Study on the selective catalytic reduction of NO with toluene over CuO/CeZrO2. A confirmation for the three-function model of HC-SCR using the temperature programmed methods and in situ DRIFTS

- The presence of copper enhances NO reduction by toluene.
- NO reduction with toluene on Cu/CeZrO2 occurs according to the “three-function model”.
- Catalytic runs and in situ DRIFTS proved the occurrence of all three functions.
- NO and toluene are activated on Cu/CeZrO2 in the same temperature range.