Water oxidation catalysis by manganese oxides: Learning from evolution

M. Wiechen, M. M. Najafpour, S. I. Allakhverdiev, L. Spiccia

    Research output: Contribution to journalReview articlepeer-review

    124 Citations (Scopus)

    Abstract

    The Oxygen Evolving Complex (OEC) in photosystem II, a cluster that contains four manganese and one calcium ions bridged by five oxygen atoms in a distorted chair like arrangement, carries out the biological oxidation of water during photosynthesis. Since this is the only cluster established in biological water oxidation catalysis, efforts have been made to develop synthetic systems that mimic its structure, properties and water oxidation activity. This perspective provides a brief overview of the current structural and mechanistic understanding of the OEC in photosystem II. It then compares the structural features of this complex with those of manganese oxide water oxidation catalysts and discusses structure-function relationships that inform the development of new catalysts. The identified features should be considered when endeavouring to design manganese oxide, and other metal oxide, catalysts with optimal activity that can ultimately be integrated into photo-electrochemical devices to achieve solar water-splitting.

    Original languageEnglish
    Pages (from-to)2203-2212
    Number of pages10
    JournalEnergy and Environmental Science
    Volume7
    Issue number7
    DOIs
    Publication statusPublished - Jul 2014

    ASJC Scopus subject areas

    • Environmental Chemistry
    • Renewable Energy, Sustainability and the Environment
    • Nuclear Energy and Engineering
    • Pollution

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