Al-Ghazzawi Fatimah, Conte Luke, Potts Michael W, Richardson Christopher, Wagner Pawel
Intelligent Polymer Research Institute and ARC Centre of Excellence for Electromaterials Science, AIIM Faculty, Innovation Campus, University of Wollongong, North Wollongong, NSW 2522, Australia.
Al-Nasiriyah Technical Institute, Southern Technical University, Nasiriyah, Thi-Qar 64001, Iraq.
ACS Appl Mater Interfaces. 2024 Aug 21;16(33):44270-44277. doi: 10.1021/acsami.4c08609. Epub 2024 Aug 7.
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.
金属有机框架（MOFs）领域面临的一个突出挑战是构建具有更高实用性的形式。反应挤出印刷（REP）是一种能够根据需求在现场直接从分子成分形成薄膜的技术。在此，我们首次将REP应用于沸石咪唑酯框架（ZIFs），并研究溶剂和摩尔比在反应印刷薄膜中对ZIF - 8和ZIF - L之间相分布的相互作用。我们的结果表明，REP可控地引导ZIF - L和ZIF - 8之间的相形成，并且REP还能控制晶体尺寸，特别是高质量的ZIF - 8薄膜以低分散性的相互连接纳米颗粒形式产生。重要的是，我们表明REP对既定的表面功能化技术有响应，可控制线宽和厚度等重要印刷参数。这项工作将REP的应用范围扩展到了重要的ZIFs类别。
