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Polyaniline-doped electrode material for supercapacitor, and preparation method and application thereof

A technology for supercapacitors and electrode materials, which is applied in the manufacture of hybrid capacitor electrodes and hybrid/electric double layer capacitors. It can solve the problems of polyaniline structure, chemical stability and plasticity, and limit potential applications, and achieve reversibility and cycle performance. Excellent, less pollution, simple operation effect

Pending Publication Date: 2021-07-23
GUANGXI NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the methods for preparing polyaniline include electrodeposition method, interfacial polymerization method and template method. The template method has attracted much attention because it has a fixed template and can prepare polyaniline with a specific shape. However, due to the complexity of polyaniline structure and conductive mechanism , polyaniline prepared with different templates is different in structure, chemical stability, plasticity, etc., which limits its potential application in the field of supercapacitors

Method used

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  • Polyaniline-doped electrode material for supercapacitor, and preparation method and application thereof
  • Polyaniline-doped electrode material for supercapacitor, and preparation method and application thereof
  • Polyaniline-doped electrode material for supercapacitor, and preparation method and application thereof

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Effect test

Embodiment 1

[0032] 1) Take 2.0 mL of Tween-80, 5.7 g of sodium dodecylbenzenesulfonate and 1.0 M HCl solution in a 250 mL round-bottomed flask. -1 Under the speed of , stir magnetically for 30 min, mix well, and obtain solution A;

[0033] 2) Continue at 60 r min -1 Add 1.5 mL of aniline (AN) to the solution A obtained in step 1) at a stirring speed of 1, and stir magnetically to obtain solution B;

[0034] 3) At 60 rpm -1 Slowly add ammonium persulfate (APS) (n AN :n APS = 1:1), at room temperature, magnetically stirred for 12 h;

[0035] 4) Collect the crude product, wash the product with deionized water, acetone and deionized water in sequence until the filtrate is neutral;

[0036] 5) The washed product was vacuum-dried at 60 °C for 24 h to obtain a dark green powder, that is, the ST-PANI prepared by double soft templates was obtained. The morphology of the prepared ST-PANI was characterized, and the prepared ST-PANI was scanned by a scanning electron microscope. Figure such as...

Embodiment 2

[0041] 1) Take 2.0 mL of Tween-80 or 5.7 g of sodium dodecylbenzenesulfonate and 1.0 M HCl solution in a 250 mL round-bottomed flask, at 60 r min -1 Under the speed of , stir magnetically for 30 min, mix well, and obtain solution A;

[0042] 2) Continue at 60 r min -1 Add 1.5 mL of aniline to the solution A obtained in step 1) at a stirring speed of 1, and stir magnetically to obtain solution B;

[0043] 3) At 60 rpm -1 Slowly add APS (n AN :n APS =1:1), at room temperature, magnetically stirred for 12 h;

[0044] 4) Collect the crude product, wash the product with deionized water, acetone and deionized water in sequence until the filtrate is neutral;

[0045] 5) The washed product was vacuum-dried at 60 °C for 24 h to obtain a dark green powder, that is, polyaniline T-PANI or S-PANI prepared with a single surfactant;

[0046] 6) The three-dimensional T-PANI or S-PANI prepared by the above steps is used as an electrode material for supercapacitors. The preparation method ...

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Abstract

The invention discloses a polyaniline-doped electrode material for a supercapacitor, and a preparation method and an application thereof. A nonionic surfactant and an anionic surfactant are used as double soft templates, aniline is used as a monomer, an oxidizing agent is adopted to promote aniline polymerization, and polyaniline (ST-PANI) with a nanofiber structure is prepared; and the method is high in reaction speed, simple to operate and small in pollution, and the polyaniline-doped electrode material prepared by the method is high in specific capacity, good in thermal stability, excellent in reversibility and cycle performance, has specific morphology and can be applied to an electrode material of a button type supercapacitor.

Description

technical field [0001] The present invention relates to supercapacitor electrode material technology, especially relates to the use of double soft template method to construct polyaniline@ordered molecular aggregates and obtain ST-PANI with three-dimensional porous structure, specifically a doped polyaniline electrode material for supercapacitors And preparation method and application. Background technique [0002] As a new type of chemical energy storage device, supercapacitor has the characteristics of high energy density, high specific capacity, good cycle performance and low environmental pollution. The performance of supercapacitors largely depends on the electrode materials, and among many electrode materials, polyaniline (PANI) as a conductive polymer has the advantages of easy to obtain raw materials, simple synthesis, low price, unique doping mechanism and high pseudo Capacitive energy storage characteristics have become a hot spot in the research of supercapacitor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G11/86H01G11/48H01G11/26C08G73/02
CPCC08G73/0266H01G11/26H01G11/48H01G11/86Y02E60/13
Inventor 钟新仙周海云何明基李姝慧杨健华梁华彬王红强李庆余
Owner GUANGXI NORMAL UNIV
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