A Ce–Cu–Ti oxide catalyst for the selective catalytic reduction of NO with NH3

Abstract A Ce–Cu–Ti complex oxide catalyst for the selective catalytic reduction of NO with NH 3 was prepared by coprecipitation method. XRD and H 2 –TPR reveal that the strong interaction between Ce and Cu results in the production of a new active oxygen species with high reducibility at low temperatures. Compared with Ce–Ti oxide catalyst, the Ce–Cu–Ti oxide catalyst produces better performance at the temperatures lower than 350 °C and higher SO 2 -resistent ability. H 2 O will reduce the SCR activity of Ce–Cu–Ti catalyst at low temperatures while promoting the catalyst performance at temperatures more than 350 °C.