IP Library › Granted Patent US 12,398,474
Granted Patent B2
US 12,398,474 · App. 18/238,766 · Granted Aug 26, 2025

Carbon dioxide reduction device, and porous electrode

Inventor: Naohiro Fujinuma (Glassboro, NJ)
Assignee: SEKISUI CHEMICAL CO., LTD.
C25B11/031C25B1/23C25B3/26C25B9/19C25B11/044
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Quick Facts
Patent No.
US 12,398,474
App. No.
18/238,766
Granted
Aug 26, 2025
Kind
B2
Abstract

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.

Claims (14)

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.

Priority Claims (1)
JP 2017-186726 · Sep 27, 2017 · national
Continuity (2)
Division 16633267
Related Publication 20230407494A1 · Dec 21, 2023
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