Anode for oxygen generation and manufacturing method for the same
US-2016244888-A1 · Aug 25, 2016 · US
Anode for alkaline water electrolysis and method for producing anode for alkaline water electrolysis
US10619255B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10619255-B2 |
| Application number | US-201716084851-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 5, 2017 |
| Priority date | Apr 12, 2016 |
| Publication date | Apr 14, 2020 |
| Grant date | Apr 14, 2020 |
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- Title
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Abstract
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Provided are an anode for alkaline water electrolysis that can achieve a low overpotential at low cost, and a method for producing the anode for alkaline water electrolysis. An anode for alkaline water electrolysis having electrode catalyst layers 2, 3 composed of a first catalyst component having either a nickel-cobalt spinel oxide or a lanthanide-nickel-cobalt perovskite oxide and a second catalyst component having at least one of iridium oxide and ruthenium oxide formed on the surface of a conductive substrate 1 composed of nickel or a nickel-based alloy, and a method for producing the anode for alkaline water electrolysis.
First claim
Opening claim text (preview).
The invention claimed is: 1. An anode for alkaline water electrolysis comprising: a conductive substrate having at least a surface that comprises nickel or a nickel-based alloy; and an electrode catalyst layer formed on the surface of the conductive substrate, wherein the electrode catalyst layer has a layered structure comprising a first catalyst layer and a second catalyst layer, wherein the first catalyst layer comprises: a first catalyst component comprising a lanthanide-nickel-cobalt perovskite oxide represented by a structural formula XNi a Co 1-a O 3 , wherein X represents at least one lanthanide selected from the group consisting of lanthanum, cerium, and praseodymium, and a satisfies 0<a<1, and the second catalyst layer comprises: a second catalyst component comprising at least one material selected from the group consisting of iridium oxide and ruthenium oxide, and the first catalyst layer is formed on the surface of the conductive substrate, and the second catalyst layer is formed on a surface of the first catalyst layer. 2. The anode for alkaline water electrolysis according to claim 1 , wherein the structural formula of the lanthanide-nickel-cobalt perovskite oxide is XNi 0.2 Co 0.8 O 3 . 3. The anode for alkaline water electrolysis according to claim 1 , wherein the lanthanide is lanthanum, and the lanthanide-nickel-cobalt perovskite oxide is a lanthanum-nickel-cobalt perovskite oxide. 4. The anode for alkaline water electrolysis according to claim 1 , wherein an amount of the second catalyst component, calculated as an amount of a component metal, is in a range of at least 0.2 g/m 2 .
Assignees
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Classifications
Renewable energy sources, e.g. sunlight · CPC title
Iridium · CPC title
pyrochlore-type (A2B2O7) · CPC title
Ruthenium · CPC title
Cobalt · CPC title
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- What does patent US10619255B2 cover?
- Provided are an anode for alkaline water electrolysis that can achieve a low overpotential at low cost, and a method for producing the anode for alkaline water electrolysis. An anode for alkaline water electrolysis having electrode catalyst layers 2, 3 composed of a first catalyst component having either a nickel-cobalt spinel oxide or a lanthanide-nickel-cobalt perovskite oxide and a second …
- Who is the assignee on this patent?
- De Nora Permelec Ltd, Kawasaki Heavy Ind Ltd
- What technology area does this patent fall under?
- Primary CPC classification C25B1/04. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Apr 14 2020 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 2 related publications on this page (citations in our corpus or others sharing the same primary CPC).