Design of Smart-MEAs for High Power Fuel Cells
US-2018053958-A1 · Feb 22, 2018 · US
Carbon dioxide reduction device, and porous electrode
US12398474B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12398474-B2 |
| Application number | US-202318238766-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 28, 2023 |
| Priority date | Sep 27, 2017 |
| Publication date | Aug 26, 2025 |
| Grant date | Aug 26, 2025 |
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- Title
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Abstract
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A carbon dioxide reduction device of the present invention is a carbon dioxide reduction device comprising a first electrode; at least any one of an electrolyte solution and an ion conducting membrane; and a second electrode, wherein the first electrode is a porous electrode having a porous carbon, and the porous carbon has at least one type of metal-nonmetal element bond represented by M-R, in which M represents a metal element of Groups 4 to 15, and R represents a nonmetal element of Groups 14 to 16.
First claim
Opening claim text (preview).
The invention claimed is: 1. A method for producing a porous electrode comprising a porous carbon, the method comprising: applying a metal complex, or a metal ion and an organic compound having R onto a non-woven carbon fabric, followed by heating at 200 to 550° C. to obtain the porous electrode, wherein the porous carbon comprising at least one type of metal-nonmetal element bond represented by M-R, wherein M represents a metal element of Groups 4 to 15, and wherein R represents a nonmetal element of Groups 14 to 16. 2. The method for producing a porous electrode according to claim 1 , wherein the metal complex comprises at least one selected from the group consisting of triphenyl complexes, porphyrin complexes, phthalocyanine complexes, and dithiolene complexes. 3. The method for producing a porous electrode according to claim 1 , wherein the metal ion comprises at least one selected from the group consisting of nitrate ion, sulfate ion, chloride ion, bromide ion, iodide ion, and hydroxide ion, and the organic compound comprising R comprises at least one selected from the group consisting of poly(4-vinylpyridine), polyanilines, polythiophenes, bipyridine derivatives, imidazole derivatives, and pyrazole derivatives. 4. The method for producing a porous electrode according to claim 1 , wherein the metal complex is a complex of the metal element M, and a metal of the metal ion is the metal element M. 5. The method for producing a porous electrode according to claim 1 , wherein the metal complex and an electrically conductive carbon, or the metal ion, the organic compound having R and an electrically conductive carbon are applied on the non-woven carbon fabric. 6. The method for producing a porous electrode according to claim 1 , wherein the metal element M is chemically bonded to any one of a carbon element constituting the porous carbon and nitrogen element, sulfur element, or oxygen element which is covalently bonded to the carbon element by the heating. 7. The method for producing a porous electrode according to claim 1 , wherein the heating occurs at a temperature in the range of 200 to 450° C.
Assignees
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Classifications
Impregnation of carbon · CPC title
with diaphragms · CPC title
of carbon dioxide · CPC title
- C25B1/23Primary
Carbon monoxide or syngas · CPC title
- C25B11/031Primary
Porous electrodes · CPC title
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- What does patent US12398474B2 cover?
- A carbon dioxide reduction device of the present invention is a carbon dioxide reduction device comprising a first electrode; at least any one of an electrolyte solution and an ion conducting membrane; and a second electrode, wherein the first electrode is a porous electrode having a porous carbon, and the porous carbon has at least one type of metal-nonmetal element bond represented by M-R, in…
- Who is the assignee on this patent?
- Sekisui Chemical Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification C25B1/23. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Aug 26 2025 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 4 related publications on this page (citations in our corpus or others sharing the same primary CPC).