Direct growth of polyaniline nanotubes on carbon cloth for flexible and high-performance supercapacitors

Patent metadata

Field	Value
Publication number	US-2020161061-A1
Application number	US-202016751314-A
Country	US
Kind code	A1
Filing date	Jan 24, 2020
Priority date	Apr 1, 2016
Publication date	May 21, 2020
Grant date	—

Abstract

The present disclosure further provides an exemplary energy storage device fabricated from rectangular-tube polyaniline (PANI) that is chemically synthesized by a simple and convenient method. The rectangular-tube PANI, as an active material, is synthesized on a functionalized carbon cloth (FCC) as a substrate, and the obtained composite is immobilized on a stainless steel mesh as a current collector. The present disclosure additionally presents a facile technique for the direct synthesis of PANI nanotubes, with rectangular pores, on chemically activated CC.

First claim

What is claimed is:

1 . An energy storage device comprising:
two or more electrodes, wherein at least one of the two or more electrodes comprises a functionalized carbon electrode comprising a carbon substrate and one or more conducting polymer polygonal nanotubes disposed on the carbon substrate; a current collector; and a redox electrolyte in direct contact with an interior surface and an exterior surface of the one or more conducting polymer polygonal nanotubes.

2 . The energy storage device of claim 1 , wherein the one or more conducting polymer polygonal nanotubes have a length of 100 nanometers to 10,000 nanometers.

3 . The energy storage device of claim 1 , wherein the one or more conducting polymer polygonal nanotubes have an outer width of 10 nanometers to 1,000 nanometers.

4 . The energy storage device of claim 1 , wherein the one or more conducting polymer polygonal nanotubes have an inner width of 50 nanometers to 800 nanometers.

5 . The energy storage device of claim 1 , wherein a surface of the one or more conducting polymer polygonal nanotubes contains a nanostructure.

6 . The energy storage device of claim 1 , wherein the redox electrolyte comprises a quinone.

7 . A method of fabricating a functionalized carbon electrode comprising:
(a) functionalizing a carbon substrate to form a functionalized carbon substrate; (b) preparing the functionalized carbon substrate; (c) formulating a polymerization fluid; and (d) synthesizing one or more conducting polymer polygonal nanotubes on the functionalized carbon substrate.

8 . The method of claim 7 , wherein the functionalizing of the carbon substrate to form the functionalized carbon substrate comprises:
(i) forming a functionalization solution; (ii) heating the functionalization solution; (iii) cooling the functionalization solution; (iv) displacing a piece of the carbon substrate into the functionalization solution to form a piece of the functionalized carbon substrate; and (v) rinsing the piece of the functionalized carbon substrate.

9 . The method of claim 8 , wherein the heating of the functionalization solution occurs at a temperature of 30° C. to 120° C.

10 . The method of claim 8 , wherein the heating of the functionalization solution occurs for a period of time of 60 minutes to 240 minutes.

11 . The method of claim 7 , further comprising a step of annealing the functionalized carbon substrate after the carbon substrate is functionalized.

12 . The method of claim 11 , wherein the functionalized carbon substrate is annealed at a temperature of 100° C. to 400° C.

13 . The method of claim 7 , wherein the preparing of the functionalized carbon substrate comprises:
(i) cutting a piece of the functionalized carbon substrate; (ii) submerging the piece of functionalized carbon substrate in a solvent solution; (iii) sonicating the piece of functionalized carbon substrate in the solvent solution; and (iv) drying the piece of functionalized carbon substrate.

14 . The method of claim 13 , wherein the sonicating occurs for a period of time of 15 minutes to 60 minutes.

15 . The method of claim 13 , wherein the drying occurs over a period of time of 3 hours to 12 hours.

16 . The method of claim 7 , wherein the formulating of the polymerization fluid comprises:
(i) forming a polymerization solution comprising:
a conducting polymer;
an acid;
a detergent;
water; and
an oxidizing agent; and
(ii) stirring the polymerization solution to form the polymerization fluid.

17 . The method of claim 16 , wherein the stirring of the polymerization solution occurs for a period of time of 10 minutes to 40 minutes.

18 . The method of claim 7 , wherein the synthesizing of the one or more conducting polymer polygonal nanotubes on the functionalized carbon substrate comprises:
(i) agitating the polymerization fluid; (ii) immersing the functionalized carbon substrate in the polymerization fluid; (iii) storing the functionalized carbon substrate in the polymerization fluid; (iv) removing the functionalized carbon substrate from the polymerization fluid; (v) washing the functionalized carbon substrate; and (vi) drying the functionalized carbon substrate.

19 . The method of claim 18 , wherein the storing of the functionalized carbon substrate in the polymerization fluid occurs at a temperature of 10° C. to 50° C.

20 . The method of claim 18 , wherein the storing of the functionalized carbon substrate in the polymerization fluid occurs for a period of time of at least 8 hours.

Assignees

• Univ California

Inventors

• Kaner Richard B
• El-Kady Maher F
• Mousavi Mir Fazlollah
• Hashemi Masumeh
• Rahmanifar Mohammad S

Classifications

• H01G11/86

  specially adapted for electrodes (carbonisation or activation of carbon for the manufacture of electrodes H01G11/34) · CPC title

• Y02E60/13

  Energy storage using capacitors · CPC title

• H01G11/24

  characterised by structural features of the materials making up or comprised in the electrodes, e.g. form, surface area or porosity; characterised by the structural features of powders or particles used therefor · CPC title

• H01G11/02 Primary

  using combined reduction-oxidation reactions, e.g. redox arrangement or solion · CPC title

• H01G11/36 Primary

  Nanostructures, e.g. nanofibres, nanotubes or fullerenes · CPC title