Device Comprising a New Cathode and Method for Generating Electrical Energy with Use Thereof
First Claim
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1. Device comprising:
- a number of anode compartments provided with an anode, placed in an anode fluidum comprising reagents for an oxidation reaction;
a number of cathode compartments separated from the anode compartments, provided with a cathode, placed in a cathode fluidum comprising a terminal electron acceptor, a redox mediator, suitable for transferring electrons from the cathode to the terminal electron acceptor, and a catalyst, catalyzing the electron transfer from the redox mediator to the terminal electron acceptor;
the redox mediator comprising the Pe (II)/Fe (III) redox couple and the catalyst comprising Fe(II) oxidizing catalyst.
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Abstract
A first embodiment is disclosed, relating to a device including an anode and a cathode. The anode and cathode are placed in a separate anode and cathode compartment. In at least one embodiment of the device, electron transfer takes place from the cathode to a terminal electron acceptor via a redox mediator. In at least one embodiment, the redox mediator includes the Fe (II)/Fe (III) redox couple. According to a further aspect, of at least one embodiment of the invention, relates to a method for generating electric energy with use of the device according to at least one embodiment of the invention.
8 Citations
32 Claims
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1. Device comprising:
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a number of anode compartments provided with an anode, placed in an anode fluidum comprising reagents for an oxidation reaction; a number of cathode compartments separated from the anode compartments, provided with a cathode, placed in a cathode fluidum comprising a terminal electron acceptor, a redox mediator, suitable for transferring electrons from the cathode to the terminal electron acceptor, and a catalyst, catalyzing the electron transfer from the redox mediator to the terminal electron acceptor;
the redox mediator comprising the Pe (II)/Fe (III) redox couple and the catalyst comprising Fe(II) oxidizing catalyst. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
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15. Method for generating electric energy comprising:
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providing a device including a number of anode compartments provided with an anode, placed in an anode fluidum comprising reagents for an oxidation reaction and a number of cathode compartments separated from the anode compartments, provided with a cathode, placed in a cathode fluidum comprising a terminal electron acceptor, a redox mediator, suitable for transferring electrons from the cathode to the terminal electron acceptor, and a catalyst, catalyzing the electron transfer from the redox mediator to the terminal electron acceptor;
the redox mediator comprising the Pe (II)/Fe (III) redox couple and the catalyst comprising Fe(II) oxidizing catalyst;electrically connecting the anode and the cathode; at least one of forming and maintaining anaerobic conditions in the anode compartment; performing an anaerobic oxidation reaction; and reducing Fe(III) to Fe(II) at the cathode and oxidizing Fe(II) while reducing a terminal electron acceptor. - View Dependent Claims (16, 17, 18, 19, 31, 32)
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Specification