Studies of the strong metal-support interaction (SMSI) in Rh/TiO/sub 2/ model catalysts

Conference · Tue Jan 01 04:00:00 EST 1985

OSTI ID:5682706

Henrich, V E; Sadeghi, H R

Electron spectroscopic techniques were used to study model catalysts of Rh deposited onto rutile TiO/sub 2/(110) single-crystal substrates. Fresh catalysts exhibited normal CO chemisorption, as did catalysts after 200/sup 0/C reduction. Reduction at 400/sup 0/C for 30 min in H/sub 2/ or uhv completely suppressed it. The transition to the SMSI (strong metal-support interaction) was accompanied by a loss of surface Rh. Attempts to reverse SMSI by oxidation and then low-temperature reduction did not succeed. Further studies are being conducted. (DLC)

• Research Organization: Yale Univ., New Haven, CT (USA). Dept. of Applied Physics
• DOE Contract Number: AC02-81ER10830
• OSTI ID: 5682706
• Report Number(s): CONF-850417-34; ON: DE88005022
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360104* -- Metals & Alloys-- Physical Properties
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201 -- Chemical & Physicochemical Properties
CARBON COMPOUNDS
CARBON MONOXIDE
CARBON OXIDES
CATALYST SUPPORTS
CATALYSTS
CATALYTIC EFFECTS
CHALCOGENIDES
CHEMICAL REACTIONS
CHEMISORPTION
CRYSTALS
ELEMENTS
METALS
MONOCRYSTALS
OXIDES
OXYGEN COMPOUNDS
PLATINUM METALS
REDUCTION
RHODIUM
SEPARATION PROCESSES
SORPTION
TITANIUM COMPOUNDS
TITANIUM OXIDES
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS