Method for making composite structure with porous metal

Patent metadata

Field	Value
Publication number	US-2018354232-A1
Application number	US-201715798756-A
Country	US
Kind code	A1
Filing date	Oct 31, 2017
Priority date	Jun 9, 2017
Publication date	Dec 13, 2018
Grant date	—

Abstract

A method for making composite structure with porous metal comprising: S20, providing a substrate; S30, fixing a porous metal structure on the substrate to obtain a first middle structure; S40, fixing at least one carbon nanotube structure on the porous metal structure in the first middle structure to obtain a second middle structure; and S50, shrinking the second middle structure to form a composite structure with porous metal.

First claim

What is claimed is:

1 . A method for making a composite structure with porous metal comprising:
providing a substrate; fixing a porous metal structure on the substrate to obtain a first middle structure; fixing at least one carbon nanotube structure on a surface of the porous metal structure to obtain a second middle structure; and shrinking the second middle structure to form the composite structure with porous metal.

2 . The method of claim 1 , wherein the substrate is made of plastic, the substrate is melted by heating to bond the porous metal structure.

3 . The method of claim 2 , wherein the plastic is polystyrene.

4 . The method of claim 1 , wherein the porous metal structure is a nanoporous gold film, wherein the method further comprises: making the nanoporous gold film by:
providing an Au—Ag alloy film; placing the Au—Ag alloy film in a concentrated nitric acid solution to form the nanoporous gold film until the Au—Ag alloy film is changed from a silver-white color film to a brown-red color film; and cleaning the nanoporous gold film by deionized water.

5 . The method of claim 1 , wherein in fixing the at least one carbon nanotube structure on the porous metal structure, the method further comprises: dropping an organic binder material to a surface of the at least one carbon nanotube structure in the first middle structure, wherein the organic binder material enters the porous metal structure from micropores in the carbon nanotubes; and wherein the organic binder material envelops at least one contact surface between the porous metal structure and the at least one carbon nanotube structure.

6 . The method of claim 5 , wherein the micropores are formed by adjacent carbon nanotubes in the at least one carbon nanotube structure.

7 . The method of claim 1 , wherein in fixing at least one carbon nanotube structure on the porous metal structure, the method further comprises: transferring the second middle structure into a metal ion solution; and adding a reducing agent to the metal ion solution to form metal atoms, wherein the metal atoms are deposited around at least one contact surface between the porous metal structure and the carbon nanotube structure.

8 . The method of claim 7 , wherein the metal ion solution is selected from a group consisting of gold ion, silver ion, copper ion, and a combination thereof.

9 . The method of claim 1 , wherein the at least one carbon nanotube structure comprises a plurality of carbon nanotubes arranged along a same direction.

10 . The method of claim 1 , wherein heating the second middle structure to make the substrate in the second middle structure shrink.

11 . The method of claim 1 , wherein the porous metal structure is fixed on the substrate and the carbon nanotube structure is fixed on the porous metal structure, and the substrate drives the porous metal structure and the carbon nanotube structure to shrink together.

12 . The method of claim 1 , wherein the porous metal structure and the at least one carbon nanotube structure are shrunk together to form a plurality of wrinkled parts, and the plurality of wrinkled parts are connected to each other to form a continuous structure.

Assignees

• Univ Tsinghua
• Hon Hai Prec Ind Co Ltd

Inventors

• Fu hong-ying
• Li Wen-Zhen

Classifications

• C23C18/1651

  Two or more layers only obtained by electroless plating · CPC title

• C23C18/48

  Coating with alloys · CPC title

• C23C18/1648

  Porous product · CPC title

• C23C18/38

  Coating with copper · CPC title

• B82Y40/00

  Manufacture or treatment of nanostructures · CPC title