Heme protein immobilized electrode and its use
First Claim
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1. An electrode comprising a solid electrical conducting material on the surface of which cytochrome c3 is immobilized in an amount ranging between 20% and 100% of monolayer coverage.
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Abstract
An electrical conducting solid electrode on the surface of which cytochrome c3 is immobilized in an amount ranging from 20%-100% of the monolayer coverage, said electrode thereby provided with the electrocatalytic capability of the direct four-electron reduction of dioxygen to water, and its uses.
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Citations
17 Claims
- 1. An electrode comprising a solid electrical conducting material on the surface of which cytochrome c3 is immobilized in an amount ranging between 20% and 100% of monolayer coverage.
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2. A method of catalytic four-electron reduction of dioxygen directly to water in an aqueous solution which comprises placing an oxygen electrode comprising a solid electrical conducting material on the surface of which cytochrome c3 is immobilized in an amount ranging between 20% and 100% of monolayer coverage into a first aqueous electrolyte solution at a pH of from about 4 to 10, placing a second electrode into a second aqueous electrolyte solution, said second electrolyte solution and second electrode being in communication with said first electrolyte solution and said first electrode in a manner to complete an electrical circuit, and
applying an electrical current to said circuit sufficient to cause reduction of oxygen to water at the first electrode.
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10. An electrode comprising a solid electrical conducting material on the surface of which cytochrome C3 is immobilized in an amount ranging from about 20%-100% of monolayer coverage which is prepared by soaking said electrode in a solution comprising cytochrome C3 in a concentration of from about 10-5 M to 10-3 M.
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11. An electrode comprising a solid electrical conducting material on the surface of which cytochrome C3 is immobilized in an amount ranging from about 20%-100% of monolayer coverage which is further treated by:
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(a) soaking the electrode in a solution comprising hydrogenase, and (b) activating the hydrogenase. - View Dependent Claims (12, 13, 14)
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15. An electrode comprising a solid electrical conducting material on the surface of which cytochrome C3 is immobilized in an amount ranging from about 20-100 percent of monolayer coverage which is prepared by:
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(a) soaking the electrode in a mixed solution containing cytochrome C3 and hydrogenase, and (b) activating the hydrogenase. - View Dependent Claims (16, 17)
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Specification