Ce-P-O catalyst for selective catalytic reduction of NO with NH_3

Ce-P-O catalyst for the selective catalytic reduction of NO with NH3 was prepared and characterized by XRD,SEM,N2-adsorption,H2-TPR and NH3-TPD.The catalyst properties were investigated.The results showed that Ce-P-O catalyst calcined at 500 ℃ exhibited higher activities for the removal of NOx,NO conversion90% under the reaction condition of space velocity 20 000 h-1 and NO conversion were not significantly affected in the presence of H2O and SO2.