Effect of Ni doping in Ni x Mn 1−x Ti 10 (x = 0.1–0.5) on activity and SO 2 resistance for NH 3 -SCR of NO studied with in situ DRIFTS

The Ni 0.4 Mn 0.6 Ti 10 catalyst exhibits excellent SO 2 resistance, high NO conversion and N 2 selectivity in the range of 190–360 °C even in the presence of 100 ppm SO 2 and 15% H 2 O under a GHSV of 40 000 h −1 due to the interaction among Mn, Ni and Ti oxides.