CATALYTIC PROPERTIES OF LA2CUO4 IN THE CO+NO REACTION

La2CuO4 is an active catalyst for the reduction of NO by CO. Under rea ction conditions, the catalyst exhibits an activation which results in a lowering of the light-off temperature by 80 degrees C. XRD, TEM and EDX analysis carried out after the catalytic test indicate that the m ixed oxide has been reduced to form a La2O3, Cu binary system. It seem s that metallic copper species are the most active sites in the CO + N O reaction.