MoO3 modified CeO2/TiO2 catalyst prepared by a single step sol–gel method for selective catalytic reduction of NO with NH3

Abstract A MoO 3 modified CeO 2 /TiO 2 catalyst was prepared by a single step sol–gel method for selective catalytic reduction of NO with NH 3 . The experimental results indicates that MoO 3 modified CeO 2 /TiO 2 catalyst exhibited higher SCR activity and resistance to 10% H 2 O and 1000 ppm SO 2 . From the characterization results, it can be concluded that good physical properties, highly dispersed active species of Ce and Mo, more appearance of Ce 3+ and chemisorbed oxygen, strong interaction among ceria, molybdenum and titania, and high oxygen storage capacity might contribute to the excellent deNO x performance of CeO 2 –MoO 3 /TiO 2 catalyst prepared by a single step sol–gel method.

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