Spotlight on Large Surface Copper Cluster Role of Cu‐SAPO‐34 Catalyst in Standard NH3‐SCR Performances.

In the present study, the catalytic role and behavior of different copper cluster configurations during NH3 SCR, NO and NH3 oxidation reactions will be studied in detail. For this purpose, two preparation methods were performed. The physico‐chemical and surface properties were characterized by different techniques, such as XRD, ICP, N2 ads/des, HR‐TEM, XPS, NMR, ex‐situ/in‐situ DRIFT, NH3 TPD and H2 TPR, in order to evaluate the impact of copper incorporation method on redox active sites, and, as a consequence, to better understand the mechanism of the NH3 SCR reaction. [ABSTRACT FROM AUTHOR]