Effect of doping with different amounts of nickel on the selective catalytic reduction NO of manganese oxides

Nickel-manganese oxides were studied for selective catalytic reduction of NO by XRD，H 2 -TPR and N 2 adsorption-desorption. The study was found that the catalyst Ni 0.4 Mn 0.6 O x showed the best SCR activity，the reasons may be as follows: Ni 0.4 Mn 0.6 O x catalyst showed the optimal synergistic effect between nickel and manganese and appropriate redox ability, which were conducive to NH 3 under the condition of low temperature catalytic reduction of NO．