Role of the support on the behavior of Ag-based catalysts for NH3 selective catalytic oxidation (NH3-SCO)

- Different supports are used to evaluate the formation of various silver species.
- Al2O3 supported silver catalyst shows an excellent catalytic performance.
- Small Ag0 particle with high dispersion favors the NH3-SCO reaction.
- Oxidized Ag species and surface acidity enhanced the N2 selectivity above 140 °C.