Methanol adsorption and decomposition on clean and oxygen precovered palladium (111)

Journal Article · Sat Oct 01 00:00:00 EDT 1983 · J. Catal.; (United States)

DOI:https://doi.org/10.1016/0021-9517(83)90068-4· OSTI ID:5513886

Gates, J A; Kesmodel, L L

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), Vol. 83:2
• Country of Publication: United States
• Language: English

Related Subjects

10 SYNTHETIC FUELS
CARBON MONOXIDE
CHEMICAL REACTION YIELD
ENERGY-LOSS SPECTROSCOPY
METHANOL
ADSORPTION
CHEMISORPTION
DEHYDROGENATION
DESORPTION
OXYGEN
PALLADIUM
CATALYTIC EFFECTS
SORPTIVE PROPERTIES
CATALYSTS
COMPARATIVE EVALUATIONS
EXPERIMENTAL DATA
LOW TEMPERATURE
MEDIUM TEMPERATURE
METHOXY RADICALS
TEMPERATURE DEPENDENCE
VIBRATIONAL STATES
ALCOHOLS
ALKOXY RADICALS
CARBON COMPOUNDS
CARBON OXIDES
CHALCOGENIDES
CHEMICAL REACTIONS
DATA
ELECTRON SPECTROSCOPY
ELEMENTS
ENERGY LEVELS
EXCITED STATES
HYDROXY COMPOUNDS
INFORMATION
METALS
NONMETALS
NUMERICAL DATA
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PLATINUM METALS
RADICALS
SEPARATION PROCESSES
SORPTION
SPECTROSCOPY
SURFACE PROPERTIES
TRANSITION ELEMENTS
YIELDS
090210* - Alcohol Fuels- Properties- (1976-1989)