P-type doped poly (3,4-ethylene dioxy thiophen ), preparation thereof and use

A technology of ethylenedioxythiophene and dopant, which is applied in the direction of organic material conductors, electrolytic capacitors, electrical components, etc., and can solve the problems of restricting the wide use of ionic liquid capacitor electrolyte and the high price of ionic liquids

A technology of ethylenedioxythiophene and dopant, which is applied in the direction of organic material conductors, electrolytic capacitors, electrical components, etc., and can solve the problems of restricting the wide use of ionic liquid capacitor electrolyte and the high price of ionic liquids

CN101307134AInactive Publication Date: 2008-11-19NANJING UNIV
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  • P-type doped poly (3,4-ethylene dioxy thiophen ), preparation thereof and use
  • P-type doped poly (3,4-ethylene dioxy thiophen ), preparation thereof and use
  • P-type doped poly (3,4-ethylene dioxy thiophen ), preparation thereof and use

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Embodiment 1. the preparation of poly(3,4-ethylenedioxythiophene)

[0022] N-methylimidazole is synthetically prepared by changing the reaction temperature on the basis of the original patent method [see: Graf, Fritz.; Hupfer, Leopold.79-2940709, 19791008. Eu Pat, 19810416.]. 290 grams (2 moles) of 40% glyoxal and 150 grams (2.2 moles l) of 40% formaldehyde were stirred at room temperature, fully mixed, and 248 grams (2.2 moles) of 25% methylamine and 164 grams (2.6 moles) of 25% ammonia were added dropwise. Mole) of the mixture, the temperature is controlled at 60 ~ 65 ℃. After about 15 minutes of dripping, the reaction was continued for about 5 hours at a reaction temperature of 65°C. Ammonia and water were distilled off under reduced pressure. The remaining dark brown liquid is then distilled under reduced pressure by an oil pump, and the fraction (ie product) at 62-65°C (4mmHg) is collected, which is a slightly light yellow transparent liquid. Atmospheric pressur...

Embodiment 2

[0026] Embodiment 2. the preparation of poly(3,4-ethylenedioxythiophene)

[0027] Prepare poly(3,4-ethylenedioxythiophene) according to the steps of Example 1, but the concentration of 3,4-ethylenedioxythiophene is 0.05mol.L -1 , obtain the similar result of embodiment 1.

Embodiment 3

[0028] Embodiment 3. the preparation of poly(3,4-ethylenedioxythiophene)

[0029] Prepare poly(3,4-ethylenedioxythiophene) according to the steps of Example 1, but the concentration of 3,4-ethylenedioxythiophene is 0.20mol.L -1 , obtain the similar result of embodiment 1.

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Abstract

The invention relates to poly (3, 4-ethylenedioxy thiophene) conductive polymer, which is p-type doped polymer prepared by electropolymerization of 3, 4-ethylenedioxy thiophene monomer, adoption of 1-methyl-3-butyl imidazole tetrafluoborate as electrolyte and dopant, and utilization of the potentiostatic method. The structure of the poly (3, 4-ethylenedioxy thiophene) conductive polymer is a porous structure the surface of which is formed by accumulation of a plurality of particles between 800 nanometers and about 2 micrometer. The specific capacitance of the poly (3, 4-ethylenedioxy thiophene) conductive polymer reaches 113 to 158 F / g, and the cyclical stability can reach 70000 times. The invention discloses a method for manufacturing the same.

Description

technical field [0001] The invention relates to poly(3,4-ethylenedioxythiophene), its synthesis method and its application in supercapacitor electrode materials. Background technique [0002] With the rapid growth of population and the rapid development of social economy, the gradual shortage of resources and energy, and the deteriorating ecological environment, human beings will rely more on clean and renewable new energy. In recent years, the demand for higher power density in many energy storage device applications has exceeded the standard design capabilities of current state-of-the-art batteries. Generally, in addition to requiring low cost and long life, it is more desirable to have a higher energy density per unit weight or unit volume (Wh / kg) or a maximum power density (W / kg). Electrochemical capacitors (EC), especially supercapacitors (ultracapacitors), have unique advantages in terms of power characteristics. Although their energy density is lower than that of re...

Claims

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Application Information

Patent Timeline
19 Nov 2008
Publication
CN101307134A
IPC
C08G61/12; H01B1/12; H01G9/042
CPC
H01G11/56; Y02E60/13
Inventors
刘珂珂; 薛荣