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MOF-based porous polyaniline electrode material, preparation method thereof and use thereof

An electrode material, polyaniline technology, applied in the field of porous polyaniline electrode materials and its preparation, can solve the problems of poor electrical conductivity, etc., and achieve the effects of good electrical conductivity, large specific surface area, and high porosity

Inactive Publication Date: 2019-10-15
XIJING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a kind of MOF-based porous polyaniline electrode material and its preparation method and application, the method solves the problem of poor electrical conductivity of the existing prepared PANI electrode material, can improve the porosity of the material, and has good electrical conductivity , larger than the capacitance

Method used

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  • MOF-based porous polyaniline electrode material, preparation method thereof and use thereof
  • MOF-based porous polyaniline electrode material, preparation method thereof and use thereof
  • MOF-based porous polyaniline electrode material, preparation method thereof and use thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0023] A method for preparing a MOF-based porous polyaniline electrode material, comprising:

[0024] (1) 0.7248g Cu(NO 3 ) 2 ·3H 2 O was dissolved in 12mL ultrapure water and stirred evenly;

[0025] (2) Add 0.4203g H 3 BTC (trimesic acid) was dissolved in 12mL of absolute ethanol and stirred for 0.5h;

[0026] (3) Mix and stir the solutions prepared in step (1) and step (2), then seal the mixture in an autoclave, heat to 110° C. for 12 hours and then centrifuge the precipitate, place the precipitate in ethanol and Cool to room temperature, centrifuge and dry in air at room temperature to obtain a blue 3,3,5-C polyhedral metal-organic framework;

[0027] (4) Disperse acetylene black (conductive agent), PVDF (polyvinylidene fluoride, binder) and 3,3,5-C polyhedral metal-organic framework in N,N-dimethylformamide (DMF) , with a mass ratio of 7:2:1, prepared into a slurry after stirring for 6 hours;

[0028] (5) Coat the prepared slurry evenly on the carbon fiber cloth (C...

Embodiment 2

[0032] The preparation method of the porous polyaniline electrode material based on MOF is basically the same as that of Example 1, the difference is that:

[0033] In step (1), Cu(NO 3 ) 2 ·3H 2 The consumption of O is 2.1744g, and the consumption of ultrapure water is 36mL;

[0034] In step (2), H 3 The dosage of BTC is 1.2609g, the dosage of absolute ethanol is 36mL, stir for 1h;

[0035] In step (3), heating to 130° C. for 15 hours;

[0036] In step (4), the mass ratio of acetylene black (conductive agent), PVDF (polyvinylidene fluoride, binder) and 3,3,5-C polyhedral metal-organic framework is 9:4:1, after stirring for 8 hours prepared as a slurry;

[0037] In step (6), H 2 SO 4 In a solution with a concentration of 1.5 mol / L and a concentration of ANI of 0.3 mol / L, the duty ratio of the applied positive pulse is 60%, and the deposition lasts for 400 s.

Embodiment 3

[0039] The preparation method of the porous polyaniline electrode material based on MOF is basically the same as that of Example 1, the difference is that:

[0040] In step (1), Cu(NO 3 ) 2 ·3H 2 The consumption of O is 1.4496g, and the consumption of ultrapure water is 24mL;

[0041] In step (2), H 3 The dosage of BTC is 0.8406g, the dosage of absolute ethanol is 24mL, stir for 1h;

[0042] In step (3), heating to 120° C. for 13 hours;

[0043] In step (4), the mass ratio of acetylene black (conductive agent), PVDF (polyvinylidene fluoride, binder) and 3,3,5-C polyhedral metal-organic framework is 8:3:1, after stirring for 7 hours prepared as a slurry;

[0044] In step (6), H 2 SO 4 In a solution with a concentration of 1.0 mol / L and a concentration of ANI of 0.2 mol / L, the duty ratio of the applied positive pulse is 55%, and the deposition lasts for 350 s.

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Abstract

The invention discloses a MOF-based porous polyaniline electrode material, a preparation method thereof and a use thereof. The method comprises the steps of: mixing an aqueous solution of copper nitrate and an ethanol solution of trimesic acid, and maintaining the temperature of the mixed solution at 110-130 degrees centigrade under high pressure to obtain a 3,3,5-C polyhedral metal-organic skeleton; preparing the 3,3,5-C polyhedral metal-organic skeleton, a conductive agent, and a binding agent with a mass ratio of 1:(7-9):(2-4) into electrode paste and coating a carbon fiber cloth with the electrode paste; putting the carbon fiber cloth in a solution containing H2SO4 and aniline, and depositing a layer of polyaniline by a unipolar pulse method to obtain the MOF-based porous polyaniline electrode material. The porous polyaniline electrode material prepared by the method has high porosity, good electrical conductivity and large specific capacitance.

Description

technical field [0001] The invention relates to an electrode material, in particular to a MOF-based porous polyaniline electrode material and its preparation method and application. Background technique [0002] Supercapacitor is a new type of environmentally friendly energy storage device between batteries and traditional capacitors. Supercapacitors have attracted much attention due to their characteristics of long cycle, fast charging and discharging, and no pollution to the environment. New high-quality capacitive electrode materials are the key to further improving capacitive performance. [0003] Polyaniline (PANI), a conductive polymer, is widely used as an electrode material due to its easy polymerization, good environmental stability, and excellent electrochemical performance. At present, the main methods of synthesizing polyaniline are: chemical oxidation method, electrochemical method and interfacial polymerization method. The PANI prepared by these methods has l...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G11/86H01G11/48H01G11/30H01G11/26H01G11/24
CPCH01G11/24H01G11/26H01G11/30H01G11/48H01G11/86Y02E60/13
Inventor 刘守法豆素勤赵金国王新元
Owner XIJING UNIV
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