A Tandem Solar Biofuel Cell: Harnessing Energy from Light and Biofuels.

ABSTRACT: 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

SUBMITTER: Riedel M 

PROVIDER: S-EPMC7894536 | biostudies-literature | 2021 Jan

REPOSITORIES: biostudies-literature