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Co-doping polypyrrole material as well as preparation method and application thereof

A polypyrrole, co-doping technology, applied in electrical components, electrochemical generators, battery electrodes, etc., can solve problems such as high impedance and can not overcome polypyrrole

Inactive Publication Date: 2014-08-20
SHANGHAI NAT ENG RES CENT FORNANOTECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this material cannot overcome the problem of high impedance of polypyrrole in the reduced state.

Method used

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  • Co-doping polypyrrole material as well as preparation method and application thereof
  • Co-doping polypyrrole material as well as preparation method and application thereof
  • Co-doping polypyrrole material as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Prepare an aqueous solution containing 0.1 M pyrrole monomer, 0.0005 M AQS sulfate, 1.0 mg / ml graphene oxide (GO), and pass N 2 After 30 min, a three-electrode system was used for galvanostatic electrodeposition with an applied current of 0.5 mA cm. -2 , the charge of electrodeposition was 1.2 coulombs; the obtained PPy / AQS / GO composites were washed and placed in a three-electrode system for electrochemical reduction, the applied voltage was 1.1 V, and the electrolyte was PBS buffer solution. The PPy / AQS / r-GO electrode material can be obtained by repeated washing with water.

Embodiment 2

[0023] Prepare an aqueous solution containing 0.2 M pyrrole monomer, 0.0005 M AQS sulfate, 1.0 mg / ml graphene oxide (GO), and pass N 2 After 30 min, a three-electrode system was used for galvanostatic electrodeposition with an applied current of 2 mA cm. -2 , the electric charge of electrodeposition was 2.0 coulombs; the obtained PPy / AQS / GO composites were washed and placed in a three-electrode system for electrochemical reduction, the applied voltage was 1.2 V, and the electrolyte was PBS buffer solution. The PPy / AQS / r-GO electrode material can be obtained by repeated washing with water.

Embodiment 3

[0025] Prepare an aqueous solution containing 0.05 M pyrrole monomer, 0.1 M AQS sulfate, 1 mg / ml graphene oxide (GO), and pass N 2 After 30 min, a three-electrode system was used for galvanostatic electrodeposition with an applied current of 1 mA cm. -2 , the electric charge of electrodeposition was 1.6 coulombs; the obtained PPy / AQS / GO composites were washed and placed in a three-electrode system for electrochemical reduction, the applied voltage was 1.0 V, and the electrolyte was PBS buffer solution. The PPy / AQS / r-GO electrode material can be obtained by repeated washing with water.

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Abstract

The invention relates to a co-doping polypyrrole material as well as a preparation method and an application thereof. The preparation method is characterized by comprising the steps: obtaining a polypyrrole / anthraquinone / graphene oxide composite material in a liquid which is formed from pyrrole monomer, anthraquinone-2-sodium sulfonate and graphene oxide by utilizing an electrochemical deposition method, and then electrochemically reducing the polypyrrole / anthraquinone / graphene oxide composite material to obtain the polypyrrole / anthraquinone / graphene oxide composite material. The preparation method can be carried out under the normal temperature, equipment is simple and easy to operate, and the selection range of the used co-doping system is wide. The porous micro-nano polypyrrole material prepared through the preparation method is excellent in conductivity and electrochemical performance and can be applied to a flexible energy storage device.

Description

technical field [0001] The invention relates to a co-doped polypyrrole material and a preparation method and application thereof, in particular to a method for preparing a polypyrrole composite electrode material for biocompatible batteries. Background technique [0002] The power sources used in existing implantable medical devices are mainly lithium batteries, such as Li / I 2 , Li / V 2 O 5 , Li / MnO 2 , Li / Ag 2 V 4 O 11 and Li / CFx. The toxicity of the electrode material and the electrolyte itself makes the battery need to keep the battery shell isolated from the human body to ensure safety, which virtually increases the volume of the battery and the implantable medical device, which is not conducive to its miniaturization. Research on miniaturized implantable medical device power supply has become a hot and imminent research topic in the world. [0003] The structure of the biocompatible battery is relatively simple, and the principle is a metal / air battery. It uses...

Claims

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Application Information

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IPC IPC(8): H01M4/60
CPCH01M4/364H01M4/60H01M10/0525Y02E60/10
Inventor 何丹农杨扬张春明黄昭王丹吴晓燕严鹏
Owner SHANGHAI NAT ENG RES CENT FORNANOTECH
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