微型多孔材料
材料科学
膜
金属有机骨架
聚合物
纳米颗粒
配体(生物化学)
纳米技术
纳米复合材料
化学工程
多孔性
化学
有机化学
复合材料
吸附
工程类
受体
生物化学
作者
Tae Hoon Lee,Byung Kwan Lee,Seung Yeon Yoo,Hyun‐Hee Lee,Wan-Ni Wu,Zachary P. Smith,Ho Bum Park
标识
DOI:10.1038/s41467-023-44027-y
摘要
Abstract Integrating different modification strategies into a single step to achieve the desired properties of metal–organic frameworks (MOFs) has been very synthetically challenging, especially in developing advanced MOF/polymer mixed matrix membranes (MMMs). Herein, we report a polymer–MOF (polyMOF) system constructed from a carboxylated polymer with intrinsic microporosity (cPIM-1) ligand. This intrinsically microporous ligand could coordinate with metals, leading to ~100 nm-sized polyMOF nanoparticles. Compared to control MOFs, these polyMOFs exhibit enhanced ultramicroporosity for efficient molecular sieving, and they have better dispersion properties in casting solutions to prepare MMMs. Ultimately, integrating coordination chemistries through the cPIM-1 and polymer-based functionality into porous materials results in polyMOF/PIM-1 MMMs that display excellent CO 2 separation performance (surpassing the CO 2 /N 2 and CO 2 /CH 4 upper bounds). In addition to exploring the physicochemical and transport properties of this polyMOF system, scalability has been demonstrated by converting the developed MMM material into large-area (400 cm 2 ) thin-film nanocomposite (TFN) membranes.
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