Methanol adsorption and decomposition on clean and oxygen precovered palladium (111)
Journal Article
·
· J. Catal.; (United States)
The interaction of methanol with palladium (111) (Pd(111)) has been studied using high-resolution electron energy loss spectroscopy (HREELS). A chemisorbed and a physisorbed phase are found on the surface at 140 K. Desorption of the physisorbed phase occurs by 160 K and approximately 90% of the chemisorbed layer desorbs by 300 K. Exposure to methanol at 300 K causes dissociation to chemisorbed CO. Decomposition of chemisorbed methanol to a methoxy species occurs near 200 K in the presence of a preadsorbed p(2 x 2) oxygen layer whereas no methoxy is detected on the clean surface. Further dehydrogenation to CO is observed by 300 K on the oxygen precovered surface. 4 figures, 3 tables.
- Research Organization:
- Indiana Univ., Bloomington
- OSTI ID:
- 5513886
- Journal Information:
- J. Catal.; (United States), Journal Name: J. Catal.; (United States) Vol. 83:2; ISSN JCTLA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
090210* -- Alcohol Fuels-- Properties-- (1976-1989)
10 SYNTHETIC FUELS
ADSORPTION
ALCOHOLS
ALKOXY RADICALS
CARBON COMPOUNDS
CARBON MONOXIDE
CARBON OXIDES
CATALYSTS
CATALYTIC EFFECTS
CHALCOGENIDES
CHEMICAL REACTION YIELD
CHEMICAL REACTIONS
CHEMISORPTION
COMPARATIVE EVALUATIONS
DATA
DEHYDROGENATION
DESORPTION
ELECTRON SPECTROSCOPY
ELEMENTS
ENERGY LEVELS
ENERGY-LOSS SPECTROSCOPY
EXCITED STATES
EXPERIMENTAL DATA
HYDROXY COMPOUNDS
INFORMATION
LOW TEMPERATURE
MEDIUM TEMPERATURE
METALS
METHANOL
METHOXY RADICALS
NONMETALS
NUMERICAL DATA
ORGANIC COMPOUNDS
OXIDES
OXYGEN
OXYGEN COMPOUNDS
PALLADIUM
PLATINUM METALS
RADICALS
SEPARATION PROCESSES
SORPTION
SORPTIVE PROPERTIES
SPECTROSCOPY
SURFACE PROPERTIES
TEMPERATURE DEPENDENCE
TRANSITION ELEMENTS
VIBRATIONAL STATES
YIELDS
10 SYNTHETIC FUELS
ADSORPTION
ALCOHOLS
ALKOXY RADICALS
CARBON COMPOUNDS
CARBON MONOXIDE
CARBON OXIDES
CATALYSTS
CATALYTIC EFFECTS
CHALCOGENIDES
CHEMICAL REACTION YIELD
CHEMICAL REACTIONS
CHEMISORPTION
COMPARATIVE EVALUATIONS
DATA
DEHYDROGENATION
DESORPTION
ELECTRON SPECTROSCOPY
ELEMENTS
ENERGY LEVELS
ENERGY-LOSS SPECTROSCOPY
EXCITED STATES
EXPERIMENTAL DATA
HYDROXY COMPOUNDS
INFORMATION
LOW TEMPERATURE
MEDIUM TEMPERATURE
METALS
METHANOL
METHOXY RADICALS
NONMETALS
NUMERICAL DATA
ORGANIC COMPOUNDS
OXIDES
OXYGEN
OXYGEN COMPOUNDS
PALLADIUM
PLATINUM METALS
RADICALS
SEPARATION PROCESSES
SORPTION
SORPTIVE PROPERTIES
SPECTROSCOPY
SURFACE PROPERTIES
TEMPERATURE DEPENDENCE
TRANSITION ELEMENTS
VIBRATIONAL STATES
YIELDS