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Photoelectrolysis of water at high current density - Use of laser light excitation of semiconductor-based photoelectrochemical cellsIn the present paper, some results are given for UV laser light irradiation of the photoanode (SnO2, SrTiO3, or TiO2) in a cell for the light-driven electrolysis of H2O, at radiation intensities of up to 380 W/sq cm. The properties of the anode material are found to be independent of light intensity. Conversion of UV light to stored chemical energy in the form of 2H2/O2 from H2O was driven at a rate of up to 30 W/sq cm. High O2 evolution rates at the irradiated anodes without changes in the current-voltage curves are attributed to the excess oxidizing power associated with photogenerated holes. A test for this sort of hypothesis for H2 evolution at p-type materials is proposed.
Document ID
19790032627
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Wrighton, M. S.
(Massachusetts Inst. of Tech. Cambridge, MA, United States)
Bocarsley, A. B.
(Massachusetts Inst. of Tech. Cambridge, MA, United States)
Bolts, J. M.
(MIT Cambridge, Mass., United States)
Date Acquired
August 9, 2013
Publication Date
January 1, 1978
Subject Category
Inorganic And Physical Chemistry
Meeting Information
Meeting: Radiation energy conversion in space; Conference
Location: Moffett Field, CA
Start Date: January 26, 1978
End Date: January 28, 1978
Accession Number
79A16640
Funding Number(s)
CONTRACT_GRANT: NSG-1048
Distribution Limits
Public
Copyright
Other

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