SURFACE-STRUCTURE AND CATALYTIC ACTIVITY OF MGF2 SUPPORTED TUNGSTEN-OXIDE

Authors
HABER J WOJCIECHOWSKA M STOCH J GUT W
Citation
J. Haber et al., SURFACE-STRUCTURE AND CATALYTIC ACTIVITY OF MGF2 SUPPORTED TUNGSTEN-OXIDE, Bulletin of the Polish Academy of Sciences. Chemistry, 42(3), 1994, pp. 361-376
Citations number
23
Categorie Soggetti
Chemistry
Journal title
Bulletin of the Polish Academy of Sciences. Chemistry → ACNP
ISSN journal
02397285
Volume
42
Issue
3
Year of publication
1994
Pages
361 - 376
Database
ISI
SICI code
0239-7285(1994)42:3<361:SACAOM>2.0.ZU;2-W
Abstract
Tungsten oxides supported on MgF2 prepared by impregnation and precipi tation-deposition methods were studied. The X-ray photoelectron spectr a (XPS) studies revealed that the oxy-anions of tungstic acid in the f orm of hydroxylated species and the WO(x) tetrahedra or octahedra were formed on the surface of WO3/MgF2 samples. Formation of these complex es resulted in the appearance of a significant Lewis and Bronsted acid ity, which were responsible for the activity in reactions of isomeriza tion of cyclohexene, 2-propanol decomposition and cumene cracking.