Effect of structure in selective oxide catalysis: Oxidation reactions of ethanol and ethane on vanadium oxide

Journal Article · Thu Jun 14 00:00:00 EDT 1990 · Journal of Physical Chemistry; (USA)

DOI:https://doi.org/10.1021/j100375a048· OSTI ID:6330984

Oyama, S T ^[1]; Somorjai, G A ^[2]

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1. Clarkson Univ., Potsdam, NY (USA)
2. Univ. of California, Berkeley (USA)

The catalytic activity of well-characterized samples of vanadium oxide supported on silica were studied for the partial oxidation of ethanol and ethane. Surface vanadium atoms were counted by a new oxygen chemisorption technique which allowed measurements of sample dispersions and turnover rates. Ethanol oxidation was found to be a structure-insensitive reaction that produced mostly acetaldehyde. Ethane oxidation was different; while its overall turnover rate changed little with vanadium oxide dispersion, its selectivity did vary with catalyst structure. The products of this reaction were mostly ethylene and acetaldehyde, but at low temperatures on the highest dispersion catalysts there was excess carbon dioxide formation.

• DOE Contract Number: AC03-76SF00098
• OSTI ID: 6330984
• Journal Information: Journal of Physical Chemistry; (USA), Journal Name: Journal of Physical Chemistry; (USA) Vol. 94:12; ISSN 0022-3654; ISSN JPCHA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
ALCOHOLS
ALKANES
CATALYSIS
CHALCOGENIDES
CHEMICAL REACTIONS
DATA
DATA ANALYSIS
ETHANE
ETHANOL
EXPERIMENTAL DATA
HYDROCARBONS
HYDROXY COMPOUNDS
INFORMATION
MEASURING INSTRUMENTS
MEASURING METHODS
NUMERICAL DATA
ORGANIC COMPOUNDS
OXIDATION
OXIDES
OXYGEN COMPOUNDS
STRUCTURE-ACTIVITY RELATIONSHIPS
TRANSITION ELEMENT COMPOUNDS
VANADIUM COMPOUNDS
VANADIUM OXIDES