Novel Fe–Ce–Ti catalyst with remarkable performance for the selective catalytic reduction of NO x by NH 3

The redox cycle (Ce 4+ + Fe 2+ ↔ Ce 3+ + Fe 3+ ) over the Fe–Ce–Ti catalyst contributes to the activation of NO x and NH 3 and thus the formation of reaction intermediates, leading to the high catalytic performance for the NH 3 -SCR of NO x .