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Unravelling exceptional acetylene and carbon dioxide adsorption within a tetra-amide functionalized metal-organic framework

Author

Listed:
  • Florian Moreau

    (School of Chemistry, University of Manchester)

  • Ivan da Silva

    (ISIS Neutron Facility, STFC Rutherford Appleton Laboratory)

  • Nada H. Al Smail

    (School of Chemistry, University of Nottingham)

  • Timothy L. Easun

    (School of Chemistry, Cardiff University)

  • Mathew Savage

    (School of Chemistry, University of Manchester)

  • Harry G. W. Godfrey

    (School of Chemistry, University of Manchester)

  • Stewart F. Parker

    (ISIS Neutron Facility, STFC Rutherford Appleton Laboratory)

  • Pascal Manuel

    (ISIS Neutron Facility, STFC Rutherford Appleton Laboratory)

  • Sihai Yang

    (School of Chemistry, University of Manchester)

  • Martin Schröder

    (School of Chemistry, University of Manchester)

Abstract

Understanding the mechanism of gas-sorbent interactions is of fundamental importance for the design of improved gas storage materials. Here we report the binding domains of carbon dioxide and acetylene in a tetra-amide functionalized metal-organic framework, MFM-188, at crystallographic resolution. Although exhibiting moderate porosity, desolvated MFM-188a exhibits exceptionally high carbon dioxide and acetylene adsorption uptakes with the latter (232 cm3 g−1 at 295 K and 1 bar) being the highest value observed for porous solids under these conditions to the best of our knowledge. Neutron diffraction and inelastic neutron scattering studies enable the direct observation of the role of amide groups in substrate binding, representing an example of probing gas-amide binding interactions by such experiments. This study reveals that the combination of polyamide groups, open metal sites, appropriate pore geometry and cooperative binding between guest molecules is responsible for the high uptakes of acetylene and carbon dioxide in MFM-188a.

Suggested Citation

  • Florian Moreau & Ivan da Silva & Nada H. Al Smail & Timothy L. Easun & Mathew Savage & Harry G. W. Godfrey & Stewart F. Parker & Pascal Manuel & Sihai Yang & Martin Schröder, 2017. "Unravelling exceptional acetylene and carbon dioxide adsorption within a tetra-amide functionalized metal-organic framework," Nature Communications, Nature, vol. 8(1), pages 1-9, April.
    • Handle: RePEc:nat:natcom:v:8:y:2017:i:1:d:10.1038_ncomms14085
    DOI: 10.1038/ncomms14085
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    Cited by:

    1. Enyu Wu & Xiao-Wen Gu & Di Liu & Xu Zhang & Hui Wu & Wei Zhou & Guodong Qian & Bin Li, 2023. "Incorporation of multiple supramolecular binding sites into a robust MOF for benchmark one-step ethylene purification," Nature Communications, Nature, vol. 14(1), pages 1-11, December.
    2. Jiyu Cui & Fang Wu & Wen Zhang & Lifeng Yang & Jianbo Hu & Yin Fang & Peng Ye & Qiang Zhang & Xian Suo & Yiming Mo & Xili Cui & Huajun Chen & Huabin Xing, 2023. "Direct prediction of gas adsorption via spatial atom interaction learning," Nature Communications, Nature, vol. 14(1), pages 1-9, December.

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