EFFECT OF SULFUR-OXIDES ON SURFACE-STATE AND CARBON-MONOXIDE OXIDATION ACTIVITY OF CUXZN1-XCR2O4 MIXED OXIDES

Authors
TERLECKIBARICEVIC A JOVANOVIC D GRBIC B MARINOVA T KIRILOVSTEFANOV P
Citation
A. Terleckibaricevic et al., EFFECT OF SULFUR-OXIDES ON SURFACE-STATE AND CARBON-MONOXIDE OXIDATION ACTIVITY OF CUXZN1-XCR2O4 MIXED OXIDES, Applied catalysis. A, General, 108(2), 1994, pp. 115-122
Citations number
19
Categorie Soggetti
Chemistry Physical","Environmental Sciences
Journal title
Applied catalysis. A, General → ACNP
ISSN journal
0926860X
Volume
108
Issue
2
Year of publication
1994
Pages
115 - 122
Database
ISI
SICI code
0926-860X(1994)108:2<115:EOSOSA>2.0.ZU;2-L
Abstract
The effect of mixed sulfur oxides pretreatment on the surface state an d carbon monoxide oxidation activity of CuxZn1-xCr2O4 mixed oxides, ha s been investigated using X-ray photoelectron spectroscopy (XPS) and k inetic measurements. The results obtained indicate that SO(x) species bind preferentially to the surface zinc ions, which thus protect from poisoning the surface copper ions which are the active species for car bon monoxide oxidation.