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Anodic deposition of a robust iridium-based water-oxidation catalyst from organometallic precursors
Blakemore, James D. Schley, Nathan D. Olack, Gerard W. Incarvito, Christopher D. Brudvig, Gary W. Crabtree, Robert H.
Blakemore, James D.
Schley, Nathan D.
Olack, Gerard W.
Incarvito, Christopher D.
Brudvig, Gary W.
Crabtree, Robert H.
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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.
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2011
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Royal Society of Chemistry
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Blakemore_2011.pdf
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Blakemore, J. D., Schley, N. D., Olack, G. W., Incarvito, C. D., Brudvig, G. W., & Crabtree, R. H. (2011). Anodic deposition of a robust iridium-based water-oxidation catalyst from organometallic precursors. Chemical Science, 2(1), 94-98.