Reactive Extrusion Printing of Zeolitic Imidazolate Framework Films.

ACS Appl Mater Interfaces

Intelligent Polymer Research Institute and ARC Centre of Excellence for Electromaterials Science, AIIM Faculty, Innovation Campus, University of Wollongong, North Wollongong, NSW 2522, Australia.

Published: August 2024


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Article Abstract

An outstanding challenge for the field of metal-organic frameworks (MOFs) is structuring to form forms with greater useability. Reactive extrusion printing (REP) is a technique for the direct formation of films from their molecular components on-demand and on-location. Here we apply REP for the first time to zeolitic imidazolate frameworks (ZIFs) and study the interplay of solvent and molarity ratio on the phase distribution between ZIF-8 and ZIF-L in reactive printed films. Our results show that REP controllably directs phase formation between ZIF-L and ZIF-8 and that REP also gives control over crystal size and that high-quality ZIF-8 films, in particular, are produced in low-dispersity interconnected nanoparticulate form. Importantly, we show that REP is responsive to established surface-functionalization techniques to control important printing parameters of line width and thickness. This work expands the repertoire of REP to the important class of ZIFs.

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http://dx.doi.org/10.1021/acsami.4c08609DOI Listing

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