Selective Catalytic Reduction of Nitrogen Oxides over Fe Zeolites: New Insight into Active Sites and Reaction Mechanisms

A combined catalytic and characterization study of Fe-ZSM-5 catalysts for DeNOx reactions will be presented. Data from catalysts of different preparation show that standard SCR does not proceed via NO₂ formation with subsequent fast SCR, and that the active sites of NO oxidation, standard and fast SCR are all different.