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A journal linking all aspects of the chemical, physical and biotechnological sciences relating to energy conversion and storage, alternative fuel technologies and environmental science.
Organic and Nanostructured Electronics Laboratory, Department of Electrical Engineering and Computer Science, 13-3138, Massachusetts Institute of Technology, Cambridge, USA
E-mail: bulovic@mit.edu
; Tel: +1 617 253 7012
b
Department of Chemistry, 6-335, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, USA
E-mail: nocera@mit.edu
; Tel: +1 617 253 5537
Energy Environ. Sci., 2011,4, 2058-2061
DOI:
10.1039/C1EE01209F
Received
23 Feb 2011,
Accepted
11 Apr 2011
First published online
12 May 2011
This article is part of themed collection:
Solar energy
Integrating chemical catalysts for water splitting with photoanode materials is a longstanding challenge in demonstrating light-assisted wateroxidation, a process which can be used for the generation of solar fuels. In this work we use a silicon photoanode as a substrate for processing cobalt metal films to form a cobalt-based wateroxidationcatalyst (Co–Pi) integrated with the silicon photoanode. The Co–Pi coated photoanodes show catalytic onset at 0.85 V under illumination, which is better than silicon photoanodes coated with ITO and solution-deposited Co–Pi (catalytic onset at 1.05 V) and significantly better photoanodes with only ITO contacts (catalytic activity onset at 1.6 V).
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Energy & Environmental Science
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