Infrared study of rhodium clusters entrapped within zeolites

Journal Article · Mon Oct 15 04:00:00 EDT 1979 · J. Catal.; (United States)

DOI:https://doi.org/10.1016/S0021-9517(79)80004-4· OSTI ID:6199839

Gelin, P; Ben Taarit, Y; Naccache, C

Samples containing 0.5 and 1.5% by wt rhodium were prepared by sublimating Rh/sub 6/(CO)/sub 16/, onto Y zeolite, subjected to various outgassing, oxidizing, and reducing treatments, and studied by IR spectroscopy. The IR spectra were compared with spectra of zeolite-supported (Rh(CO)/sub 2/ Cl)/sub 2/, alumina-supported Rh/sub 6/(C0)/sub 16/, and CO adsorbed on metallic rhodium. At sufficiently low rhodium content, the zeolite-supported Rh/sub 6/(CO)/sub 16/ species could be decarbonylated reversibly by oxygen or evacuation without losing the cluster structure. At higher rhodium loadings, a rhodium(I) dicarbonyl species formed as well as the decarbonylated zero-valent rhodium.

• Research Organization: C.N.R.S., Inst. Rech. Catal., Villeurbanne
• OSTI ID: 6199839
• Journal Information: J. Catal.; (United States), Journal Name: J. Catal.; (United States) Vol. 59:3; ISSN JCTLA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
CATALYST SUPPORTS
CATALYSTS
CATALYTIC EFFECTS
CHALCOGENIDES
CHEMICAL PREPARATION
CHEMICAL REACTIONS
COMPARATIVE EVALUATIONS
ELEMENTS
INFRARED SPECTRA
INORGANIC ION EXCHANGERS
ION EXCHANGE MATERIALS
MATERIALS
METALS
MINERALS
OXIDES
OXYGEN COMPOUNDS
PLATINUM METALS
RHODIUM
SOLID CLUSTERS
SPECTRA
STRUCTURAL CHEMICAL ANALYSIS
SYNTHESIS
TRANSITION ELEMENTS
ZEOLITES