Adsorbed Species and Reaction Rates for NO–CO over Rh(111)

We have studied the reaction of NO with CO over a Rh(111) catalyst by monitoring the infrared (IR) intensity of surface CO and NO at various partial pressures of NO (PNO), CO (PCO), and sample temperatures (T). Reaction rates for the products (CO2, N2O, and N2) were previously measured at the same c...

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Veröffentlicht in:	Journal of Catalysis 1996-11, Vol.164 (1), p.194-206
Hauptverfasser:	Permana, H., Simon Ng, K.Y., Peden, Charles H.F., Schmieg, Steven J., Lambert, David K., Belton, David N.
Format:	Artikel
Sprache:	eng
Schlagworte:	20 FOSSIL-FUELED POWER PLANTS 40 CHEMISTRY ABSORPTION SPECTROSCOPY ADSORPTION ADVANCED PROPULSION SYSTEMS CARBON MONOXIDE Catalysis CATALYSTS CATALYTIC EFFECTS Catalytic reactions CHEMICAL REACTION KINETICS CHEMICAL REACTIONS Chemistry Exact sciences and technology General and physical chemistry HETEROGENEOUS CATALYSIS NITRIC OXIDE RHODIUM SORPTIVE PROPERTIES Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry VIBRATIONAL STATES
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Zusammenfassung:	We have studied the reaction of NO with CO over a Rh(111) catalyst by monitoring the infrared (IR) intensity of surface CO and NO at various partial pressures of NO (PNO), CO (PCO), and sample temperatures (T). Reaction rates for the products (CO2, N2O, and N2) were previously measured at the same conditions in our apparatus [J. Phys. Chem.99, 16344 (1995)]. Surface coverages were observed both atPNO=8 Torr, where the reaction yields mostly N2O and the selectivity is insensitive to eitherPCO(1 to 40 Torr) orT(
ISSN:	0021-9517 1090-2694
DOI:	10.1006/jcat.1996.0375