Epoxidation catalysts derived from introduction of titanium centers onto the surface of mesoporous aluminophosphate: Comparisons with analogous catalysts based on mesoporous silica

► Ti-grafted mesoporous aluminophosphate catalysts for the oxidation of cyclohexene. ► Ti species exist in isolated 4-coordinate Ti(IV) centers and polymeric species. ► Catalytic performances are correlated with the structural nature of the active sites. ► TiAlPO catalysts have comparable catalytic properties to similar Ti-SBA15 catalysts. ► TiAlPO catalysts exhibit a higher tendency toward allylic oxidation.