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Simultaneous interlayer and intralayer space control in two-dimensional metal−organic frameworks for acetylene/ethylene separation

Author

Listed:
  • Jin Shen

    (Zhejiang University)

  • Xin He

    (Massachusetts Institute of Technology)

  • Tian Ke

    (Zhejiang University)

  • Rajamani Krishna

    (University of Amsterdam)

  • Jasper M. Baten

    (University of Amsterdam)

  • Rundao Chen

    (Zhejiang University)

  • Zongbi Bao

    (Zhejiang University)

  • Huabin Xing

    (Zhejiang University)

  • Mircea Dincǎ

    (Massachusetts Institute of Technology)

  • Zhiguo Zhang

    (Zhejiang University)

  • Qiwei Yang

    (Zhejiang University)

  • Qilong Ren

    (Zhejiang University)

Abstract

Three-dimensional metal−organic frameworks (MOFs) are cutting-edge materials in the adsorptive removal of trace gases due to the availability of abundant pores with specific chemistry. However, the development of ideal adsorbents combining high adsorption capacity with high selectivity and stability remains challenging. Here we demonstrate a strategy to design adsorbents that utilizes the tunability of interlayer and intralayer space of two-dimensional fluorinated MOFs for capturing acetylene from ethylene. Validated by X-ray diffraction and modeling, a systematic variation of linker atom oxidation state enables fine regulation of layer stacking pattern and linker conformation, which affords a strong interlayer trapping of molecules along with cooperative intralayer binding. The resultant robust materials (ZUL-100 and ZUL-200) exhibit benchmark capacity in the pressure range of 0.001–0.05 bar with high selectivity. Their efficiency in acetylene/ethylene separation is confirmed by breakthrough experiments, giving excellent ethylene productivities (121 mmol/g from 1/99 mixture, 99.9999%), even when cycled under moist conditions.

Suggested Citation

  • Jin Shen & Xin He & Tian Ke & Rajamani Krishna & Jasper M. Baten & Rundao Chen & Zongbi Bao & Huabin Xing & Mircea Dincǎ & Zhiguo Zhang & Qiwei Yang & Qilong Ren, 2020. "Simultaneous interlayer and intralayer space control in two-dimensional metal−organic frameworks for acetylene/ethylene separation," Nature Communications, Nature, vol. 11(1), pages 1-10, December.
    • Handle: RePEc:nat:natcom:v:11:y:2020:i:1:d:10.1038_s41467-020-20101-7
    DOI: 10.1038/s41467-020-20101-7
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    Cited by:

    1. Yong Peng & Hanting Xiong & Peixin Zhang & Zhiwei Zhao & Xing Liu & Shihui Tang & Yuan Liu & Zhenliang Zhu & Weizhen Zhou & Zhenning Deng & Junhui Liu & Yao Zhong & Zeliang Wu & Jingwen Chen & Zhenyu , 2024. "Interaction-selective molecular sieving adsorbent for direct separation of ethylene from senary C2-C4 olefin/paraffin mixture," Nature Communications, Nature, vol. 15(1), pages 1-12, December.
    2. Qingju Wang & Jianbo Hu & Lifeng Yang & Zhaoqiang Zhang & Tian Ke & Xili Cui & Huabin Xing, 2022. "One-step removal of alkynes and propadiene from cracking gases using a multi-functional molecular separator," Nature Communications, Nature, vol. 13(1), pages 1-8, December.

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