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A solution-processable and ultra-permeable conjugated microporous thermoset for selective hydrogen separation

Author

Listed:
  • Wei Liu

    (National University of Singapore
    National University of Singapore)

  • Shu-Dong Jiang

    (National University of Singapore)

  • Youguo Yan

    (China University of Petroleum)

  • Wensen Wang

    (China University of Petroleum)

  • Jing Li

    (National University of Singapore)

  • Kai Leng

    (National University of Singapore)

  • Susilo Japip

    (National University of Singapore)

  • Jiangtao Liu

    (National University of Singapore)

  • Hai Xu

    (National University of Singapore)

  • Yanpeng Liu

    (National University of Singapore)

  • In-Hyeok Park

    (National University of Singapore)

  • Yang Bao

    (National University of Singapore)

  • Wei Yu

    (National University of Singapore)

  • Michael D. Guiver

    (Tianjin University
    Collaborative Innovation Center of Chemical Science and Engineering (Tianjin))

  • Sui Zhang

    (National University of Singapore)

  • Kian Ping Loh

    (National University of Singapore)

Abstract

The synthesis of a polymer that combines the processability of plastics with the extreme rigidity of cross-linked organic networks is highly attractive for molecular sieving applications. However, cross-linked networks are typically insoluble or infusible, preventing them from being processed as plastics. Here, we report a solution-processable conjugated microporous thermoset with permanent pores of ~0.4 nm, prepared by a simple heating process. When employed as a two-dimensional molecular sieving membrane for hydrogen separation, the membrane exhibits ultrahigh permeability with good selectivity for H2 over CO2, O2, N2, CH4, C3H6 and C3H8. The combined processability, structural rigidity and easy feasibility make this polymeric membrane promising for large-scale hydrogen separations of commercial and environmental relevance.

Suggested Citation

  • Wei Liu & Shu-Dong Jiang & Youguo Yan & Wensen Wang & Jing Li & Kai Leng & Susilo Japip & Jiangtao Liu & Hai Xu & Yanpeng Liu & In-Hyeok Park & Yang Bao & Wei Yu & Michael D. Guiver & Sui Zhang & Kian, 2020. "A solution-processable and ultra-permeable conjugated microporous thermoset for selective hydrogen separation," Nature Communications, Nature, vol. 11(1), pages 1-8, December.
    • Handle: RePEc:nat:natcom:v:11:y:2020:i:1:d:10.1038_s41467-020-15503-6
    DOI: 10.1038/s41467-020-15503-6
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