State of oxygen on metal surfaces and catalytic activity for the oxidation of carbon monoxide
Journal Article
·
· Kinet. Catal. (Engl. Transl.); (United States)
OSTI ID:6464020
The dependence of the heat of adsorption of oxygen on the heat of formation of oxides of the corresponding metals is reported. For metals with a heat of adsorption exceeding 220 kJ/mole it is shown that a reconstructive type of oxygen adsorption (formation of surface oxides) predominates. On the other hand, nonreconstructive oxygen adsorption is observed on the platinum metals and silver at room temperature. On ruthenium, nickel, and cobalt under certain conditions a nonreconstructively adsorbed form of oxygen exists which is active with respect to CO oxidation. The transition of this type of oxygen absorption into the surface oxide state causes a variability in the activity of these metals for the oxidation of carbon monoxide. 57 references, 3 figures, 1 table.
- Research Organization:
- Inst. of Catalysis, Novosibirsk, USSR
- OSTI ID:
- 6464020
- Journal Information:
- Kinet. Catal. (Engl. Transl.); (United States), Journal Name: Kinet. Catal. (Engl. Transl.); (United States) Vol. 24:5; ISSN KICAA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
ADSORPTION HEAT
AUGER ELECTRON SPECTROSCOPY
CARBON COMPOUNDS
CARBON MONOXIDE
CARBON OXIDES
CATALYSTS
CATALYTIC EFFECTS
CHALCOGENIDES
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
CHEMISORPTION
COBALT
COHERENT SCATTERING
COMPARATIVE EVALUATIONS
DATA
DATA ANALYSIS
DIFFRACTION
ELECTRON DIFFRACTION
ELECTRON SPECTROSCOPY
ELEMENTS
ENTHALPY
EXPERIMENTAL DATA
INFORMATION
KINETICS
METALS
NICKEL
NONMETALS
NUMERICAL DATA
OXIDATION
OXIDES
OXYGEN
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
PLATINUM
PLATINUM METALS
REACTION KINETICS
RUTHENIUM
SCATTERING
SEPARATION PROCESSES
SILVER
SORPTION
SPECTROSCOPY
STRUCTURAL CHEMICAL ANALYSIS
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENTS
400201* -- Chemical & Physicochemical Properties
ADSORPTION HEAT
AUGER ELECTRON SPECTROSCOPY
CARBON COMPOUNDS
CARBON MONOXIDE
CARBON OXIDES
CATALYSTS
CATALYTIC EFFECTS
CHALCOGENIDES
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
CHEMISORPTION
COBALT
COHERENT SCATTERING
COMPARATIVE EVALUATIONS
DATA
DATA ANALYSIS
DIFFRACTION
ELECTRON DIFFRACTION
ELECTRON SPECTROSCOPY
ELEMENTS
ENTHALPY
EXPERIMENTAL DATA
INFORMATION
KINETICS
METALS
NICKEL
NONMETALS
NUMERICAL DATA
OXIDATION
OXIDES
OXYGEN
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
PLATINUM
PLATINUM METALS
REACTION KINETICS
RUTHENIUM
SCATTERING
SEPARATION PROCESSES
SILVER
SORPTION
SPECTROSCOPY
STRUCTURAL CHEMICAL ANALYSIS
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENTS