Multiple and complex crystallization process of zeolite including complementary single-molecule condensation and particle assembly,a nd alternately dominant nucleation and growth behavior,p layst he critical role in zeolite crystallization but meanwhile makes us hardt os tudy the respective effects.Herein, we strip nuclei from the synthetic solution and find that high-ordered nucleus (subcrystal) is the premise to ignite high-speed growth of zeolite crystal. The high-ordered subcrystals with the size of only 6-10 nm possess regular aperture structure and microporous area similar to zeolite nanocrystal. Interestingly,aunitary oriented aggregation process of the subcrystals towards nanosheets is well observed and characterized where single-molecule addition process is greatly repressed. If aw ider range of zeotype nuclei can be expanded, an ew synthetic strategy of zeotype materials with heterogeneous framework and active sites may be expected, which may novelizez eolite catalytic properties.

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A simple one-step strategy for the preparation of a bifunctional Zr-Al-Beta zeolite with external open Zr(iv) sites, showing high activity for the cascade reaction.