Synthesis and application of core-shell, hollow, yolk-shell multifunctional structure zeolites

Researches in the synthesis of zeolite molecular sieves main focus on manipulating the properties of zeolite particles by adjusting their size, composition and morphology. Especially, the “core and shell concept” particles, which realize the integration of two or more functions into a single geometric shape, have been extensively studied. The “core and shell concept” particles related to zeolite are synthesized with core-shell structure, hollow structure, and yolk-shell structure through bottom-up and top-down methods. The multifunctionality of a single material is achieved through the formation of multiple shells and the manipulation of core or shell materials. This article presents novel design strategies for numerous zeolite-related “core and shell concept” particles, being introduced to the study of their application among conventional thermal catalysis. However, the high cost associated with preparing such catalysts and the need for deeper research into their application present significant challenges.