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Issue 1, 2011
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Anodic deposition of a robust iridium-based water-oxidation catalyst from organometallic precursors

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Abstract

Artificial photosynthesis, modeled on natural light-driven oxidation of water in Photosystem II, holds promise as a sustainable source of reducing equivalents for producing fuels. Few robust water-oxidation catalysts capable of mediating this difficult four-electron, four-proton reaction have yet been described. We report a new method for generating an amorphous electrodeposited material, principally consisting of iridium and oxygen, which is a robust and long-lived catalyst for water oxidation, when driven electrochemically. The catalyst material is generated by a simple anodic deposition from Cp*Ir aqua or hydroxo complexes in aqueous solution. This work suggests that organometallic precursors may be useful in electrodeposition of inorganic heterogeneous catalysts.

Graphical abstract: Anodic deposition of a robust iridium-based water-oxidation catalyst from organometallic precursors

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Publication details

The article was received on 07 Aug 2010, accepted on 12 Sep 2010 and first published on 28 Oct 2010


Article type: Edge Article
DOI: 10.1039/C0SC00418A
Citation: Chem. Sci., 2011,2, 94-98
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    Anodic deposition of a robust iridium-based water-oxidation catalyst from organometallic precursors

    J. D. Blakemore, N. D. Schley, G. W. Olack, C. D. Incarvito, G. W. Brudvig and R. H. Crabtree, Chem. Sci., 2011, 2, 94
    DOI: 10.1039/C0SC00418A

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