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Nanoporous WO3–Fe2O3films; structural and photo-electrochemical characterization

Authors :
Solarska, Renata
Bieńkowski, Krzysztof
Królikowska, Agata
Dolata, Mirosław
Augustyński, Jan
Source :
Functional Materials Letters (FML); December 2014, Vol. 7 Issue: 6
Publication Year :
2014

Abstract

We investigated the structure and photo-electrochemical properties for water splitting of tungsten trioxide-ferric oxide thin films formed by spray pyrolysis. While annealing at 600°C produces films consisting of a mixture of monoclinic WO3and hematite α-Fe2O3, the heating at a temperature above 1000°C affords formation of ferric tungstate Fe2WO6. Both kinds of films exhibit optical absorption range comparable or exceeding that of α-Fe2O3. Another important feature is a decreased rate of charge recombination of the mixed-oxide Fe2O3-WO3with respect to the ferric oxide photo-anodes.

Details

Language :
English
ISSN :
17936047 and 17937213
Volume :
7
Issue :
6
Database :
Supplemental Index
Journal :
Functional Materials Letters (FML)
Publication Type :
Periodical
Accession number :
ejs34457732
Full Text :
https://doi.org/10.1142/S1793604714400062