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  • Title: Ordered macro-microporous metal-organic framework single crystals.
    Author: Shen K, Zhang L, Chen X, Liu L, Zhang D, Han Y, Chen J, Long J, Luque R, Li Y, Chen B.
    Journal: Science; 2018 Jan 12; 359(6372):206-210. PubMed ID: 29326271.
    Abstract:
    We constructed highly oriented and ordered macropores within metal-organic framework (MOF) single crystals, opening up the area of three-dimensional-ordered macro-microporous materials (that is, materials containing both macro- and micropores) in single-crystalline form. Our methodology relies on the strong shaping effects of a polystyrene nanosphere monolith template and a double-solvent-induced heterogeneous nucleation approach. This process synergistically enabled the in situ growth of MOFs within ordered voids, rendering a single crystal with oriented and ordered macro-microporous structure. The improved mass diffusion properties of such hierarchical frameworks, together with their robust single-crystalline nature, endow them with superior catalytic activity and recyclability for bulky-molecule reactions, as compared with conventional, polycrystalline hollow, and disordered macroporous ZIF-8.
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