Promotive Effect of MO_x (M=Ce, Mn) Mechanically Mixed with Au/TiO2 on the Catalytic Activity for Nitrogen Monoxide Reduction by Propene

摘要

Mechanical mixtures of nano-sized Au supported on TiO2 and MO_x (M=Ce, Mn) with different ratios had been prepared and tested for the selective catalytic reduction of NO by C3H6 in the present of excess oxygen. The enhancement of the catalytic performance at low temperatures was observed. The NO oxidation activity and the temperature programmed desorption (TPD) of NO_x were also studied for understanding the synergic effects in the mixtures.