STUDY OF SURFACE-STRUCTURE OF MGF2-SUPPORTED CHROMIUM-OXIDE

Authors
WOJCIECHOWSKA M LOMNICKI S GOSLAR J
Citation
M. Wojciechowska et al., STUDY OF SURFACE-STRUCTURE OF MGF2-SUPPORTED CHROMIUM-OXIDE, Zeitschrift für physikalische Chemie, 189, 1995, pp. 113-122
Citations number
20
Categorie Soggetti
Chemistry Physical","Physics, Atomic, Molecular & Chemical
Journal title
Zeitschrift für physikalische Chemie → ACNP
ISSN journal
09429352
Volume
189
Year of publication
1995
Part
1
Pages
113 - 122
Database
ISI
SICI code
0942-9352(1995)189:<113:SOSOMC>2.0.ZU;2-V
Abstract
The IR and EPR results of MgF2-supported chromium oxide catalysts reve aled the presence of ''chromate like'' tetrahedral surface species and CrO6 clusters of Cr2O3 structure. Changes of the state of the magnesi um fluoride hydroxylation after introduction of chromium oxide to the system were observed with IR spectroscopy. Determination of acidic pro perties by means of pyridine as probe molecule enabled the origin of t he acid centres to be explained.