Pd and PdAu on mesoporous silica for methane oxidation : Effect of SO2

Palladium and gold-palladium catalysts supported on mesoporous silica were prepared by incipient wetness impregnation. They were characterized by XPS, XRD, BET, and FTIR acidity measurements. The activity was tested in the oxidation of methane under lean conditions. The effect of adding SO2 to the r...

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Bibliographic Details
Published in:Journal of catalysis 2007-10, Vol.251 (1), p.94-102
Main Authors: VENEZIA, A. M, MURANIA, R, PANTALEO, G, DEGANELLO, G
Format: Article
Language:English
Subjects:
Catalysis
Chemistry
Colloidal state and disperse state
Exact sciences and technology
General and physical chemistry
Gold
Methane
Oxidation
Porous materials
Silica
Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry
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Summary:Palladium and gold-palladium catalysts supported on mesoporous silica were prepared by incipient wetness impregnation. They were characterized by XPS, XRD, BET, and FTIR acidity measurements. The activity was tested in the oxidation of methane under lean conditions. The effect of adding SO2 to the reactant mixture was investigated. Test reactions were consecutively performed to evaluate the thermal stability and poisoning reversibility. The palladium catalyst performed quite well in terms of the light-off temperature (T50
ISSN:0021-9517
1090-2694
DOI:10.1016/j.jcat.2007.07.013