(196f) Synthesis of Bifunctional Zeolite-Encapsulated Metal Nanoparticles with Intimacy between Metal and Acid Sites for Tandem Catalysis

Bifunctional catalysts with metal-acid sites have been widely used in petrochemical and biomass processing. Close proximity between metal-acid sites in bifunctional catalysts plays a key role in determining selectivity in tandem reactions. One effective strategy for bringing meal-acid sites in intimate contact is to encapsulate metal nanoparticles (NPs) zeolites (M@zeolite). In this work, Pt@HZSM-5 with Brønsted acid sites and >90% Pt NPs encapsulation degree was synthesized for one-pot tandem furfural conversion into valeric biofuel. As a result, the encapsulated catalyst showed highly selective production of valeric biofuel, while HZSM-5 supported Pt NPs (Pt/HZSM-5) produced only 5% valeric biofulel due to severe catalyst deactivation.