Effects of potassium on carbon monoxide methanation over supported rhodium films. Technical report
The reaction of hydrogen with carbon monoxide over Rh/Al/sub 2/O/sub 3/ and Rh/TiO/sub 2/ catalytic films, some of which contained potassium as an additive, has been investigated. The presence of potassium caused the usual gem dicarbonyl and linear CO species on supported rhodium to dissociate at lower temperature than for catalysts containing no potassium. On the other hand, the bridged carbonyl species was significantly enhanced by the presence of potassium. The Rh/TiO/sub 2/ films to which potassium was added catalyzed the production of significant amounts of acetone and acetaldehyde as oxygenated products. It is likely that the bridged carbonyl species is the precursor to oxygenated products.
- Research Organization:
- Auckland Univ. (New Zealand). Dept. of Chemistry
- OSTI ID:
- 7255386
- Report Number(s):
- AD-A-171535/8/XAB; AU-TR-8
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
10 SYNTHETIC FUELS
ACETALDEHYDE
ALDEHYDES
ALKALI METALS
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON MONOXIDE
CARBON OXIDES
CATALYSIS
CATALYSTS
CATALYTIC EFFECTS
CHALCOGENIDES
CHEMICAL REACTIONS
DISSOCIATION
ELEMENTS
FILMS
HYDRIDES
HYDROGEN COMPOUNDS
HYDROGENATION
METALS
METHANATION
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PLATINUM METALS
POTASSIUM
RHODIUM
TITANIUM COMPOUNDS
TITANIUM OXIDES
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS