Molecular Mechanism of Water Oxidation Reaction at Photo-Irradiated TiO2 and Related Metal Oxide Surfaces

Abstract:

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Recent studies on the molecular mechanism of water photooxidation (or oxygen photoevolution) reaction on TiO2 and related metal oxides or oxynitrides are reviewed. It is shown that a lot of experimental and theoretical studies give definite support to our recently proposed new mechanism, called “nucleophilic attack of H2O” or “Lewis acid-base” mechanism. The new mechanism has the prominent features that it possesses energetic and kinetics different from the conventional electron-transfer mechanism and can explain water photooxidation reaction on visible-light responsive metal oxides or oxynitrides, contrary to the conventional one. The result indicates that the new mechanism is useful for searching for new efficient visible-light responsive materials for solar water splitting.

Info:

Periodical:

Solid State Phenomena (Volume 162)

Edited by:

Maria K. Nowotny and Janusz Nowotny

Pages:

1-27

DOI:

10.4028/www.scientific.net/SSP.162.1

Citation:

R. Nakamura and Y. Nakato, "Molecular Mechanism of Water Oxidation Reaction at Photo-Irradiated TiO2 and Related Metal Oxide Surfaces ", Solid State Phenomena, Vol. 162, pp. 1-27, 2010

Online since:

June 2010

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Price:

$35.00

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