BIOCATHODE-PHOTOANODE DEVICE AND METHOD OF MANUFACTURE AND USE
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United States of America Patent
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Issued Date -
Sep 19, 2013
app pub date -
Apr 19, 2011
filing date -
Apr 21, 2010
priority date (Note) -
Abandoned
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Abstract
A system for harvesting electric energy from illumination by photons by photo- and bioelectrocatalysis includes an electrode coated with conducting polymer matrix containing the oxidoreductase, laccase, and a redox mediator, 2,2′-azino-bis(3-ethylbenzothiaxoline-6-sulfonic acid (ABTS). The photo-anode is based on nanocrystalline TlO2 (Degussa, P25) adhered to a fluorine tin oxide (FTO) electrode. The device operation is based on a continuous photocatalytic oxidation of water to oxygen at a TiO2-photoanode and bioelectrocatalytic reduction of oxygen to water at a biocathode under illumination with light.
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