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US 11,196,074 B2Granted
Reversible bio sensitized photoelectric conversion and H2 to electricity devices
OwnerCristina Oliva Solà, Miquel Jove Peraltainventors
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Abstract
The invention provides reversible bio sensitized photoelectric conversion and H2 to electricity conversion devices which use one or more of a proton pumping photoactive biological layers to generate a proton gradient that is harnessed to produce electrical energy. It is also provided a photoelectric conversion element that incorporates the device of the present invention.
Claims15
A reversible bio sensitized photoelectric conversion and H2 to electricity conversion device comprising a first compartment (A) and a second compartment (B);
- the first compartment (A) comprises a first photoanode electrode (A1) and a second electrode (A2) with a water-containing medium (4) therebetween;
- wherein a polymeric membrane (C) is disposed between the first compartment (A) and the second compartment (B);
- the second compartment (B) comprises a third electrode (B1), and a hydrogen collecting deposit (B2);
- wherein
- the first compartment (A), extending from its front end surface to its opposing back end surface, comprises:
- i.1 the first photoanode electrode (A1) which comprises:
- i.1.1 a layer of a visible or UV and visible radiation transparent conductor material (1);
- i.1.2 a first conductive metallic material (2);
- and
- i.1.3 optionally, one or more of a proton pumping photoactive biological layers (3) comprising oriented purple membrane containing bacteriorhodopsin protein or any of its genetic variants;
- stabilized bacteriorhodopsin protein-based sensitizer or any of its genetic variants;
- or mixtures thereof;
- the one or more proton pumping photoactive biological layers (3) being deposited on the first conductive metallic material (2);
- i.2 the water-containing medium (4);
- i.3 the second electrode (A2) which comprises:
- i.3.1 optionally, one or more of a proton pumping photoactive biological layers (5) comprising oriented purple membrane containing bacteriorhodopsin protein or any of its genetic variants;
- stabilized bacteriorhodopsin protein-based sensitizer or any of its genetic variants;
- or mixtures thereof;
- and
- i.3.2 a second conductive metallic material (6);
- the one or more proton pumping photoactive biological layers (5) being deposited on the second conductive metallic material (6);
- and
- i.3.3 a layer of a visible or UV and visible radiation transparent conductor material (7);
- with the proviso that at least one of the proton pumping photoactive biological layers (3) or (5) is present.
21 more elements
Dependencies are inferred from the claim text.