Stoichiometry and Kinetics of Gas Phase Cyclohexene Epoxidation by a Silica-Supported tert-Butylperoxidititanium Complex

Immersion Calorimetry as a Tool To Evaluate the Catalytic Performance of Titanosilicate Materials in the Epoxidation of Cyclohexene

“…According to the literature, not only the number of active sites but also the surface chemistry of the titanosilicates is an important factor defining the degree of interaction of the different reactants and products with the solid surface and, consequently, its behavior in terms of activity and selectivity in the epoxidation of olefins. − Furthermore, in the absence of moisture the direct interaction of the olefin with the active sites on the surface is the rate-determining step with the reaction rate to the epoxide scaling with the concentration of olefins in the reaction mixture. , Since the titanosilicate materials all have similar active sites involved in catalysis (mainly exposed isolated titanium sites in predominantly tetrahedral coordination; see section ), the interaction of the olefin with the catalytic surface seems to play a defining role in the final catalytic activity. This implies that learning more about this interaction could lead to important insight into the catalytic activity of the materials.…”