Insights into the influence of the Ag loading on Al2O3 in the H2-assisted C3H6-SCR of NOx

- NOx reduction to N2 in H2-C3H6-SCR increases with decreasing Ag loadings.
- Changes in the kinetic parameters remarkably correlate to the changes in NOx uptakes.
- C3H6 and H2 are activated on Ag species, while NOx are activated on Al2O3.
- The number of active sites on Al2O3 accounts for the observed catalytic activities.