Diols Production From Glycerol Over Pt-Based Catalysts: On the Role Played by the Acid Sites of the Support

A series of 1 wt% AuPt (6:4) catalysts were prepared by sol immobilization using acidic [TiO2, H-Mordenite, SiO2, MCM-41, sulphated ZrO2 (S-ZrO2)] and one basic (MgO) oxide supports. A careful characterization of the catalyst was performed by HRTEM and FTIR spectroscopy. EDX analysis showed that on all catalysts only alloyed AuPt nanoparticles are present, but the final size of AuPt particles is significantly affected by the support. Indeed, on …