One-step preparation of the BiVO4 film photoelectrode

A one-step method of preparing photoelectrochemically active nanostructured BiVO 4 films is reported based on thermolysis (500 °C in air) of a polyethylene glycol (PEG300) “paint-on” precursor solution containing Bi 3+ (as nitrate) and VO 4 3− (as the metavanadate ammonium salt). Films are formed di...

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Bibliographic Details
Published in:Journal of solid state electrochemistry 2015-01, Vol.19 (1), p.31-35
Main Authors: Mascaro, Lucia H., Pockett, Adam, Mitchels, John M., Peter, Laurence M., Cameron, Petra J., Celorrio, Veronica, Fermin, David J., Sagu, Jagdeep S., Wijayantha, K. G. Upul, Kociok-Köhn, Gabriele, Marken, Frank
Format: Article
Language:English
Subjects:
Analytical Chemistry
Characterization and Evaluation of Materials
Chemistry
Chemistry and Materials Science
Condensed Matter Physics
Electrochemistry
Energy Storage
Original Paper
Physical Chemistry
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Summary:A one-step method of preparing photoelectrochemically active nanostructured BiVO 4 films is reported based on thermolysis (500 °C in air) of a polyethylene glycol (PEG300) “paint-on” precursor solution containing Bi 3+ (as nitrate) and VO 4 3− (as the metavanadate ammonium salt). Films are formed directly on tin-doped indium oxide (ITO) substrates and characterised by electron microscopy (scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDS)), X-ray diffraction, Raman spectroscopy, and photoelectrochemistry. The nanocrystalline film exhibited typically up to 52 % incident photon to current efficiency (IPCE) at 1.0 V vs. saturated calomel electrode (SCE) in aqueous 0.5 M Na 2 SO 4 with oxalate, strongly enhancing photocurrents. Figure Coloured FE-SEM image
ISSN:1432-8488
1433-0768
DOI:10.1007/s10008-014-2495-y