Tuning the Number of Active Sites and Turnover Frequencies by Surface Modification of Supported ReO4/(SiO2–Al2O3) Catalysts for Olefin Metathesis

A series of supported ReOx catalysts were synthesized by incipient-wetness impregnation of perrhenic acid onto one component (Al2O3 and SiO2) and surface-modified mixed-oxide supports (SiO2/Al2O3, ...