Method of making carbon nanotube bundle

Patent metadata

Field	Value
Publication number	US-11542165-B2
Application number	US-202016908954-A
Country	US
Kind code	B2
Filing date	Jun 23, 2020
Priority date	Dec 24, 2019
Publication date	Jan 3, 2023
Grant date	Jan 3, 2023

Abstract

A method of making a carbon nanotube bundle is provided. A plurality of carbon nanotubes is provided. A plurality of sulfur nanoparticles is disposed on the plurality of carbon nanotubes to form at least two visible carbon nanotubes. The at least two visible carbon nanotubes are stacked to form a carbon nanotube bundle preparation body. The plurality of sulfur nanoparticles in the carbon nanotube bundle preparation body is removed to obtain the carbon nanotube bundle.

First claim

What is claimed is:

1. A method of making a carbon nanotube bundle, the method comprises:
providing a plurality of carbon nanotubes;
disposing sulfur nanoparticles on the plurality of carbon nanotubes;
stacking the plurality of carbon nanotubes with the sulfur nanoparticles thereon to form a carbon nanotube bundle preparation body; and
removing the sulfur nanoparticles in the carbon nanotube bundle preparation body to obtain a carbon nanotube bundle.

2. The method of claim 1 , wherein a method of disposing the sulfur nanoparticles on the plurality of carbon nanotubes comprises:
heating sulfur powder to melt the sulfur powder to form a sulfur liquid;
suspending the plurality of carbon nanotubes above the sulfur liquid, and depositing a sulfur vapor on the plurality of carbon nanotubes to form the sulfur nanoparticles.

3. The method of claim 2 , wherein the sulfur powder is heated to a temperature ranged from approximately 130° C. to approximately 160° C.

4. The method of claim 2 , wherein the plurality of carbon nanotubes are suspended between two supports and portions of the plurality of carbon nanotubes are suspended.

5. The method of claim 4 , wherein two ends of at least one of the carbon nanotubes with the sulfur nanoparticles thereon are cut off by two tungsten needle tips, and the at least one carbon nanotube with the sulfur nanoparticles thereon is adhered to the two tungsten needle tips after the cutting.

6. The method of claim 5 , wherein the two tungsten needle tips are in contact with two ends of the portions which are suspended of the at least one carbon nanotube with the sulfur nanoparticles thereon, then the two tungsten needle tips are moved to cut off the two ends of the portions which are suspended of the at least one carbon nanotube with the sulfur nanoparticles thereon.

7. The method of claim 1 , wherein the carbon nanotube bundle preparation body is placed in a nitrogen cabinet to remove the sulfur nanoparticles to obtain the carbon nanotube bundle.

8. The method of claim 1 , wherein the carbon nanotube bundle preparation body is heated to sublimate and remove the sulfur nanoparticles to obtain the carbon nanotube bundle.

9. A method of making a carbon nanotube bundle, the method comprises:
providing a plurality of carbon nanotubes;
suspending the plurality of carbon nanotubes by two supports, and disposing a sulfur nanoparticles on the plurality of carbon nanotubes;
stacking the plurality of carbon nanotubes with the sulfur nanoparticles thereon to form a carbon nanotube bundle preparation body; and
removing the sulfur nanoparticles in the carbon nanotube bundle preparation body to obtain a carbon nanotube bundle.

10. The method of claim 9 , wherein a method for disposing the sulfur nanoparticles on the plurality of carbon nanotubes comprises:
heating sulfur powder to melt the sulfur powder to form a sulfur liquid;
suspending the plurality of carbon nanotubes above the sulfur liquid, and depositing a sulfur vapor on the plurality of carbon nanotubes to form the sulfur nanoparticles.

11. The method of claim 10 , wherein the sulfur powder is heated to a temperature ranged from approximately 130° C. to approximately 160° C.

12. The method of claim 10 , wherein portions of the plurality of carbon nanotubes are suspended between the two supports.

13. The method of claim 9 , wherein two ends of at least one of the carbon nanotubes with the sulfur nanoparticles thereon are cut off by two tungsten needle tips, and the at least one carbon nanotube with the sulfur nanoparticles thereon is adhered to the two tungsten needle tips.

14. The method of claim 13 , wherein the two tungsten needle tips are in contact with two ends of the portions which are suspended of the at least one carbon nanotube with the sulfur nanoparticles thereon, then the two tungsten needle tips are moved to cut off the two ends of the portions which are suspended of the at least one carbon nanotube with the sulfur nanoparticles thereon.

15. The method of claim 9 , wherein the carbon nanotube bundle preparation body is placed in a nitrogen cabinet to remove the sulfur nanoparticles to obtain the carbon nanotube bundle.

16. The method of claim 9 , wherein the carbon nanotube bundle preparation body is heated to sublimate and remove the sulfur nanoparticles to obtain the carbon nanotube bundle.

Assignees

• Univ Tsinghua
• Hon Hai Prec Ind Co Ltd

Inventors

• Yang Xin-He
• Liu Peng
• Jiang Kai-Li
• Fan Shou-Shan

Classifications

• C01B32/176 Primary

  Cutting · CPC title

• C01B2202/08

  Aligned nanotubes · CPC title

• C01B32/168 Primary

  After-treatment · CPC title