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US 11,484,865 B2Granted
Hydrogen peroxide selective catalysts, methods of using thereof, and methods of making thereof
AssigneeYale University
InventorShu Hu
Life of this patent
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Abstract
Catalysts for selective production of hydrogen peroxide and methods of making and using thereof have been developed. The catalysts include an alloyed or doped metal oxide which permits tuning of the catalytic properties of the catalysts for selection of a desired pathway to a product, such as hydrogen peroxide. The catalysts may be incorporated into electrochemical or photochemical devices.
Claims25
A layered peroxide selective catalyst comprising:
- (1) at least a first layer on a substrate wherein the at least first layer comprises at least a first metal oxide alloyed or doped with at least one metal selected from the group consisting of manganese, chromium, vanadium, cobalt, oxides thereof, and combinations thereof;
- and
- (2) at least a second layer wherein the second layer comprises at least a second metal oxide which is optionally free or substantially free of the least one metal selected from the group consisting of manganese, chromium, vanadium, cobalt, nickel, oxides thereof, and combinations thereof.
A method of forming a layered peroxide selective catalyst comprising the steps of:
- (1) depositing at least a first layer on a substrate by atomic layer deposition and/or by sputtering at a predetermined deposition temperature, wherein the at least first layer comprises at least a first metal oxide alloyed or doped with at least one metal selected from the group consisting of manganese, chromium, vanadium, cobalt, oxides thereof, and combinations thereof;
- (2) depositing at least a second layer by atomic layer deposition and/or by sputtering at a predetermined temperature on the at least first layer;
- wherein the second layer comprises at least a second metal oxide which is optionally free or substantially free of the least one metal selected from the group consisting of manganese, chromium, vanadium, cobalt, oxides thereof, and combinations thereof;
- wherein steps (1) and (2) are optionally repeated one or more times prior to annealing;
- and
- (3) annealing the resulting layered peroxide selective catalyst.
3 more elements
Dependencies are inferred from the claim text.