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In-situ restructuring of Ni-based metal organic frameworks for photocatalytic CO2 hydrogenation

Author

Listed:
  • Abdelaziz Gouda

    (University of Toronto
    University of Toronto
    University of Toronto)

  • Karen Hannouche

    (American University of Beirut)

  • Abhinav Mohan

    (University of Toronto
    University of Toronto)

  • Chengliang Mao

    (University of Toronto)

  • Ehsan Nikbin

    (University of Toronto)

  • Alexandre Carrière

    (Polytechnique Montreal)

  • Jessica Ye

    (University of Toronto)

  • Jane Y. Howe

    (University of Toronto
    University of Toronto)

  • Mohini Sain

    (University of Toronto
    University of Toronto)

  • Mohamad Hmadeh

    (University of Toronto
    American University of Beirut)

  • Geoffrey A. Ozin

    (University of Toronto
    University of Toronto)

Abstract

As the global quest for sustainable energy keeps rising, exploring novel efficient and practical photocatalysts remains a research and industrial urge. Particularly, metal organic frameworks were proven to contribute to various stages of the carbon cycle, from CO2 capture to its conversion. Herein, we report the photo-methanation activity of three isostructural, nickel-based metal organic frameworks incorporating additional niobium, iron, and aluminum sites, having demonstrated exceptional CO2 capture abilities from thin air in previous reports. The niobium version exhibits the highest performance, with a CO2 to CH4 conversion rate in the order of 750–7500 µmol*gcatalyst−1*h−1 between 180 °C and 240 °C, achieving 97% selectivity under light irradiation and atmospheric pressure. The in-depth characterization of this framework before and after catalysis reveals the occurrence of an in-situ restructuring process, whereas active surface species are formed under photocatalytic conditions, thus providing comprehensive structure-performance correlations for the development of efficient CO2 conversion photocatalysts.

Suggested Citation

  • Abdelaziz Gouda & Karen Hannouche & Abhinav Mohan & Chengliang Mao & Ehsan Nikbin & Alexandre Carrière & Jessica Ye & Jane Y. Howe & Mohini Sain & Mohamad Hmadeh & Geoffrey A. Ozin, 2025. "In-situ restructuring of Ni-based metal organic frameworks for photocatalytic CO2 hydrogenation," Nature Communications, Nature, vol. 16(1), pages 1-12, December.
    • Handle: RePEc:nat:natcom:v:16:y:2025:i:1:d:10.1038_s41467-025-55891-1
    DOI: 10.1038/s41467-025-55891-1
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