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Carbon hollow fiber membranes for a molecular sieve with precise-cutoff ultramicropores for superior hydrogen separation

Author

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  • Linfeng Lei

    (Norwegian University of Science and Technology)

  • Fengjiao Pan

    (Chinese Academy of Sciences)

  • Arne Lindbråthen

    (Norwegian University of Science and Technology)

  • Xiangping Zhang

    (Chinese Academy of Sciences)

  • Magne Hillestad

    (Norwegian University of Science and Technology)

  • Yi Nie

    (Chinese Academy of Sciences)

  • Lu Bai

    (Chinese Academy of Sciences)

  • Xuezhong He

    (Norwegian University of Science and Technology
    Guangdong Technion Israel Institute of Technology (GTIIT))

  • Michael D. Guiver

    (Tianjin University)

Abstract

Carbon molecular sieve (CMS) membranes with rigid and uniform pore structures are ideal candidates for high temperature- and pressure-demanded separations, such as hydrogen purification from the steam methane reforming process. Here, we report a facile and scalable method for the fabrication of cellulose-based asymmetric carbon hollow fiber membranes (CHFMs) with ultramicropores of 3–4 Å for superior H2 separation. The membrane fabrication process does not require complex pretreatments to avoid pore collapse before the carbonization of cellulose precursors. A H2/CO2 selectivity of 83.9 at 130 °C (H2/N2 selectivity of >800, H2/CH4 selectivity of >5700) demonstrates that the membrane provides a precise cutoff to discriminate between small gas molecules (H2) and larger gas molecules. In addition, the membrane exhibits superior mixed gas separation performances combined with water vapor- and high pressure-resistant stability. The present approach for the fabrication of high-performance CMS membranes derived from cellulose precursors opens a new avenue for H2-related separations.

Suggested Citation

  • Linfeng Lei & Fengjiao Pan & Arne Lindbråthen & Xiangping Zhang & Magne Hillestad & Yi Nie & Lu Bai & Xuezhong He & Michael D. Guiver, 2021. "Carbon hollow fiber membranes for a molecular sieve with precise-cutoff ultramicropores for superior hydrogen separation," Nature Communications, Nature, vol. 12(1), pages 1-9, December.
  • Handle: RePEc:nat:natcom:v:12:y:2021:i:1:d:10.1038_s41467-020-20628-9
    DOI: 10.1038/s41467-020-20628-9
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    Cited by:

    1. Leiqing Hu & Won-Il Lee & Soumyabrata Roy & Ashwanth Subramanian & Kim Kisslinger & Lingxiang Zhu & Shouhong Fan & Sooyeon Hwang & Vinh T. Bui & Thien Tran & Gengyi Zhang & Yifu Ding & Pulickel M. Aja, 2024. "Hierarchically porous and single Zn atom-embedded carbon molecular sieves for H2 separations," Nature Communications, Nature, vol. 15(1), pages 1-8, December.
    2. Ruoxin Wang & Jianhao Qian & Xiaofang Chen & Ze-Xian Low & Yu Chen & Hongyu Ma & Heng-An Wu & Cara M. Doherty & Durga Acharya & Zongli Xie & Matthew R. Hill & Wei Shen & Fengchao Wang & Huanting Wang, 2023. "Pyro-layered heterostructured nanosheet membrane for hydrogen separation," Nature Communications, Nature, vol. 14(1), pages 1-10, December.
    3. Banseok Oh & Hyeokjun Seo & Jihoon Choi & Sunggyu Lee & Dong-Yeun Koh, 2022. "Electron-mediated control of nanoporosity for targeted molecular separation in carbon membranes," Nature Communications, Nature, vol. 13(1), pages 1-10, December.

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