Photoelectrochemical water splitting at titanium dioxide nanotubes coated with tungsten trioxide

The photocatalytic splitting of water into hydrogen and oxygen using solar light is a potentially clean and renewable source for hydrogen fuel. Titanium oxide nanotubes coated with tungsten oxide were prepared to harvest more solar light for the first time and characterized their water splitting efficiency. The tungsten trioxide coatings significantly enhanced the visible spectrum absorption of the titanium dioxide nanotube array, as well as their solar-spectrum induced photocurrents. For the sample, upon white light illumination at 150 mW/cm(2), hydrogen gas generated at the overall conversion efficiency of 0.87%.
Publisher
AMER INST PHYSICS
Issue Date
2006-10
Language
ENG
Keywords

FILMS; WO3; PHOTOELECTROLYSIS; ELECTRODES; OXIDATION; CHEMISTRY; ARRAYS

Citation

APPLIED PHYSICS LETTERS, v.89, no.16, pp.928 - 936

ISSN
0003-6951
DOI
10.1063/1.2357878
URI
http://hdl.handle.net/10203/4332
Appears in Collection
CBE-Journal Papers(저널논문)
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