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; James D. Blakemore; Rebecca L. Milot; Jonathan F. Hull; Hee Eun Song; Lawrence Cai; Charles A. Schmuttenmaer; Robert H. Crabtree; Gary W. Brudvig

doi:10.1039/c1ee01037a

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, James D. Blakemore, Rebecca L. Milot, Jonathan F. Hull, Hee Eun Song, Lawrence Cai, Charles A. Schmuttenmaer, Robert H. Crabtree, Gary W. Brudvig

Research output: Contribution to journal › Article › peer-review

250 Scopus citations

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.

Original language	English (US)
Pages (from-to)	2389-2392
Number of pages	4
Journal	Energy and Environmental Science
Volume	4
Issue number	7
DOIs	https://doi.org/10.1039/c1ee01037a
State	Published - Jul 1 2011
Externally published	Yes

ASJC Scopus subject areas

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

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10.1039/c1ee01037a

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Moore, G. F., Blakemore, J. D., Milot, R. L., Hull, J. F., Song, H. E., Cai, L., Schmuttenmaer, C. A., Crabtree, R. H., & Brudvig, G. W. (2011). A visible light water-splitting cell with a photoanode formed by codeposition of a high-potential porphyrin and an iridium water-oxidation catalyst. Energy and Environmental Science, 4(7), 2389-2392. https://doi.org/10.1039/c1ee01037a

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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.",

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AU - Moore, Gary F.

AU - Blakemore, James D.

AU - Milot, Rebecca L.

AU - Hull, Jonathan F.

AU - Song, Hee Eun

AU - Cai, Lawrence

AU - Schmuttenmaer, Charles A.

AU - Crabtree, Robert H.

AU - Brudvig, Gary W.

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AB - 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.

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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

Abstract

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