Novel approach for a cerium-based highly-efficient catalyst with excellent NH3-SCR performance

Abstract

A highly-efficient NH₃-SCR catalyst, CeO₂/WO₃–TiO₂, was prepared by a novel stepwise precipitation approach. This catalyst showed excellent catalytic performance, with superior low-temperature activity, high N₂ selectivity and a broad operational temperature window. Furthermore, the CeO₂/WO₃–TiO₂ catalyst could perform well even under an extremely high space velocity condition of 1 000 000 h⁻¹.