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Issue 7, 2011
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A visible light water-splitting cell with a photoanode formed by codeposition of a high-potential porphyrin and an iridium water-oxidation catalyst

Gary F. Moore,a  James D. Blakemore,a  Rebecca L. Milot,a  Jonathan F. Hull,a  Hee-eun Song,a  Lawrence Cai,a  Charles A. Schmuttenmaer,*a  Robert H. Crabtree*a  and  Gary W. Brudvig*a 
Author affiliations

* Corresponding authors

a Department of Chemistry, Yale University, P.O. Box 208107, New Haven, USA
E-mail: g.moore@yale.edu, charles.schmuttenmaer@yale.edu, robert.crabtree@yale.edu, gary.brudvig@yale.edu

Abstract

A high-potential porphyrin is codeposited on TiO2 nanoparticles together with our Cp*–iridium water-oxidation catalyst to give a photoanode for a water-splitting cell. The photoanode optically resembles the porphyrin yet electrochemically responds like the Ir catalyst when it is immersed in aqueous solutions. Photoelectrochemical data show that illumination of the codeposited anode in water results in a marked enhancement and stability of the photocurrent, providing evidence for light-induced activation of the catalyst.

Graphical abstract: A visible light water-splitting cell with a photoanode formed by codeposition of a high-potential porphyrin and an iridium water-oxidation catalyst

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Publication details

The article was received on 13 Jan 2011, accepted on 15 Apr 2011 and first published on 11 May 2011


Article type: Communication
DOI: 10.1039/C1EE01037A
Citation: Energy Environ. Sci., 2011,4, 2389-2392
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    A visible light water-splitting cell with a photoanode formed by codeposition of a high-potential porphyrin and an iridium water-oxidation catalyst

    G. F. Moore, J. D. Blakemore, R. L. Milot, J. F. Hull, H. Song, L. Cai, C. A. Schmuttenmaer, R. H. Crabtree and G. W. Brudvig, Energy Environ. Sci., 2011, 4, 2389
    DOI: 10.1039/C1EE01037A

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