TITANOSILICATE ZEOLITE CATALYST WITH ENCAPSULATED GOLD NANOPARTICLES, METHOD OF SYNTHESIS AND USE

摘要

A catalyst composition of a silica-titania (SiO₂/TiO₂) zeolite having a tetrahedral structure contains gold (Au) nanoparticles wherein the gold (Au) particles are encapsulated within and dispersed throughout void spaces of the zeolite. The catalyst may be prepared by forming an aqueous mixture of a silicon (Si) source, a titanium (Ti) source, a gold (Au) source, a gold complexing agent, and a structure-directing agent. The mixture is hydrothermally treated to provide a silica-titania (SiO₂/TiO₂) zeolite having a tetrahedral structure wherein the gold (Au) particles are encapsulated within and dispersed throughout void spaces of the zeolite. The catalyst composition can be contacted with a reaction feed under reaction conditions suitable for producing the reaction product.