Method for preparing conductive polymer/silsesquioxane composite electrode material

A silsesquioxane, conductive polymer technology, applied in electrolytic capacitors, circuits, capacitors, etc., can solve the problems of increasing the charge and discharge response speed, exceeding the surface charge migration rate of electrode materials, etc. The effect of circulation and low internal resistance

Inactive Publication Date: 2012-07-04
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, recent studies have found that when the dimension of the electrode material is very small, the contact surface between the electrode material and the electrolyte is greatly increased, the diffusion layer becomes thinner, and the response speed to charge and discharge will be greatly improved, even exceeding the charge transfer rate on the surface of the electrode material.

Method used

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  • Method for preparing conductive polymer/silsesquioxane composite electrode material
  • Method for preparing conductive polymer/silsesquioxane composite electrode material
  • Method for preparing conductive polymer/silsesquioxane composite electrode material

Examples

Experimental program
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Effect test

Embodiment 1

[0024] (1) Preparation of sulfonated silsesquioxane. Add 30mL of concentrated sulfuric acid into a 100mL three-neck flask, add 3g of octaphenylsilsesquioxane, and stir evenly with a magnet; slowly add 15mL of 20% oleum dropwise; after the dropwise addition, slowly raise the temperature to 90°C and keep for 6h. Filter out the sulfonated silsesquioxane with a No. 4 sand core funnel, and wash with deionized water until the filtrate is neutral. Vacuum dry at room temperature for later use. (2) Disperse the sulfonated silsesquioxane in 30mL 1mol L -1 In sulfuric acid aqueous solution, ultrasonic dispersion is uniform, and its concentration is 1.0%; (3) add aniline monomer to above-mentioned H 2 SO 4 In aqueous solution, its concentration is 0.1mol L -1 , sonicate for 1h to make the aniline monomer and the chemically modified silsesquioxane fully act; (4) After cooling the above mixed solution to 0°C, quickly add 0.684g of ammonium persulfate, stir well, and keep the mixed solut...

Embodiment 2

[0026] (1) Preparation of sulfonated silsesquioxane. Add 30mL of concentrated sulfuric acid into a 100mL three-neck flask, add 3g of octaphenylsilsesquioxane, and stir evenly with a magnet; slowly add 10mL of 30% oleum dropwise; after the dropwise addition, slowly raise the temperature to 60°C and keep for 6h. Filter out the sulfonated silsesquioxane with a No. 4 sand core funnel, and wash with deionized water until the filtrate is neutral. Vacuum dry at room temperature for later use. (2) Disperse the sulfonated silsesquioxane in 30mL 1mol L -1 In sulfuric acid aqueous solution, ultrasonic dispersion is uniform, and its concentration is 0.75%; (3) add aniline monomer to above-mentioned H 2 SO 4 In aqueous solution, its concentration is 0.1mol L -1 , sonicate for 1h to make the aniline monomer and the chemically modified silsesquioxane fully act; (4) After cooling the above mixed solution to 0°C, quickly add 0.684g of ammonium persulfate, stir well, and keep the mixed solu...

Embodiment 3

[0028] (1) Preparation of sulfonated silsesquioxane. Add 30mL of concentrated sulfuric acid into a 100mL three-necked flask, add 3g of dodecylsilsesquioxane, and stir evenly with a magnet; slowly add 8mL of chlorosulfonic acid dropwise; after the dropwise addition, keep at room temperature for 12 hours. Filter out the sulfonated silsesquioxane with a No. 4 sand core funnel, and wash with deionized water until the filtrate is neutral. Vacuum dry at room temperature for later use. (2) Disperse the sulfonated silsesquioxane in 30mL 1mol L -1 In sulfuric acid aqueous solution, ultrasonic dispersion is uniform, and its concentration is 1.0%; (3) add aniline to above-mentioned H 2 SO 4 In aqueous solution, its concentration is 0.1mol L -1, sonicate for 1h to make the aniline monomer and the chemically modified silsesquioxane fully act; (4) After cooling the above mixed solution to 0°C, quickly add 0.684g of ammonium persulfate, stir well, and keep the mixed solution at 0°C (5) ...

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Abstract

The invention relates to a method for preparing a conductive polymer / silsesquioxane composite electrode material, which comprises two reactions that: silsesquioxane with end benzene ring and sulfonating agent undergo sulfonation reaction to form a phenyl sulfonic acid group, silsesquioxane with end mercapto and oxidant undergo oxidation reaction to form a sulfonic acid group, and the silsesquioxane and an intrinsic conductive polymer monomer undergo in situ polymerization to form the composite electrode material. The method has simple process and low cost; the prepared conductive polymer nanocomposite material has good electric conductivity (more than 5S / m) and large specific surface area; and a super capacitor prepared from the electrode material has the characteristics of high specificpower, high specific energy, good recyclability and the like, and has good application prospect.

Description

technical field [0001] The invention belongs to the field of preparation of supercapacitor composite electrode materials, in particular to a preparation method of conductive polymer / silsesquioxane composite electrode materials. Background technique [0002] With the gradual depletion of petrochemical resources and the increasingly prominent environmental problems, seeking new energy has become one of the biggest challenges in the 21st century. Supercapacitors are traditional capacitors in terms of specific energy10 6 times, and the specific power is dozens of times that of the battery; it has the advantages of fast charging and discharging speed of traditional capacitors, many cycles, and large energy density of batteries. Therefore, supercapacitors have developed rapidly in the past ten years and have been used in buffer power supplies, photographic equipment, mobile phones, toys and other fields. But in order to be widely used in portable electronic products and hybrid e...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L79/02C08L79/04C08L65/00C08G73/02C08G73/06C08G61/12C08K9/04C08K5/549H01G9/042
CPCY02E60/13
Inventor 张清华李英芝夏清明赵昕罗伟强陈大俊
Owner DONGHUA UNIV
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