Carbon material and method for producing carbon material

Patent metadata

Field	Value
Publication number	US-12090448-B2
Application number	US-202117603274-A
Country	US
Kind code	B2
Filing date	Mar 1, 2021
Priority date	Mar 5, 2020
Publication date	Sep 17, 2024
Grant date	Sep 17, 2024

Abstract

The present disclosure provides a carbon material including a carbon-containing layer having opening parts; and a solid body provided so as to cover the opening parts of the carbon-containing layer, in which the solid body has hole parts communicating with the opening parts.

First claim

The invention claimed is:

1. A carbon material comprising:
a carbon-containing layer having opening parts; and
a plurality of solid bodies, each of the plurality of solid bodies provided so as to cover the opening parts of the carbon-containing layer;
wherein each of the plurality of solid bodies is joined by TT-stacking to the carbon-containing layer;
wherein each of the plurality of solid bodies has hole parts communicating with the opening parts; and
wherein each of the plurality of solid bodies comprises at least one selected from the group consisting of:
(i) a compound represented by the following General Formula (1),

wherein each R 1 is an alkyl group, an alkoxy group, or a polyoxyalkylene group;

(ii) naphthalocyanine;
(iii) anthracocyanine;
(iv) azulenocyanine;
(V) a compound represented by the following General Formula (2),

wherein each R 2 is an alkyl group, an alkoxy group, or a polyoxyalkylene group;

(vi) a compound represented by the following General Formula (3),

wherein each R 3 is an alkyl group, an alkoxy group, or a polyoxyalkylene group; or

(vii) a compound represented by the following General Formula (4),

wherein each R 4 is an alkyl group, an alkoxy group, or a polyoxyalkylene group.

2. The carbon material according to claim 1 , wherein the carbon-containing layer is a monomolecular layer.

3. The carbon material according to claim 1 , wherein the carbon-containing layer comprises at least one selected from the group consisting of graphene and graphene oxide.

4. The carbon material according to claim 1 , wherein the plurality of the solid bodies are arranged on the carbon-containing layer.

5. The carbon material according to claim 1 , wherein the plurality of the solid bodies are arranged regularly on the carbon-containing layer.

6. A method for producing a carbon material, the method comprising:
a first step of preparing a dispersion liquid including a carbon-containing layer, a plurality of metal complexes, and a solvent, reducing the content of the solvent, and thereby forming a composite having each of the plurality of metal complexes adhered to the surface of the carbon-containing layer,
wherein each of the plurality of metal complexes is joined by TT-stacking to the carbon-containing layer;

a second step of heat-treating the composite and providing opening parts in the carbon-containing layer in the vicinity of the metal atoms constituting each of the plurality of metal complexes; and
a third step of removing at least a portion of the metal atoms constituting each of the plurality of metal complexes and then forming a solid body having hole parts communicating with the opening parts;
wherein each of the plurality of metal complexes includes a metal atom and a complex of at least one selected from the group consisting of:
(i) a compound represented by the following General Formula (1),

wherein each R 1 is an alkyl group, an alkoxy group, or a polyoxyalkylene group;

(ii) naphthalocyanine;
(iii) anthracocyanine;
(iv) azulenocyanine;
(v) a compound represented by the following General Formula (2),

wherein each R 2 is an alkyl group, an alkoxy group, or a polyoxyalkylene group;

(vi) a compound represented by the following General Formula (3),

wherein each R 3 is an alkyl group, an alkoxy group, or a polyoxyalkylene group; or

(vii) a compound represented by the following General Formula (4),

wherein each R 4 is an alkyl group, an alkoxy group, or a polyoxyalkylene group.

7. The method according to claim 6 , wherein the heating temperature for the second step is 200° C. to 450° C.

8. The method according to claim 6 , wherein the second step is a step of allowing the composite to be co-present with ammonium nitrate, heat-treating the mixture at 200° C. to 280° C. in a vacuum, and thereby providing opening parts in the carbon-containing layer in the vicinity of the metal atoms constituting each of the plurality of metal complexes.

9. The method according to claim 6 , wherein the third step is a step of removing at least a portion of the metal atoms by an acid treatment.

10. The method according to claim 6 , wherein the metal atom includes at least one selected from the group consisting of transition metals, alkaline earth metals, and aluminum.

11. The method according to claim 10 , wherein the transition metals include metal atoms of at least one kind selected from the group consisting of vanadium, iron, cobalt, nickel, copper, zinc, and lanthanides.

12. The method according to claim 6 , wherein the carbon-containing layer is a monomolecular layer.

13. The method according to claim 6 , wherein the carbon-containing layer contains at least one selected from the group consisting of graphene and graphene oxide.

14. The method according to claim 6 , wherein the plurality of metal complexes are arranged on the carbon-containing layer.

15. The method according to claim 6 , wherein the plurality of metal complexes are arranged regularly on the carbon-containing layer.

16. The carbon material according to claim 1 , wherein each R 1 , R 2 , R 3 , and R 4 includes 5-12 carbon atoms.

17. The method according to claim 6 , wherein each R 1 , R 2 , R 3 , and R 4 includes 5-12 carbon atoms.

Assignees

• Takagi Co Ltd
• Univ Shinshu

Inventors

• Kaneko Katsumi
• Takagi Toshio
• Shimizu Yasushi
• DRAGANA Stevic
• Murata Katsuyuki

Classifications

• C01P2006/14

  Pore volume · CPC title

• C01P2006/12

  Surface area · CPC title

• C01P2004/80

  Particles consisting of a mixture of two or more inorganic phases · CPC title

• C01P2004/64

  Nanometer sized, i.e. from 1-100 nanometer · CPC title

• C01P2004/13

  Nanotubes · CPC title