Solid electrolyte aided study of the ethylene oxide oxidation on silver

Journal Article · Tue Jul 01 04:00:00 EDT 1980 · J. Catal.; (United States)

DOI:https://doi.org/10.1016/0021-9517(80)90475-3· OSTI ID:6320056

Stoukides, M; Vayenas, C G

Ethylene oxide oxidation kinetics on polycrystalline silver film were studied with simultaneous solid electrolyte potentiometry, which permits the in-situ measurement of the thermodynamic activity of adsorbed oxygen, in order to elucidate the secondary oxidation of ethylene oxide to undesirable carbon dioxide. The results suggested that atomic oxygen, adsorbed on a surface site that differs from the ethylene oxide adsorption site, is responsible for the ethylene oxide oxidation; that ethylene oxide adsorbs as a dimer; and that the migration of atomic oxygen from its adsorption site to the adsorbed ethylene oxide is the rate-limiting step. The experimental technique is discussed.

• Research Organization: Massachusetts Inst. Technol.
• OSTI ID: 6320056
• Journal Information: J. Catal.; (United States), Journal Name: J. Catal.; (United States) Vol. 64:1; ISSN JCTLA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201 -- Chemical & Physicochemical Properties
400301* -- Organic Chemistry-- Chemical & Physicochemical Properties-- (-1987)
ADSORPTION
ALKENES
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON OXIDES
CHALCOGENIDES
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
ELECTROLYTES
ELEMENTS
EPOXIDES
ETHYLENE
FILMS
HYDROCARBONS
KINETICS
METALS
NONMETALS
ORGANIC COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
OXIDATION
OXIDES
OXYGEN
OXYGEN COMPOUNDS
POTENTIOMETRY
REACTION KINETICS
SILVER
SOLID ELECTROLYTES
SORPTION
SURFACE PROPERTIES
THERMODYNAMIC ACTIVITY
TITRATION
TRANSITION ELEMENTS