Catalytic materials, photoanodes, and photoelectrochemical cells for water electrolysis and other electrochemical techniques
AssigneesMassachusetts Institute of Technology, Sun Catalytix Corporation
InventorsDaniel G. Nocera, Matthew W. Kanan, Yogesh Surendranath, Steven Y. Reece, Arthur J. Esswein
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Abstract
Catalytic materials, photoanodes, and systems for electrolysis and/or formation of water are provided which can be used for energy storage, particularly in the area of solar energy conversion, and/or production of oxygen and/or hydrogen. Compositions and methods for forming photoanodes and other devices are also provided.
Claims34
A method for forming a photoanode for the catalytic production of oxygen from water, comprising:
- providing a solution comprising metal ionic species and anionic species;
- providing a photoactive electrode;
- and
- causing the metal ionic species and the anionic species to form a catalytic material associated with the photoactive electrode by application of a voltage to the photoactive electrode.
A method for producing oxygen from water, comprising the steps of:
- providing a photoelectrochemical cell comprising:
- a photoactive electrode;
- an electrolyte;
- and
- a catalytic material integrally connected to the photoactive electrode the catalytic material comprising metal ionic species and anionic species, and wherein the catalytic material does not consist essentially of a metal oxide or metal hydroxide;
- and
- illuminating the photoelectrochemical cell with light to thereby produce oxygen from water.
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A photoanode for the catalytic production of oxygen from water, comprising:
- a photoactive electrode;
- and
- a catalytic material comprising metal ionic species and anionic species, wherein the catalytic material is formed by application of a voltage to a photoactive electrode.
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Dependencies are inferred from the claim text.