OXIDATION
OXIDES
OXYGEN COMPOUNDS
PHASE STUDIES
PLATINUM METALS
RADIATIONS
REFRACTORY METAL COMPOUNDS
RHODIUM
RHODIUM COMPOUNDS
SPECTRA
SPECTROSCOPY
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS