Nanomaterial dopant composition composite, dopant composition, and method for manufacturing nanomaterial dopant composition composite

Patent metadata

Field	Value
Publication number	US-10355190-B2
Application number	US-201515313790-A
Country	US
Kind code	B2
Filing date	Jun 19, 2015
Priority date	Jun 26, 2014
Publication date	Jul 16, 2019
Grant date	Jul 16, 2019

Abstract

The present invention provides a method for manufacturing a dopant composition-nanomaterial composite, which method makes it possible to simply and efficiently change a Seebeck coefficient value of a nanomaterial. This manufacture method of the present invention includes the step of putting a dopant composition in contact with a nanomaterial in a solvent, the dopant composition containing an anion, a cation, and a scavenger.

First claim

The invention claimed is:

1. A method for manufacturing a dopant composition-nanomaterial composite, the method comprising:
putting a dopant composition in contact with a nanomaterial in a solvent,
wherein the dopant composition is a composition for changing a Seebeck coefficient of a nanomaterial, and contains an anion, a cation, and a scavenger for capturing the cation, and
wherein the scavenger is cyclodextrin, crown ether, azacrown ether, ethylenediaminetetraacetate, calixarene, salen, or a derivative thereof.

2. The method as set forth in claim 1 , wherein the anion is at least one selected from the group consisting of OH − , CH 3 O − , CH 3 CH 2 O − , i-PrO − , t-BuO − , SH − , CH 3 S − , C 2 H 5 S − , CN − , I − , Br − , Cl − and CH 3 COO − .

3. The method as set forth in claim 1 , wherein:
the cation is a metal ion; and
the scavenger is an organic ligand.

4. The method as set forth in claim 1 , wherein the nanomaterial is at least one selected from the group consisting of nanoparticles, nanotubes, nanowires, nanorods and nanosheets.

5. The method as set forth in claim 1 , wherein the nanomaterial and the dopant composition are put in contact with each other by impregnating the nanomaterial with a solution in which the dopant composition is dissolved in the solvent or by shear dispersion of the nanomaterial in the solution in which the dopant composition is dissolved in the solvent.

6. The method as set forth in claim 1 , wherein the anion is an n-type dopant.

7. A dopant composition-nanomaterial composite, comprising:
a nanomaterial; and
a dopant composition,
wherein the dopant composition is a composition for changing a Seebeck coefficient of a nanomaterial, and contains an anion, a cation, and a scavenger for capturing the cation,
wherein the scavenger is cyclodextrin, crown ether, azacrown ether, ethylenediaminetetraacetate, calixarene, salen, or a derivative of any thereof, and
wherein the dopant composition-nanomaterial composite comprises the anion and the scavenger having the cation captured therein.

8. The composite as set forth in claim 7 , wherein the anion is at least one selected from the group consisting of OH − , CH 3 O − , CH 3 CH 2 O − , i-PrO − , t-BuO − , SH − , CH 3 S − , C 2 H 5 S − , CN − , I − , Br − , Cl − and CH 3 COO − .

9. The composite of claim 7 , wherein: the cation is a metal ion; and the scavenger is an organic ligand.

10. The composite of claim 7 , wherein the nanomaterial is at least one selected from the group consisting of nanoparticles, nanotubes, nanowires, nanorods and nanosheets.

11. The composite of claim 7 , wherein the anion is an n-type dopant.

Assignees

• National Univ Corporation Nara Institute Of Science And Technology
• Sekisui Chemical Co Ltd

Inventors

• Nonoguchi Yoshiyuki
• Kawai Tsuyoshi
• Nakano Motohiro

Classifications

• C01B32/178

  Opening; Filling · CPC title

• B82Y40/00

  Manufacture or treatment of nanostructures · CPC title

• B82Y30/00

  Nanotechnology for materials or surface science, e.g. nanocomposites · CPC title

• C01B32/194

  After-treatment · CPC title

• Y10S977/948

  Energy storage/generating using nanostructure, e.g. fuel cell, battery · CPC title