GRAPHENE OXIDE REDUCING AGENT COMPRISING A REDUCING AGENT CONTAINING A HALOGEN ELEMENT, METHOD FOR MANUFACTURING A REDUCED GRAPHENE OXIDE USING SAME, AND USE OF THE REDUCED GRAPHENE OXIDE MANUFACTURED BY THE METHOD

• US 20130079552A1
• Filed: 09/01/2010
• Published: 03/28/2013
• Est. Priority Date: 03/29/2010
• Status: Active Grant

• Current Assignee: Sungkyunkwan University Foundation For Corporate Collaboration (SungKyunKwan University (SKKU))
• Original Assignee: Sungkyunkwan University Foundation For Corporate Collaboration (SungKyunKwan University (SKKU))
• Inventors: Lee, Hyo Young, Lee, Jung Hyun, Moon, In Kyu
• Granted Patent: US 9,090,805 B2
• Time in Patent Office: Days
• US Class Current: 562/488
• CPC Class Codes: B01D 69/08 Hollow fibre membranes manufacture of hollow fibres D01D5/24, D01F1/08
• CPC Class Codes: B01D 71/021 Carbon
• CPC Class Codes: B01D 71/0211 Graphene or derivates thereof
• CPC Class Codes: B82Y 30/00 Nanotechnology for materials or surface science, e.g. nanocomposites
• CPC Class Codes: B82Y 40/00 Manufacture or treatment of nanostructures
• CPC Class Codes: C01B 32/192 starting from graphitic oxides
• CPC Class Codes: C09K 3/00 Materials not provided for elsewhere
• CPC Class Codes: H01G 9/042 characterised by the material H01G11/22 takes precedence
• CPC Class Codes: H01M 4/48 of inorganic oxides or hydroxides
• CPC Class Codes: Y02E 60/10 Energy storage using batteries
• CPC Class Codes: Y10S 977/847 Surface modifications, e.g. functionalization, coating

Abstract

The present invention relates to a novel graphene oxide reducing agent and a method for manufacturing a reduced graphene oxide from graphene oxide using same. More particularly, in the present invention, the reduced graphene oxide is manufactured by reducing a graphene oxide using a reducing agent containing a halogen element, and is applicable as an electric conductor, a semiconductor, and an insulator in various fields.

Claims

1. A graphene oxide reducer comprising a reducer comprising a halogen element.

2. The graphene oxide reducer of claim 1, wherein the reducer including the halogen element is selected from the group consisting of HI, HCl, and HBr.

3. The graphene oxide reducer of claim 2, wherein the reducer including a halogen element is HI.

4. The graphene oxide reducer of claim 1, wherein the graphene oxide reducer further includes acid weaker than the reducer including a halogen element, and the acid weaker than the reducer including a halogen element is selected from the group consisting of acetic acid, a carbonic acid, formic acid, and benzoic acid.

5. The graphene oxide reducer of claim 4, wherein the graphene oxide reducer further includes acetic acid.

6. A method of producing reduced a graphene oxide comprising reacting graphene oxide with a graphene oxide reducer comprising a reducer including a halogen element.

7. The method of claim 6, wherein the reaction is performed at a temperature of 10°

C. or more.

8. The method of claim 6, wherein the reducer including a halogen element is selected from the group consisting of HI, HCl, and HBr.

9. The method of claim 8, wherein the reducer including the halogen element is HI.

10. The method of claim 6, wherein the graphene oxide reducer further comprises acid weaker than the reducer including the halogen element, and the acid weaker than the reducer including the halogen element is selected from the group consisting of acetic acid, carbonic acid, formic acid, and benzoic acid.

11. The method of claim 6, wherein the graphene oxide is in the form of powder, a paper, or a film.

12. The method of claim 6, wherein graphene oxide is added to a solvent, and then, the reducer including the halogen element is added to cause a reaction.

13. The method of claim 12, wherein the solvent is acetic acid, and the reducer including the halogen element is HI.

14. The method of claim 12, wherein the solvent is distilled water, and the reducer including the halogen element is HI.

15. The method of claim 6, wherein a graphene oxide paper or film is impregnated in a reducer solution including the halogen element.

16. The method of claim 15, wherein the reducer solution including the halogen element is HI solution.

17. The method of claim 16, wherein the solution further includes acetic acid.

18. The method of claim 6, wherein a graphene oxide paper or film is reacted with a steam gas of the reducer including the halogen element, and the steam gas is vaporized from a reducer solution including the halogen element.

19. The method for producing reduced graphene oxide of claim 18, wherein the reducer solution including the halogen element is HI solution.

20. The method for producing reduced graphene oxide of claim 19, wherein the solution further includes acetic acid.

21. Use of reduced graphene oxide produced by reacting a reducer including a halogen element, or the reducer including the halogen element and acetic acid with graphene oxide, for a plastic solar cell doping material, a super capacitor, a lithium battery electrode material, a membrane filter, a biosensor, a transparent electrode or flexible electrode material, a memory device, or a third non-linear optical device.