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Assembling covalent organic framework membranes with superior ion exchange capacity

Author

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  • Xiaoyao Wang

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

  • Benbing Shi

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

  • Hao Yang

    (Soochow University)

  • Jingyuan Guan

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

  • Xu Liang

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

  • Chunyang Fan

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

  • Xinda You

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

  • Yanan Wang

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

  • Zhe Zhang

    (Soochow University)

  • Hong Wu

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

  • Tao Cheng

    (Soochow University)

  • Runnan Zhang

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

  • Zhongyi Jiang

    (Tianjin University
    Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)
    Zhejiang Institute of Tianjin University
    International Campus of Tianjin University)

Abstract

Ionic covalent organic framework membranes (iCOFMs) hold great promise in ion conduction-relevant applications because the high content and monodispersed ionic groups could afford superior ion conduction. The key to push the upper limit of ion conductivity is to maximize the ion exchange capacity (IEC). Here, we explore iCOFMs with a superhigh ion exchange capacity of 4.6 mmol g−1, using a dual-activation interfacial polymerization strategy. Fukui function is employed as a descriptor of monomer reactivity. We use Brønsted acid to activate aldehyde monomers in organic phase and Brønsted base to activate ionic amine monomers in water phase. After the dual-activation, the reaction between aldehyde monomer and amine monomer at the water-organic interface is significantly accelerated, leading to iCOFMs with high crystallinity. The resultant iCOFMs display a prominent proton conductivity up to 0.66 S cm−1, holding great promise in ion transport and ionic separation applications.

Suggested Citation

  • Xiaoyao Wang & Benbing Shi & Hao Yang & Jingyuan Guan & Xu Liang & Chunyang Fan & Xinda You & Yanan Wang & Zhe Zhang & Hong Wu & Tao Cheng & Runnan Zhang & Zhongyi Jiang, 2022. "Assembling covalent organic framework membranes with superior ion exchange capacity," Nature Communications, Nature, vol. 13(1), pages 1-9, December.
    • Handle: RePEc:nat:natcom:v:13:y:2022:i:1:d:10.1038_s41467-022-28643-8
    DOI: 10.1038/s41467-022-28643-8
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    References listed on IDEAS

    as
    1. Hao Yang & Leixin Yang & Hongjian Wang & Ziang Xu & Yumeng Zhao & Yi Luo & Nayab Nasir & Yimeng Song & Hong Wu & Fusheng Pan & Zhongyi Jiang, 2019. "Covalent organic framework membranes through a mixed-dimensional assembly for molecular separations," Nature Communications, Nature, vol. 10(1), pages 1-10, December.
    2. Yang Li & Qianxun Wu & Xinghua Guo & Meicheng Zhang & Bin Chen & Guanyi Wei & Xing Li & Xiaofeng Li & Shoujian Li & Lijian Ma, 2020. "Laminated self-standing covalent organic framework membrane with uniformly distributed subnanopores for ionic and molecular sieving," Nature Communications, Nature, vol. 11(1), pages 1-9, December.
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    Cited by:

    1. Yang Xie & Wenjing Wang & Zeyue Zhang & Jian Li & Bo Gui & Junliang Sun & Daqiang Yuan & Cheng Wang, 2024. "Fine-tuning the pore environment of ultramicroporous three-dimensional covalent organic frameworks for efficient one-step ethylene purification," Nature Communications, Nature, vol. 15(1), pages 1-7, December.
    2. Tianhao Zhu & Yan Kong & Bohui Lyu & Li Cao & Benbing Shi & Xiaoyao Wang & Xiao Pang & Chunyang Fan & Chao Yang & Hong Wu & Zhongyi Jiang, 2023. "3D covalent organic framework membrane with fast and selective ion transport," Nature Communications, Nature, vol. 14(1), pages 1-9, December.

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