Adsorbate bonding and the selection of partial and total oxidation pathways
- Clarkson Univ., Potsdam, NY (USA)
The oxidation reaction of ethane has been studied on a series of well-characterized samples of vanadium oxide supported on silica. At low concentrations the vanadium species are isolated vanadyl groups, while at high concentrations they form small V{sub 2}O{sub 5} crystallites. Oxygen chemisorption is used to measure the number of surface vanadium atoms on both types of species. At low conversions the oxidation of ethane is selective, producing mostly ethylene and acetaldehyde via structure-insensitive reactions. Intermediates for these are probably bonded to vanadium through an oxygen atom. In contrast the CO{sub x} reaction is structure-sensitive, and probably involves intermediates bonded directly to vanadium.
- OSTI ID:
- 5598576
- Journal Information:
- Journal of Catalysis; (USA), Journal Name: Journal of Catalysis; (USA) Vol. 128:1; ISSN 0021-9517; ISSN JCTLA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
020400* -- Petroleum-- Processing
ACETALDEHYDE
ALDEHYDES
ALKANES
ALKENES
CATALYSIS
CATALYTIC EFFECTS
CHALCOGENIDES
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
CHEMISORPTION
ELEMENTS
ETHANE
ETHYLENE
HYDROCARBONS
KINETICS
NONMETALS
ORGANIC COMPOUNDS
OXIDATION
OXIDES
OXYGEN
OXYGEN COMPOUNDS
REACTION INTERMEDIATES
REACTION KINETICS
SEPARATION PROCESSES
SORPTION
SURFACE PROPERTIES
SYNTHESIS
TRANSITION ELEMENT COMPOUNDS
VANADIUM COMPOUNDS
VANADIUM OXIDES