PolyMOF nanoparticles constructed from intrinsically microporous polymer ligand towards scalable composite membranes for CO2 separation
Name
s41467-023-44027-y.pdf
Description
Published version
Size
2.84 MB
Format
Adobe PDF
Checksum (MD5)
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Author(s)
Lee, Tae Hoon
Lee, Byung Kwan
Yoo, Seung Yeon
Lee, Hyunhee
Wu, Wan-Ni
Smith, Zachary P
Park, Ho Bum
Date Issued
December 14, 2023
Journal
Nature Communications
Publisher
Springer Science and Business Media LLC
Citation
Lee, T.H., Lee, B.K., Yoo, S.Y. et al. PolyMOF nanoparticles constructed from intrinsically microporous polymer ligand towards scalable composite membranes for CO2 separation. Nat Commun 14, 8330 (2023).
Version
Final published version
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 CO2 separation performance (surpassing the CO2/N2 and CO2/CH4 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 cm2) thin-film nanocomposite (TFN) membranes.
MIT Department
Massachusetts Institute of Technology. Department of Chemical Engineering
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DOI of Published Version
https://doi.org/10.1038/s41467-023-44027-y
