Selective Reduction of Aqueous Protons to Hydrogen with a Synthetic Cobaloxime Catalyst in the Presence of Atmospheric Oxygen

Authors

  • Fezile Lakadamyali,

    1. Christian Doppler Laboratory for Sustainable SynGas Chemistry, Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW (UK)
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    • These authors contributed equally to this work and should be considered as first authors.

  • Dr. Masaru Kato,

    1. Christian Doppler Laboratory for Sustainable SynGas Chemistry, Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW (UK)
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    • These authors contributed equally to this work and should be considered as first authors.

  • Dr. Nicoleta M. Muresan,

    1. Christian Doppler Laboratory for Sustainable SynGas Chemistry, Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW (UK)
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  • Dr. Erwin Reisner

    Corresponding author
    1. Christian Doppler Laboratory for Sustainable SynGas Chemistry, Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW (UK)
    • Christian Doppler Laboratory for Sustainable SynGas Chemistry, Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW (UK)
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  • This work was supported by the U.K. Engineering and Physical Sciences Research Council (EP/H00338X/2), the University of Cambridge, the Austrian Christian Doppler Research Association (Federal Ministry of Economy, Family and Youth and the National Foundation for Research, Technology and Development), and the OMV Group. Dr. Anna Reynal, Prof. James R. Durrant, and Prof. Jonas C. Peters are acknowledged for fruitful discussions.

Abstract

original image

Protons preferred: A cobalt catalyst is reported that evolves H2 electro- and photocatalytically at room temperature, in pH-neutral water, and in the presence of atmospheric O2 (see scheme). The catalyst shows respectable Faradaic efficiencies under N2 and 21 % O2 in N2, and can be used under both homogeneous and heterogeneous conditions.

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