A Fluorescence-Based Screening Protocol for the Identification of Water Oxidation Catalysts

Authors

  • Dr. Remko J. Detz,

    1. Van‘t Hoff Institute for Molecular Sciences, University of Amsterdam, Science Park 904, 1098 XH Amsterdam (The Netherlands)
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  • Zohar Abiri,

    1. Van‘t Hoff Institute for Molecular Sciences, University of Amsterdam, Science Park 904, 1098 XH Amsterdam (The Netherlands)
    2. InCatT B.V., Science Park 904, 1098 XH Amsterdam (The Netherlands)
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  • Dr. Alexander M. Kluwer,

    1. InCatT B.V., Science Park 904, 1098 XH Amsterdam (The Netherlands)
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  • Prof. Dr. Joost N. H. Reek

    Corresponding author
    1. Van‘t Hoff Institute for Molecular Sciences, University of Amsterdam, Science Park 904, 1098 XH Amsterdam (The Netherlands)
    • Van‘t Hoff Institute for Molecular Sciences, University of Amsterdam, Science Park 904, 1098 XH Amsterdam (The Netherlands)

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Abstract

Efficient catalysts are crucial for the sustainable generation of fuel by splitting water. A versatile screening protocol would simplify the identification of novel and better catalysts by using high throughput experimentation. Herein, such a screening approach for the identification of molecular catalysts for chemical oxidation of water is reported, which is based on oxygen-sensitive fluorescence quenching using an OxoDish. More than 200 reactions were performed revealing several catalysts, for example, a dinuclear Fe complex that produced oxygen under the used reaction conditions. Clark electrode measurements confirmed a similar rate in oxygen evolution, making the developed parallel screening approach a robust and versatile tool to screen for molecular water oxidation catalysts using chemical oxidants under acidic and neutral conditions.

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