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Properties of Carbon-doped TiO2 (Anatase) Photo-Electrodes

Published online by Cambridge University Press:  01 February 2011

Cristina S. Enache ,
Joop Schoonman  and
Roel van de Krol
Cristina S. Enache
Affiliation:
c.s.enache@tnw.tudelft.nl, Delft University of Technology, Julianalaan 136, Delft, ZH, 2628BL, Netherlands, +31-152782676, +31-152788047
Joop Schoonman
Affiliation:
j.schoonman@tnw.tudelft.nl, Delft University of Technology, Delft Institute for Sustainable Energy, Netherlands
Roel van de Krol
Affiliation:
R.vandeKrol@tnw.tudelft.nl, Delft University of Technology, Delft Institute for Sustainable Energy, Netherlands
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Abstract

To enhance the visible light absorption of anatase TiO2 photo-electrodes, the material was doped with carbon by two different methods: i) by spray pyrolysis under a CO2 atmosphere, and ii) by a post-deposition thermal treatment in a hexane-containing environment. For the hexane-treated samples, most of the carbon is located at the surface, from which it can be removed by re-oxidation at elevated temperatures. In addition, both methods seem to result in the presence of small amounts of carbon in the bulk of the material, as deduced from a small red-shift of the absorption edge of TiO2.

Keywords

energetic materialoptical propertiesspray pyrolysis
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 885: Symposium A – The Hydrogen Cycle – Generation, Storage and Fuel Cells , 2005 , 0885-A10-11
Copyright
Copyright © Materials Research Society 2006

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References

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