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Method for preparing sulfonated graphene-polyaniline composite electrode material

A technology of sulfonated graphene and composite electrodes, which is used in the manufacture of hybrid capacitor electrodes and hybrid/electric double layer capacitors, etc. stable effect

Inactive Publication Date: 2017-01-04
WUXI MINGSHENG STRONG BLOWER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, carbon materials with large specific surface area and good electrical conductivity are used, but the specific capacitance value of carbon materials is not high; transition metal oxides and conductive polymers have very high capacitance values, but the resistance value will change greatly during use, and make the system unstable

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A preparation method of sulfonated graphene-polyaniline composite electrode material, comprising:

[0024] (1) Dissolve graphite oxide in deionized water, add sodium lauryl sulfate, and ultrasonically stir for 4 hours, graphene oxide: the mass ratio of sodium dodecylbenzenesulfonate is 1:100;

[0025] (2) heating up to 100°C, adding hydrazine monohydrate to react for 36 hours to obtain black deposits;

[0026] (3) filter and vacuum-dry at 90°C to obtain sulfonated graphene;

[0027] (4) sulfonated graphene and ammonium persulfate are dissolved in the hydrochloric acid solution of 2mol / L with mass ratio 1:5, as aqueous phase;

[0028] (5) Aniline is dissolved in chloroform as an oil phase;

[0029] (6) water phase and oil phase are mixed with sulfonated graphene: aniline mass ratio is 1:10, reacts at 5 ℃ for 36 hours, obtains green product;

[0030] (7) Wash the green product until it is colorless, and dry it in vacuum to obtain the sulfonated graphene-polyaniline com...

Embodiment 2

[0032] A preparation method of sulfonated graphene-polyaniline composite electrode material, comprising:

[0033] (1) Dissolve graphite oxide in deionized water, add sodium lauryl sulfate, and ultrasonically stir for 4 hours, graphene oxide: the mass ratio of sodium dodecylbenzenesulfonate is 1:20;

[0034] (2) heating up to 90°C, adding hydrazine monohydrate to react for 12 hours to obtain black deposits;

[0035] (3) filter and vacuum-dry at 70°C to obtain sulfonated graphene;

[0036] (4) sulfonated graphene and ammonium persulfate are dissolved in the hydrochloric acid solution of 0.5mol / L with mass ratio 1:3, as aqueous phase;

[0037] (5) Aniline is dissolved in chloroform as an oil phase;

[0038] (6) water phase and oil phase are mixed with sulfonated graphene: aniline mass ratio is 1:1, reacts 12 hours at 0 ℃, obtains green product;

[0039] (7) Wash the green product until it is colorless, and dry it in vacuum to obtain the sulfonated graphene-polyaniline composit...

Embodiment 3

[0041] A preparation method of sulfonated graphene-polyaniline composite electrode material, comprising:

[0042] (1) Dissolve graphite oxide in deionized water, add sodium lauryl sulfate, and ultrasonically stir for 2 hours, graphene oxide: the mass ratio of sodium dodecylbenzenesulfonate is 1:40;

[0043] (2) heating up to 95° C., adding hydrazine monohydrate and reacting for 12 hours to obtain black deposits;

[0044] (3) filter and vacuum-dry at 80° C. to obtain sulfonated graphene;

[0045] (4) sulfonated graphene and ammonium persulfate are dissolved in the hydrochloric acid solution of 1mol / L with mass ratio 1:4, as aqueous phase;

[0046] (5) Aniline is dissolved in chloroform as an oil phase;

[0047] (6) the water phase and the oil phase are mixed with sulfonated graphene: the aniline mass ratio is 1:5, and reacted for 18 hours at 0-5° C. to obtain a green product;

[0048] (7) Wash the green product until it is colorless, and dry it in vacuum to obtain the sulfon...

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Abstract

The invention discloses a method for preparing a sulfonated graphene-polyaniline composite electrode material. Electrochemical testing proves that when scanning rate is 2 mV / S, the specific capacitance value of the composite material can reach 962 F / g, the electrode energy density of the composite material can reach 68.86 Wh / Kg, and therefore the composite electrode material is suitable for super capacitors. The retention rate of the specific capacitance value is 92.8% after 1000 times of circulation.

Description

technical field [0001] The invention relates to the technical field of new energy, in particular to a preparation method of a sulfonated graphene-polyaniline composite electrode material. Background technique [0002] As time goes by, the population will inevitably gradually increase, and the number of people holding cars will inevitably increase exponentially. Then, with the increase of cars, it will inevitably bring about three major problems, energy problems, greenhouse effect problems caused by carbon dioxide emissions, and air quality problems. At present, the best way to deal with these problems is to cancel or replace petroleum-fueled vehicles, so hybrid electric vehicles (HEV), pure electric vehicles (EV) and fuel cell vehicles (FCV) have emerged as the times require. However, the core component of these electric vehicles is the power supply, so the research on the power supply has become a research hotspot. The current commercialized chemical batteries are difficu...

Claims

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Application Information

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IPC IPC(8): H01G11/86H01G11/24H01G11/36H01G11/48
CPCY02E60/13H01G11/86H01G11/24H01G11/36H01G11/48
Inventor 张达明
Owner WUXI MINGSHENG STRONG BLOWER
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