Catalytic oxidation of hydrogen on lamellar compounds of graphite with transition metals. II. Relation between catalytic activity and catalyst composition and properties
Journal Article
·
· Kinet. Catal. (Engl. Transl.); (United States)
OSTI ID:5318792
- Academy of Sciences of the Ukrainian SSR, Kiev, USSR
When hydrogen is oxidized in a gas mixture containing excess oxygen, the catalytic activity of lamellar graphite compounds (LGC) with transition metals decreases in the order: LGC-Pt>LGC-Pd>LGC-Ru>LGC-Ni>LGC-Co>LGC-Fe and the metal-oxygen bond energies change in reverse order. This is explained by the fact that the reaction rate is determined by the reaction rate between H/sub 2/ and adsorbed oxygen. During catalysis on lamellar graphic compounds with platinum metals the activation entropy is substantially higher than for lamellar graphite compounds with metals of the iron subgroup. During catalysis with an excess of H/sub 2/ the activity decreases in the order: LGC-Pt>LGC-Ru>LGC-Pd>LGC-Ni>LGC-Co>LGC-Fe.
- OSTI ID:
- 5318792
- Journal Information:
- Kinet. Catal. (Engl. Transl.); (United States), Journal Name: Kinet. Catal. (Engl. Transl.); (United States) Vol. 22:2; 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
CARBON
CATALYTIC EFFECTS
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
CLATHRATES
DATA
ELEMENTAL MINERALS
ELEMENTS
EQUATIONS
EXPERIMENTAL DATA
GRAPHITE
HIGH TEMPERATURE
HYDROGEN
INFORMATION
KINETICS
MEDIUM TEMPERATURE
METALS
MINERALS
NONMETALS
NUMERICAL DATA
OXIDATION
PRESSURE COEFFICIENT
REACTION KINETICS
REACTIVITY COEFFICIENTS
THERMODYNAMICS
TRANSITION ELEMENTS
400201* -- Chemical & Physicochemical Properties
CARBON
CATALYTIC EFFECTS
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
CLATHRATES
DATA
ELEMENTAL MINERALS
ELEMENTS
EQUATIONS
EXPERIMENTAL DATA
GRAPHITE
HIGH TEMPERATURE
HYDROGEN
INFORMATION
KINETICS
MEDIUM TEMPERATURE
METALS
MINERALS
NONMETALS
NUMERICAL DATA
OXIDATION
PRESSURE COEFFICIENT
REACTION KINETICS
REACTIVITY COEFFICIENTS
THERMODYNAMICS
TRANSITION ELEMENTS