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Preparation method of nitrogen-sulfur co-doped graphene oxide grafted polythiophene-co-pyrrole/Co3O4 electrode material

A nitrogen-sulfur co-doping, electrode material technology, applied in the field of composite materials and electrochemical materials, can solve the problems of poor conductivity, high price, poor cycle stability, etc., to improve wettability, enhance electronegativity, and improve specific capacitance. Effect

Active Publication Date: 2021-11-09
武夷学院 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Carbon materials have good conductivity and good chemical stability, but low specific capacitance; conductive polymers have high specific capacitance, but poor cycle stability; transition metal compounds have high specific capacitance and good chemical stability, but poor conductivity and are expensive

Method used

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  • Preparation method of nitrogen-sulfur co-doped graphene oxide grafted polythiophene-co-pyrrole/Co3O4 electrode material

Examples

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Embodiment 1

[0040] This example provides a nitrogen-sulfur co-doped graphene oxide grafted polythiophene-co-pyrrole / Co 3 o 4 The preparation method of electrode specifically comprises the following steps:

[0041] 1) Preparation of nitrogen and sulfur co-doped graphene oxide

[0042]Add 1.2 g of graphene oxide, 4 g of sodium dodecylbenzenesulfonate and 300 mL of deionized water into a three-necked flask, and stir magnetically at room temperature to form a dispersion. Add 0.5g thiazole and 1.6g FeCl to the dispersion 3 , continue stirring and reacting for 12h, the product is filtered, washed and dried to obtain a graphene oxide / polythiazole composite. Soak the complex in 100 mL of ammonium chloride solution with a mass concentration of 1.5% for 12 hours, wash and dry. The composite was put into a tube furnace, and under the protection of argon, the temperature was raised from 25°C to 280°C and kept for 2h, then the temperature was raised from 280°C to 780°C and kept for 2h to obtain ni...

Embodiment 2

[0052] This example provides a nitrogen-sulfur co-doped graphene oxide grafted polythiophene-co-pyrrole / Co 3 o 4 The preparation method of electrode specifically comprises the following steps:

[0053] 1) Preparation of nitrogen and sulfur co-doped graphene oxide

[0054] Add 1 g of graphene oxide, 4 g of sodium dodecylbenzenesulfonate, and 300 mL of deionized water into a three-necked flask, and stir magnetically at room temperature to form a dispersion. Add 0.45g thiazole and 1.6g FeCl to the dispersion 3 , continue stirring and reacting for 12h, the product is filtered, washed and dried to obtain a graphene oxide / polythiazole composite. Soak the complex in 100 mL of ammonium chloride solution with a mass concentration of 1.4% for 12 hours, wash and dry. The compound was put into a tube furnace, and under the protection of argon, the temperature was raised from 25°C to 285°C and kept for 2h, and then the temperature was raised from 285°C to 790°C and kept for 2h to obtai...

Embodiment 3

[0064] This example provides a nitrogen-sulfur co-doped graphene oxide grafted polythiophene-co-pyrrole / Co 3 o 4 The preparation method of electrode specifically comprises the following steps:

[0065] 1) Preparation of nitrogen and sulfur co-doped graphene oxide

[0066] Add 0.9 g of graphene oxide, 4 g of sodium dodecylbenzenesulfonate and 300 mL of deionized water into a three-necked flask, and stir magnetically at room temperature to form a dispersion. Add 0.55g thiazole and 1.6g FeCl to the dispersion 3 , continue stirring and reacting for 12h, the product is filtered, washed and dried to obtain a graphene oxide / polythiazole composite. Soak the complex in 100 mL of ammonium chloride solution with a mass concentration of 1.5% for 12 hours, wash and dry. The composite was put into a tube furnace, and under the protection of argon, the temperature was raised from 25°C to 295°C and kept for 2h, and then the temperature was raised from 295°C to 805°C and kept for 2h to obt...

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Abstract

The invention provides a preparation method of a nitrogen-sulfur co-doped graphene oxide grafted polythiophene-co-pyrrole / Co3O4 electrode. The preparation method comprises the following steps of 1, preparing the nitrogen-sulfur co-doped graphene oxide; (2) preparing the nitrogen-sulfur co-doped graphene oxide grafted polythiophene-co-pyrrole; 3, preparing the nitrogen-sulfur co-doped graphene oxide grafted polythiophene-co-pyrrole / Co3O4; and 4, preparing the nitrogen-sulfur co-doped graphene oxide grafted polythiophene-co-pyrrole / Co3O4 electrode. The preparation method has the characteristics of stable process, easiness in operation, reliable quality, low cost, light weight, no pollution and the like, and has a good commercial prospect.

Description

technical field [0001] The invention relates to a nitrogen-sulfur co-doped graphene oxide grafted polythiophene-co-pyrrole / Co 3 o 4 The invention discloses a method for preparing an electrode material, belonging to the fields of composite materials and electrochemical materials. Background technique [0002] Supercapacitors have the characteristics of fast charge and discharge rate, high energy density and power density, and long cycle life. They have broad application prospects in the fields of communication, electronics, energy, and transportation. The excellent performance of supercapacitors mainly depends on the selection of electrode materials. The activity, size, and conductivity of electrode materials determine the performance of supercapacitors. At present, carbon materials, conductive polymers and transition metal compounds are mainly used as electrode materials. Carbon materials have good conductivity and good chemical stability, but low specific capacitance; c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G11/34H01G11/86H01G11/24H01G11/30H01G11/36H01G11/46H01G11/48
CPCH01G11/34H01G11/86H01G11/36H01G11/48H01G11/46H01G11/30H01G11/24
Inventor 赵瑨云胡家朋林皓梁松张玉斌林志毅
Owner 武夷学院
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