Fast synthesis of highly crystallized LSX zeolite with boosted carbon dioxide hydrogenation activity

Fabrication of suitable zeolite-based multifunctional catalysts has been perceived as a potential method for CO₂ conversion to value-added chemicals and fuels. Thus, a highly crystallized LSX zeolite was prepared directly for the first time without aging and strong alkali sodium/potassium salt. Besides, the hierarchical structure was also successfully introduced by template-free method. The resulted LSX zeolite-based catalyst can significantly boost CO₂ hydrogenation with a preferential production of methanol (100% selectivity). This can be owing to the electron transfer between extra framework aluminum (EFAl) and ZnO species that drives the remarkable adsorption capability of CO₂ and the formate activation pathway. Furthermore, the highly dispersive Cu nanoparticles that interplay with zeolite host and ZnO species render convenient access to the activated CO₂ * species for those dissociated H after their spillover. More importantly, an exceptional stability can also be obtained, indicating the promising prospect in practical and industrial application.