Effect of sulfur oxides on surface state and carbon monoxide oxidation activity of CuxZn1-xCr2O4 mixed oxides
Autor: | Ana Terlecki-Baricevic, Dušan Jovanović, Tsvetana Marinova, Boško Grbić, Plamen Kirilov-Stefanov |
---|---|
Rok vydání: | 1994 |
Předmět: | |
Zdroj: | Applied Catalysis A: General. 108:115-122 |
ISSN: | 0926-860X |
Popis: | The effect of mixed sulfur oxides pretreatment on the surface state and carbon monoxide oxidation activity of Cu x Zn 1− x Cr 2 O 4 mixed oxides, has been investigated using X-ray photoelectron spectroscopy (XPS) and kinetic 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 carbon monoxide oxidation. |
Databáze: | OpenAIRE |
Externí odkaz: |