Infrared spectroscopic study of the adsorption of carbon monoxide on silica-supported copper oxide

Journal Article · Wed Oct 01 04:00:00 EDT 1980 · J. Catal.; (United States)

OSTI ID:6309836

Jong, K P.D.; Geus, J W; Joziasse, J

Silica-supported catalysts containing 16.7 and 30% copper were prepared by deposition-precipitation and a catalyst containing 10% copper was prepared by a conventional impregnation technique. The catalysts were calcined at 400/sup 0/C for 15 hr in oxygen. An interpretation of the IR spectra of carbon monoxide adsorbed on the calcined, reduced, and reoxidized catalysts suggested that in the catalyst preparation by deposition-precipitation a substantial amount of the copper is incorporated into the silica surface as accessible isolated copper(II) ions and in the bulk as inaccessible isolated copper ions and that these copper ions are mobilized and coalesce on the surface as copper particles during reduction, and are reoxidized to copper(II) oxide during reoxidation. The catalyst prepared by impregnation incorporated a small amount of isolated copper ions into the surface but none into the bulk.

• Research Organization: Univ. of Utrecht
• OSTI ID: 6309836
• Journal Information: J. Catal.; (United States), Journal Name: J. Catal.; (United States) Vol. 65:2; ISSN JCTLA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
ADSORPTION
CALCINATION
CARBON COMPOUNDS
CARBON MONOXIDE
CARBON OXIDES
CATALYST SUPPORTS
CATALYSTS
CHALCOGENIDES
CHEMICAL PREPARATION
CHEMICAL REACTIONS
COALESCENCE
COPPER COMPOUNDS
COPPER OXIDES
DATA
DECOMPOSITION
EXPERIMENTAL DATA
INFORMATION
INFRARED SPECTRA
MINERALS
NUMERICAL DATA
OXIDE MINERALS
OXIDES
OXYGEN COMPOUNDS
PYROLYSIS
REDOX REACTIONS
SILICA
SILICON COMPOUNDS
SILICON OXIDES
SORPTION
SORPTIVE PROPERTIES
SPECTRA
SURFACE PROPERTIES
SYNTHESIS
THERMOCHEMICAL PROCESSES
TRANSITION ELEMENT COMPOUNDS