Fig. 2: Evaluation of PtSCuO/Al2O3 in comparison to other catalysts in the NH3-SCO reaction.

a, b NH3 conversion and N2 selectivity as a function of temperature; c activation energy of PtSCuO/Al2O3, CuO/Al2O3 Pt/Al2O3; d WSHV with refs (Table S210,11,12,13,14,15,16,17,18,19,20,21,22,23); e stability test of PtSCuO/Al2O3 at 200 °C; f activity of MSCuO/Al2O3 catalysts (M = Pt, Ru, Rh, Ag, or Au); g, h NH3 conversion and N2 selectivity as a function of Pt loading and temperature; i NH3 conversion of PtSCuO/Al2O3 with different Pt loadings at 200 °C. Reaction conditions: 50 mg catalyst, 5000 ppm NH3, 5% O2 balanced in He, gas flow: 100 mL/min, WHSV = 600 mL NH3·h−1·g−1.