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Internal structure of the supraparticles assembled from polyhedral MOFs. a) X‐ray transmission image of a C‐ZIF‐8 supraparticle, showing its onion‐like structure near the outer surface. b)–e) Focused ion beam cross‐sections of a RD‐ZIF‐8 (b), TRD‐ZIF‐8 (c), C‐ZIF‐8 (d) and O‐UiO‐66 (e) supraparticles, showing their corresponding thicknesses of the onion‐like layers.
