Catalytic oxidation of methane on polycrystalline palladium supported on stabilized zirconia
The oxidation of methane on porous polycrystalline palladium supported on yttria-stabilized zirconia was studied at atmospheric total pressure in a continuous-stirred tank reactor (CSTR) at temperatures between 450 and 600/sup 0/C. The technique of solid-electrolyte potentiometry (SEP) was used to measure in situ the thermodynamic activity of oxygen adsorbed on the catalyst surface. The reaction kinetics are consistent with an Eley-Rideal model according to which adsorbed atomic oxygen reacts with gaseous methane. The potentiometric measurements suggest that only one oxygen atom is involved in the rate-limiting step. A kinetic model that satisfies both kinetic and SEP results is discussed.
- Research Organization:
- Tufts Univ., Medford, MA (USA)
- OSTI ID:
- 5229052
- Journal Information:
- J. Catal.; (United States), Journal Name: J. Catal.; (United States) Vol. 98:2; ISSN JCTLA
- Country of Publication:
- United States
- Language:
- English
Similar Records
Solid-electrolyte-aided study of methane oxidation on polycrystalline silver
Solid electrolyte-aided study of propylene oxidation on polycrystalline silver
Related Subjects
030300 -- Natural Gas-- Drilling
Production
& Processing
090221* -- Alcohol Fuels-- Chemical Synthesis-- (1976-1989)
10 SYNTHETIC FUELS
ADSORPTION
ALCOHOLS
ALDEHYDES
ALKANES
CATALYST SUPPORTS
CATALYTIC EFFECTS
CHALCOGENIDES
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
ELEMENTS
FORMALDEHYDE
HYDROCARBONS
HYDROXY COMPOUNDS
KINETICS
MATHEMATICAL MODELS
METALS
METHANE
METHANOL
NONMETALS
ORGANIC COMPOUNDS
OXIDATION
OXIDES
OXYGEN
OXYGEN COMPOUNDS
PALLADIUM
PLATINUM METALS
POTENTIOMETRY
REACTION KINETICS
SORPTION
SYNTHESIS
TITRATION
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
ZIRCONIUM COMPOUNDS
ZIRCONIUM OXIDES