Dynamics of redox behavior of nano-sized VOx species over Ti–Si-MCM-41 from…

Abstract. Time-resolved in situ UV/Vis spectroscopy has been successfully applied for analyzing the reduction degree of highly dispersed VOx (0.4–1.1 V/nm2) species over Ti–Si-MCM-41 (Ti/Si = 0–1.5) materials in the oxidative dehydrogenation of propane (ODP) as well as for deriving the kinetic parameters of reduction (with C3H8) and reoxidation (with O2 and N2O) of these species. This…