Effect of Ce doping into V2O5-WO3/TiO2 catalysts on the selective catalytic reduction of NOx by NH3

The NO conversion of V2O5-WO3/CeO2-TiO2 catalysts modified by co-precipitation method was higher than V2O5-WO3/CeO2/TiO2 catalysts modified by impregnation methods beyond 2.5% Ce doping contents, due to their higher specific surface area, much dispersity of Ce component, more vacancies by more Ce3+ species, and more Brønsted acid sites than V2O5-WO3/CeO2/TiO2 catalysts.154