Fuel cell, using oxidoreductase type enzymes in the cathodic compartment and possibly in the anodic compartment
First Claim
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1. Proton exchange membrane fuel cell comprising:
- a cathodic compartment comprising a cathode, an oxidant consisting of oxygen and at least one enzyme catalyst;
an anodic compartment comprising an anode, a fuel and at least one catalyst, said anodic and cathodic compartments being arranged at either end of said membrane, said cell being characterized in that said enzyme catalyst of the cathodic compartment is an oxidoreductase enzyme selected from the group consisting of galactose oxidase, pyruvate oxidase, glutamate oxidase, and alcohol oxidases, said enzyme being capable of catalyzing the oxidation of suitable substrate and the reduction of oxygen into hydrogen peroxide, said hydrogen peroxide fulfilling the role of direct acceptor of the electrons from the cathode.
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Abstract
A proton exchange membrane fuel cell comprises an cathodic compartment including a cathode, an oxidant consisting of oxygen and at least one enzyme catalyst, an anodic compartment comprising an anode, a fuel and at least one catalyst. The anodic and cathodic compartments are arranged at either end of the membrane. The cell is characterized in that the enzyme catalyst of the anodic compartment is an oxidoreductase type enzyme capable of catalyzing the reduction of oxygen into hydrogen peroxide and the hydrogen peroxide is a direct receptor of the electrons from the cathode.
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Citations
14 Claims
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1. Proton exchange membrane fuel cell comprising:
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a cathodic compartment comprising a cathode, an oxidant consisting of oxygen and at least one enzyme catalyst; an anodic compartment comprising an anode, a fuel and at least one catalyst, said anodic and cathodic compartments being arranged at either end of said membrane, said cell being characterized in that said enzyme catalyst of the cathodic compartment is an oxidoreductase enzyme selected from the group consisting of galactose oxidase, pyruvate oxidase, glutamate oxidase, and alcohol oxidases, said enzyme being capable of catalyzing the oxidation of suitable substrate and the reduction of oxygen into hydrogen peroxide, said hydrogen peroxide fulfilling the role of direct acceptor of the electrons from the cathode. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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Specification