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Hybrid Organic–Inorganic Microporous Membranes with High Hydrothermal Stability for the Separation of Carbon Dioxide

Authors

  • Dr. Hong Qi,

    Corresponding author
    1. Membrane Science & Technology Research Center, State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing University of Technology, Nanjing 210009, Jiangsu Province (PR China), Fax: (+86) 517 394-2349
    • Membrane Science & Technology Research Center, State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing University of Technology, Nanjing 210009, Jiangsu Province (PR China), Fax: (+86) 517 394-2349
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  • Jing Han,

    1. Membrane Science & Technology Research Center, State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing University of Technology, Nanjing 210009, Jiangsu Province (PR China), Fax: (+86) 517 394-2349
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  • Prof. Nanping Xu,

    1. Membrane Science & Technology Research Center, State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing University of Technology, Nanjing 210009, Jiangsu Province (PR China), Fax: (+86) 517 394-2349
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  • Dr. Henny J. M. Bouwmeester

    Corresponding author
    1. Membrane Technology Group, Inorganic Membranes, Faculty of Science and Technology, MESA+ Institute for Nanotechnology, University of Twente, P.O. Box 217, 7500 AE Enschede (The Netherlands), Fax: (+31)534894611
    • Membrane Technology Group, Inorganic Membranes, Faculty of Science and Technology, MESA+ Institute for Nanotechnology, University of Twente, P.O. Box 217, 7500 AE Enschede (The Netherlands), Fax: (+31)534894611
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Abstract

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Membranes only: A hybrid organic–inorganic membrane for CO2 separation is prepared by sol–gel deposition of a microporous ethylene-bridged silsesquioxane layer onto a multilayer support. Low CO2 permeance is imparted by doping acidic niobium centers into the hybrid silica network. The membrane exhibits superior hydrothermal stability with He/CO2 selectivities as high as 3700.

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