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Synergistic binding sites in a metal-organic framework for the optical sensing of nitrogen dioxide

Author

Listed:
  • Isabel Castillo-Velilla

    (Universidad Autónoma de Madrid)

  • Ahmad Sousaraei

    (Universidad Autónoma de Madrid)

  • Ignacio Romero-Muñiz

    (Universidad Autónoma de Madrid)

  • Celia Castillo-Blas

    (Universidad Autónoma de Madrid)

  • Alba S. J. Méndez

    (Deutsches Elektronen-Synchrotron DESY)

  • Freddy E. Oropeza

    (IMDEA Energy, Parque Tecnológico de Móstoles)

  • Víctor A. Peña O’Shea

    (IMDEA Energy, Parque Tecnológico de Móstoles)

  • Juan Cabanillas-González

    (IMDEA Nanociencia)

  • Andreas Mavrandonakis

    (IMDEA Energy, Parque Tecnológico de Móstoles)

  • Ana E. Platero-Prats

    (Universidad Autónoma de Madrid
    Universidad Autónoma de Madrid
    Universidad Autónoma de Madrid)

Abstract

Luminescent metal-organic frameworks are an emerging class of optical sensors, able to capture and detect toxic gases. Herein, we report the incorporation of synergistic binding sites in MOF-808 through post-synthetic modification with copper for optical sensing of NO2 at remarkably low concentrations. Computational modelling and advanced synchrotron characterization tools are applied to elucidate the atomic structure of the copper sites. The excellent performance of Cu-MOF-808 is explained by the synergistic effect between the hydroxo/aquo-terminated Zr6O8 clusters and the copper-hydroxo single sites, where NO2 is adsorbed through combined dispersive- and metal-bonding interactions.

Suggested Citation

  • Isabel Castillo-Velilla & Ahmad Sousaraei & Ignacio Romero-Muñiz & Celia Castillo-Blas & Alba S. J. Méndez & Freddy E. Oropeza & Víctor A. Peña O’Shea & Juan Cabanillas-González & Andreas Mavrandonaki, 2023. "Synergistic binding sites in a metal-organic framework for the optical sensing of nitrogen dioxide," Nature Communications, Nature, vol. 14(1), pages 1-10, December.
    • Handle: RePEc:nat:natcom:v:14:y:2023:i:1:d:10.1038_s41467-023-38170-9
    DOI: 10.1038/s41467-023-38170-9
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