Chloride Oxidation as an Alternative to the Oxygen-Evolution Reaction on HxWO3 Photoelectrodes

Oxidizing chloride anion to chlorine or hypochlorous acid in water shows 100% current efficiency on HxWO3 photoelectrodes. Water oxidation is less than 90% efficient in strong acid and gets worse as the solution becomes less acidic. Accordingly, oxidizing chloride leads to a stable photocurrent, ind...

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Bibliographic Details
Published in:Journal of physical chemistry. C 2021-04, Vol.125 (16)
Main Authors: Breuhaus-Alvarez, Andrew G., Cheek, Quintin, Cooper, Joshua J., Maldonado, Stephen, Bartlett, Bart M.
Format: Article
Language:English
Subjects:
Anions
Electrolytes
INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
Oxidation
Photonics
Radiology
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Summary:Oxidizing chloride anion to chlorine or hypochlorous acid in water shows 100% current efficiency on HxWO3 photoelectrodes. Water oxidation is less than 90% efficient in strong acid and gets worse as the solution becomes less acidic. Accordingly, oxidizing chloride leads to a stable photocurrent, indicating that the catalysis is sustainable for long periods without degrading the HxWO3 material.
ISSN:1932-7447
1932-7455
DOI:10.1021/acs.jpcc.0c11282