Exchange of molecular oxygen with the oxygen of some metal molybdates used as catalysts for selective oxidation
Journal Article
·
· J. Catal.; (United States)
A kinetic study was performed on the exchange of oxygen-18 with the oxygen of the normal molybdates of copper, cobalt, manganese, nickel, chromium, iron, and zinc. The reactivities of the oxygen of all molybdates were very similar to each other and to the reactivity of oxygen of molybdenum trioxide, i.e., all specific exchange rates were within one order of magnitude, whereas oxygen exchange rates of the simple metal oxides varied by 5 orders of magnitude. The activation energies of the exchange on all molybdates, except copper molybdate, were 48-55 kcal/mole, compared with 16-40 kcal/mole for the exchange reaction on the simple metal oxides. Implications for catalyst tailoring are briefly indicated.
- Research Organization:
- Lakehead Univ./Inst. General Inorganic Chemistry, Bulg. Acad. Sci.
- OSTI ID:
- 6462714
- Journal Information:
- J. Catal.; (United States), Journal Name: J. Catal.; (United States) Vol. 59:3; ISSN JCTLA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400203* -- Isotope Exchange & Isotope Separation-- (-1987)
ACTIVATION ENERGY
CATALYSTS
CHEMICAL REACTION KINETICS
CHROMIUM COMPOUNDS
COBALT COMPOUNDS
COMPARATIVE EVALUATIONS
COPPER COMPOUNDS
DATA
DESIGN
ELEMENTS
ENERGY
EVEN-EVEN NUCLEI
EXPERIMENTAL DATA
INFORMATION
IRON COMPOUNDS
ISOTOPES
ISOTOPIC EXCHANGE
KINETICS
LIGHT NUCLEI
MANGANESE COMPOUNDS
MOLYBDATES
MOLYBDENUM COMPOUNDS
NICKEL COMPOUNDS
NONMETALS
NUCLEI
NUMERICAL DATA
OXYGEN
OXYGEN 18
OXYGEN COMPOUNDS
OXYGEN ISOTOPES
REACTION KINETICS
REFRACTORY METAL COMPOUNDS
STABLE ISOTOPES
TRANSITION ELEMENT COMPOUNDS
ZINC COMPOUNDS
400203* -- Isotope Exchange & Isotope Separation-- (-1987)
ACTIVATION ENERGY
CATALYSTS
CHEMICAL REACTION KINETICS
CHROMIUM COMPOUNDS
COBALT COMPOUNDS
COMPARATIVE EVALUATIONS
COPPER COMPOUNDS
DATA
DESIGN
ELEMENTS
ENERGY
EVEN-EVEN NUCLEI
EXPERIMENTAL DATA
INFORMATION
IRON COMPOUNDS
ISOTOPES
ISOTOPIC EXCHANGE
KINETICS
LIGHT NUCLEI
MANGANESE COMPOUNDS
MOLYBDATES
MOLYBDENUM COMPOUNDS
NICKEL COMPOUNDS
NONMETALS
NUCLEI
NUMERICAL DATA
OXYGEN
OXYGEN 18
OXYGEN COMPOUNDS
OXYGEN ISOTOPES
REACTION KINETICS
REFRACTORY METAL COMPOUNDS
STABLE ISOTOPES
TRANSITION ELEMENT COMPOUNDS
ZINC COMPOUNDS