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Method for preparing electrode material by graphene oxide and poly 3, 4-ethylenedioxythiophene

An ethylenedioxythiophene and electrode preparation technology, which is applied to battery electrodes, circuits, electrical components, etc., can solve the problems of high cost, reduced electrical conductivity of electrode materials, and toxic effects on the environment and microorganisms, and achieves low impedance and specific surface area. And the effect of high electrical conductivity and high electron transfer efficiency

Inactive Publication Date: 2018-04-17
SHAANXI SHENGMAI PETROLEUM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the preparation process of traditional graphene and its anode materials, the strong reducing agents (such as hydrazine) used are toxic to the environment and microorganisms; the use of binders such as Nafion and polytetrafluoroethylene will make the electrodes The conductivity of the material is reduced and the cost is high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Utilize graphene oxide and poly-3,4-ethylenedioxythiophene to prepare the method for electrode material, comprise the following steps:

[0020] (1) Soak the carbon felt in a hydrogen peroxide solution with a mass concentration of 10%, react at a constant temperature of 90°C for 3 hours, then rinse the carbon felt with deionized water for 5 times, and dry it at 60°C for 4 hours;

[0021] (2) Mix 1 mg / mL graphene oxide solution, 0.01 mol / L 3,4-ethylenedioxythiophene solution and 0.1 mol / L electrolyte sodium sulfate solution with a volume ratio of 2:3:5, and ultrasonically Under the conditions of power 300W and ultrasonic frequency 30Hz, ultrasonic reaction was performed for 10 minutes to obtain an electrolyte suspension, and then the carbon felt treated in step (1) was soaked in the electrolyte suspension, soaked at room temperature for 30 minutes, and then soaked at 40°C 2h; then conduct electrodeposition, specifically: set the electrodeposition current to 5 mA cm −2 , ...

Embodiment 2

[0024] Utilize graphene oxide and poly-3,4-ethylenedioxythiophene to prepare the method for electrode material, comprise the following steps:

[0025] (1) Soak the carbon felt in a hydrogen peroxide solution with a mass concentration of 10%, react at a constant temperature of 90°C for 5 hours, then rinse the carbon felt with deionized water for 5 times, and dry it at 60°C for 4 hours;

[0026] (2) Mix 1 mg / mL graphene oxide solution, 0.01 mol / L 3,4-ethylenedioxythiophene solution and 0.1 mol / L electrolyte sodium sulfate solution with a volume ratio of 2:3:5, and ultrasonically Under the conditions of power 500W and ultrasonic frequency 30Hz, ultrasonic reaction was performed for 10 minutes to obtain an electrolyte suspension, and then the carbon felt treated in step (1) was soaked in the electrolyte suspension for 30 minutes at room temperature, and then soaked at 40°C 3h; then conduct electrodeposition, specifically: set the electrodeposition current to 5 mA cm −2 , the runn...

Embodiment 3

[0029] Utilize graphene oxide and poly-3,4-ethylenedioxythiophene to prepare the method for electrode material, comprise the following steps:

[0030] (1) Soak the carbon felt in a hydrogen peroxide solution with a mass concentration of 10%, react at a constant temperature of 90°C for 4 hours, then rinse the carbon felt with deionized water for 5 times, and dry it at 60°C for 4 hours;

[0031] (2) Mix 1 mg / mL graphene oxide solution, 0.01 mol / L 3,4-ethylenedioxythiophene solution and 0.1 mol / L electrolyte sodium sulfate solution with a volume ratio of 2:3:5, and ultrasonically Under the conditions of power 400W and ultrasonic frequency 30Hz, ultrasonic reaction was performed for 10 minutes to obtain an electrolyte suspension, and then the carbon felt treated in step (1) was soaked in the electrolyte suspension for 30 minutes at room temperature, and then soaked at 40°C 2.5h; then conduct electrodeposition, specifically: set the electrodeposition current to 5 mA cm −2 , the ru...

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PUM

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Abstract

The invention discloses a method for preparing an electrode material by graphene oxide and poly 3, 4-ethylenedioxythiophene. The method comprises the following steps of (1) immersing carbon felt in ahydrogen peroxide solution, performing constant-temperature reaction under 90 DEG C, washing the carbon felt with deionized water, and drying the carbon felt; (2) mixing a graphene oxide solution, 3,4-ethylenedioxythiophene solution and an electrolyte sodium sulfate solution, performing ultrasonic reaction to obtain an electrolyte suspension liquid, immersing the carbon felt in the electrolyte suspension liquid, performing immersion for 30 minutes under a room temperature, performing immersing for 2-3 hours under 40 DEG C, and performing electrodeposition; and (3) performing microwave reaction on the carbon felt for 5 minutes, and performing drying. The electrode material prepared by the method is compact and uniform in surface, the electrode is high in specific area and conductivity, lowin impedance and high in electron transfer efficiency, and has favorable biocompatibility, namely power generation performance.

Description

technical field [0001] The invention belongs to the field of electrode material preparation, and in particular relates to a method for preparing electrode materials by utilizing graphene oxide and poly-3,4-ethylenedioxythiophene. Background technique [0002] As a bioelectrochemical system, microbial fuel cell (MFC) uses electricity-producing microorganisms such as bacteria or yeast as catalysts, and can realize the dual functions of organic waste treatment and electricity generation. It is a new energy technology. . Compared with traditional energy sources, microbial fuel cells have the characteristics of high energy conversion efficiency, wide range of fuel sources, clean and pollution-free, etc., so they have attracted extensive attention from scholars. However, the low power generation capacity of microbial fuel cells is difficult to be directly utilized, which seriously hinders its practical application. As the carrier for the attachment and growth of electrogenic mic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/88
CPCH01M4/8803Y02E60/50
Inventor 王耀斌
Owner SHAANXI SHENGMAI PETROLEUM
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