Deconstructing the black box of zeolite crystallization gels by species-specific isolation

Résumé fourni par la source

nonclassical particle attachment. More importantly, by tracking the evolution of these species and combining with the Kolmogorov-Johnson-Mehl-Avrami (KJMA) model, we delineate the crystallization into three stages: nucleation, particle attachment, and molecular addition. We reveal that the final properties of the zeolite are governed by a dynamic competition between the rate of HOP attachment and that of structural/elemental maturation (dealumination). This competition dictates the temporal evolution of defects, porosity, and composition. Our work dismantles the gel black box by establishing a species-resolved crystallization pathway, offering a universal strategy for mechanistic understanding in complex media and thereby paving the way for the precise synthesis of zeolites.

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