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Enhance gas-separation efficiency of mixed matrix membranes by lamellarly arranged metal-organic polyhedron

Nano Research, ISSN: 1998-0000, Vol: 16, Issue: 8, Page: 11450-11454
2023
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Article Description

Eliminating the nonselective permeation path inside the mixed-matrix membranes (MMMs) is critical for fabrication of gas separation membranes. We demonstrate that by utilizing the phase separation of block copolymers, we are able to introduce metal-organic polyhedrons (MOPs) with precise pore sizes into a polymer matrix and form an ordered layered structure. We also prove that, by arranging MOP cages into a continuous nanosheet-like layer structure, we are able to generate repeated MOP-effective pathways and deplete the MOP-free permeation pathways, thus enhancing the gas-separation efficiency of MMMs. [Figure not available: see fulltext.].

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