Parametric study of propene oxidation over Pt and Au catalysts supported on sulphated and unsulphated titania

▶ Pt and Au supported on sulphated or unsulphated TiO2 were tested for the catalytic oxidation of C3H6. ▶ For the Pt catalysts, the rate determining step was oxygen adsorption. ▶ For the Au catalysts the limiting step was concluded to be the propene dissociation.