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A High-Performance Gas-Separation Membrane Containing Submicrometer-Sized Metal–Organic Framework Crystals

Authors

  • Dr. Tae-Hyun Bae,

    1. School of Chemical & Biomolecular Engineering, Georgia Institute of Technology, 311 Ferst Drive NW, Atlanta, GA 30332-0100 (USA), Fax: (+1) 404-894-4200
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  • Jong Suk Lee,

    1. School of Chemical & Biomolecular Engineering, Georgia Institute of Technology, 311 Ferst Drive NW, Atlanta, GA 30332-0100 (USA), Fax: (+1) 404-894-4200
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  • Dr. Wulin Qiu,

    1. School of Chemical & Biomolecular Engineering, Georgia Institute of Technology, 311 Ferst Drive NW, Atlanta, GA 30332-0100 (USA), Fax: (+1) 404-894-4200
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  • Prof. Dr. William J. Koros,

    1. School of Chemical & Biomolecular Engineering, Georgia Institute of Technology, 311 Ferst Drive NW, Atlanta, GA 30332-0100 (USA), Fax: (+1) 404-894-4200
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  • Prof. Dr. Christopher W. Jones,

    Corresponding author
    1. School of Chemical & Biomolecular Engineering, Georgia Institute of Technology, 311 Ferst Drive NW, Atlanta, GA 30332-0100 (USA), Fax: (+1) 404-894-4200
    • School of Chemical & Biomolecular Engineering, Georgia Institute of Technology, 311 Ferst Drive NW, Atlanta, GA 30332-0100 (USA), Fax: (+1) 404-894-4200
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  • Prof. Dr. Sankar Nair

    Corresponding author
    1. School of Chemical & Biomolecular Engineering, Georgia Institute of Technology, 311 Ferst Drive NW, Atlanta, GA 30332-0100 (USA), Fax: (+1) 404-894-4200
    • School of Chemical & Biomolecular Engineering, Georgia Institute of Technology, 311 Ferst Drive NW, Atlanta, GA 30332-0100 (USA), Fax: (+1) 404-894-4200
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  • This work was supported by ExxonMobil Research and Engineering.

Abstract

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Well matched: Submicrometer-sized metal–organic framework (MOF) crystals (ZIF-90) were synthesized by a nonsolvent-induced crystallization technique and incorporated in mixed-matrix gas-separation membranes. ZIF-90/6FDA-DAM membranes (empty pink circle; beyond the upper bound for polymer membranes) show unprecedented high performance for CO2/CH4 separation by a MOF-based membrane. The key is the combination of the highly selective MOF and a highly permeable polymer.

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