A Tandem Solar Biofuel Cell: Harnessing Energy from Light and Biofuels
Autor: | Marc Riedel, Soraya Höfs, Adrian Ruff, Wolfgang Schuhmann, Fred Lisdat |
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Rok vydání: | 2020 |
Předmět: |
energy harvesting
Materials science biocatalysis Photobioelectrochemistry Photoelectrochemistry Nanotechnology 010402 general chemistry 01 natural sciences Redox Catalysis photoelectrochemistry law.invention law Glucose dehydrogenase Tandem 010405 organic chemistry Open-circuit voltage Communication biofuel cells General Medicine General Chemistry Communications Cathode 0104 chemical sciences Electricity generation Biofuel ddc:660 photocatalysis |
Zdroj: | Angewandte Chemie International Edition, 60, 4, S. 2078-2083 Angewandte Chemie (International Ed. in English) |
ISSN: | 1521-3773 1433-7851 |
Popis: | We report on a photobioelectrochemical fuel cell consisting of a glucose‐oxidase‐modified BiFeO3 photobiocathode and a quantum‐dot‐sensitized inverse opal TiO2 photobioanode linked to FAD glucose dehydrogenase via a redox polymer. Both photobioelectrodes are driven by enzymatic glucose conversion. Whereas the photobioanode can collect electrons from sugar oxidation at rather low potential, the photobiocathode shows reduction currents at rather high potential. The electrodes can be arranged in a sandwich‐like manner due to the semi‐transparent nature of BiFeO3, which also guarantees a simultaneous excitation of the photobioanode when illuminated via the cathode side. This tandem cell can generate electricity under illumination and in the presence of glucose and provides an exceptionally high OCV of about 1 V. The developed semi‐artificial system has significant implications for the integration of biocatalysts in photoactive entities for bioenergetic purposes, and it opens up a new path toward generation of electricity from sunlight and (bio)fuels. A photobioelectrochemical tandem cell is presented in which two photoelectrodes have been functionally coupled with two biocatalysts for supplying the light‐driven reaction with charge carriers from glucose conversion. The cell allows the generation of electricity from biofuels and light with a high open‐circuit voltage of 1 V. |
Databáze: | OpenAIRE |
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