# US 9,433,928 B2 · Electrocatalytic materials and methods for manufacturing same

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- Number: US 9,433,928 B2
- Document ID: US9433928B2
- Status: Granted
- Kind: B2
- Application number: 14/342,610
- Filed: 2012-09-04
- Published: 2014-07-31
- Granted: 2016-09-06
- Earliest claimed: 2011-09-01
- Assignees: Click Materials Corp.
- Applicants: Simon Trudel; Curtis Berlinguette
- Inventors: Simon Trudel; Curtis Berlinguette
- Web page: https://patentgrep.com/patent/US9433928B2

## CPC

- C25B 1/55: Photoelectrolysis
- B01J 23/745: Iron
- B01J 23/75: Cobalt
- B01J 23/755: Nickel
- C01B 13/18: by thermal decomposition of compounds, e.g. of salts or hydroxides
- C01B 13/185: {Preparing mixtures of oxides}
- C01G 49/0018: {Mixed oxides or hydroxides, (C01G49/0009 takes precedence)}
- C01G 49/0045: {containing aluminium}
- C01G 49/0054: {containing one rare earth metal, yttrium or scandium}
- C01G 49/0072: {containing manganese}
- C01G 49/06: Ferric oxide [Fe2O3]
- C01G 51/40: Complex oxides containing cobalt and at least one other metal element
- C01G 53/40: Complex oxides containing nickel and at least one other metal element
- C01G 55/002: {Compounds containing ruthenium, rhodium, palladium, osmium, iridium or platinum, with or without oxygen or hydrogen, and containing two or more other elements (C01G55/007 takes precedence)}
- C25B 1/04: by electrolysis of water
- C25B 11/04: characterised by the material
- C25B 11/051: Electrodes formed of electrocatalysts on a substrate or carrier
- C25B 11/077: the compound being a non-noble metal oxide
- C25B 11/093: at least one noble metal or noble metal oxide and at least one non-noble metal oxide
- H01M 4/9016: {Oxides, hydroxides or oxygenated metallic salts}
- Y02E 60/36: Hydrogen production from non-carbon containing sources, e.g. by water electrolysis
- Y02E 60/50: Fuel cells
- Y02P 20/133: Renewable energy sources, e.g. sunlight
- C25B: ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR (anodic or cathodic protection C23F13/00; single-crystal growth C30B)
- B01J: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- C01B: NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; {METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C}
- C01G: COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F (metal hydrides {monoborane, diborane or addition complexes thereof} C01B6/00; salts of oxyacids of halogens C01B11/00; peroxides, salts or peroxyacids C01B15/00; thiosulfates, dithionites, polythionates C01B17/64; compounds containing selenium, or tellurium C01B19/00; binary compounds of nitrogen with metals C01B21/06; azides C01B21/08; {compounds containing nitrogen, other non-metals and metal C01B21/082}; metal amides C01B21/092; nitrites C01B21/50; {compounds of noble gases C01B23/0005}; phosphides C01B25/08; salts of oxyacids of phosphorus C01B25/16; carbides C01B32/90; compounds containing silicon C01B33/00; compounds containing boron C01B35/00; compounds having molecular sieve properties but not having base-exchange properties C01B37/00; compounds having molecular sieve and base-exchange properties, e.g. crystalline zeolites, C01B39/00; cyanides C01C3/08; salts of cyanamide C01C3/16; thiocyanates C01C3/20)
- H01M: PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02P: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS

## Abstract

The present invention provides an electrocatalytic material and a method for making an electrocatalytic material. There is also provided an electrocatalytic material comprising amorphous metal or mixed metal oxides. There is also provided methods of forming an electrocatalyst, comprising an amorphous metal oxide film.

## Claims

### Claim 1

An electrocatalytic material comprising an amorphous metal oxide film, wherein said metal oxide is a single metal oxide selected from oxides of iron, cobalt, nickel, ruthenium, platinum, palladium, molybdenum, osmium, manganese, chromium, rhodium, and iridium, or said metal oxide is a mixed metal oxide comprising two or more metals, at least one of which is selected from iron, cobalt, nickel, ruthenium, platinum, palladium, molybdenum, osmium, manganese, chromium, rhodium, and iridium.

### Claim 2 (depends on 1)

The electrocatalytic material of claim 1, wherein the amorphous metal oxide film comprises a metal oxide selected from the group consisting of iron oxide, ruthenium oxide, cobalt oxide, nickel oxide, iridium oxide and mixtures thereof.

### Claim 3 (depends on 1)

The electrocatalytic material of claim 1, wherein the amorphous metal oxide film comprises a binary metal oxide system, wherein the binary metal oxide system is selected from the group consisting of iron/cobalt, iron/nickel, cobalt/nickel, cobalt/aluminum, nickel/aluminum, iron/aluminum, iron/cerium, iron/molybdenum, iron/copper, iron/iridium, iron/manganese, iron/tin, and iron/niobium.

### Claim 4 (depends on 1)

The electrocatalytic material of claim 1, wherein the amorphous metal oxide film comprises a ternary metal oxide system, wherein the ternary metal oxide system is selected from the group consisting of iron/cobalt/nickel, iron/aluminum/nickel, aluminum/cobalt/nickel, and aluminum/cobalt/iron.

### Claim 5 (depends on 1)

The electrocatalytic material of claim 1, wherein the amorphous metal oxide film comprises a doped metal oxide selected from the group consisting of iridium doped iron oxide, niobium doped iron oxide and molybdenum doped iron oxide.

### Claim 6 (depends on 1)

A system for electro catalysis comprising an electrocatalytic material as defined in claim 1.