Efficient fabrication of active CuO-CeO2/SBA-15 catalysts for preferential oxidation of CO by solid state impregnation.

Highlights: [•] CuO-CeO2/SBA-15 catalysts were prepared by a novel solid state impregnation method. [•] Both copper species and ceria can be well dispersed. [•] In comparison with wet impregnation, the solid state impregnation derived catalyst owns increased interfacial CuO-CeO2 entities and enhanced interfacial interactions. [•] CuO-CeO2/SBA-15 catalyst from solid state impregnation shows enhanced CO-PROX activity and good tolerance to CO2 and H2O. [Copyright &y& Elsevier]