Research progress in metal-encapsulated heterogeneous zeolite catalysts
Fixation of metal nanoparticles in zeolite crystals is a new preparation method for heterogeneous catalysts(metal@zeolite),which is more stable than ordinary supported catalysts in many important reactions.In this paper,metal@zeolite catalysts were classified according to the size of metal species and their relative positions in zeolite pores,and the research progress in synthesis strategy and catalytic performance of metal@zeolite catalysts were briefly reviewed.The excellent anti-sintering,anti-leaching and selective catalytic performance of metal@zeolite catalysts were emphasized compared with ordinary supported catalysts.Finally,the challenges faced by metal@zeolite catalysts were summarized,and their application prospects were prospected.
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