CO oxidation on palladium. 2. A combined kinetic-infrared reflection absorption spectroscopic study of Pd(111)
Journal Article
·
· Journal of Physical Chemistry; (United States)
- Texas A M Univ., College Station, TX (United States)
The oxidation of carbon monoxide was studied on a single-crystal Pd(111) catalyst using an elevated pressure IR cell/ultrahigh vacuum surface analysis system. The reaction kinetics were followed at elevated pressures by measuring the total pressure change during the course of reaction. In the temperature range of 500-570 K an apparent activation energy of 28.1 [+-] 0.3 kcal/mol was determined, which agrees well with the 25 [+-] 2 kcal/mol obtained for the heat of adsorption of CO on Pd(111). Below 500 K the apparent activation energy decreases to 21 kcal/mol in concert with the decrease in the CO heat of adsorption. 25 refs., 7 figs.
- OSTI ID:
- 7069956
- Journal Information:
- Journal of Physical Chemistry; (United States), Journal Name: Journal of Physical Chemistry; (United States) Vol. 98:11; ISSN JPCHAX; ISSN 0022-3654
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
360102 -- Metals & Alloys-- Structure & Phase Studies
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
54 ENVIRONMENTAL SCIENCES
540120 -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (1990-)
ABSORPTION
ABSORPTION SPECTRA
ACTIVATION ENERGY
ADSORPTION HEAT
AIR POLLUTION CONTROL
CARBON COMPOUNDS
CARBON MONOXIDE
CARBON OXIDES
CATALYSTS
CHALCOGENIDES
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
CONTROL
CRYSTALS
ELEMENTS
ENERGY
ENTHALPY
INFRARED SPECTRA
KINETICS
METALS
MONITORING
MONOCRYSTALS
NONMETALS
OXIDATION
OXIDES
OXYGEN
OXYGEN COMPOUNDS
PALLADIUM
PHYSICAL PROPERTIES
PLATINUM METALS
POLLUTION CONTROL
PRESSURE DEPENDENCE
REACTION KINETICS
SORPTION
SPECTRA
SURFACE PROPERTIES
TEMPERATURE RANGE
TEMPERATURE RANGE 0400-1000 K
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENTS
360102 -- Metals & Alloys-- Structure & Phase Studies
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
54 ENVIRONMENTAL SCIENCES
540120 -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (1990-)
ABSORPTION
ABSORPTION SPECTRA
ACTIVATION ENERGY
ADSORPTION HEAT
AIR POLLUTION CONTROL
CARBON COMPOUNDS
CARBON MONOXIDE
CARBON OXIDES
CATALYSTS
CHALCOGENIDES
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
CONTROL
CRYSTALS
ELEMENTS
ENERGY
ENTHALPY
INFRARED SPECTRA
KINETICS
METALS
MONITORING
MONOCRYSTALS
NONMETALS
OXIDATION
OXIDES
OXYGEN
OXYGEN COMPOUNDS
PALLADIUM
PHYSICAL PROPERTIES
PLATINUM METALS
POLLUTION CONTROL
PRESSURE DEPENDENCE
REACTION KINETICS
SORPTION
SPECTRA
SURFACE PROPERTIES
TEMPERATURE RANGE
TEMPERATURE RANGE 0400-1000 K
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENTS