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Porous polyaniline-doped nano fiber material with three-dimensional structure as well as preparation method and application of porous polyaniline-doped nano fiber material

A three-dimensional structure, nanofiber technology, used in the manufacture of hybrid/electric double-layer capacitors, hybrid capacitor electrodes, etc., to achieve good cycle life, mild reaction conditions, and high specific capacitance.

Inactive Publication Date: 2015-01-07
GUANGXI NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition, although the materials reported in the above patents have good capacitance when applied to supercapacitors, this is due to the addition of graphene with good conductivity in the composite material.

Method used

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  • Porous polyaniline-doped nano fiber material with three-dimensional structure as well as preparation method and application of porous polyaniline-doped nano fiber material
  • Porous polyaniline-doped nano fiber material with three-dimensional structure as well as preparation method and application of porous polyaniline-doped nano fiber material
  • Porous polyaniline-doped nano fiber material with three-dimensional structure as well as preparation method and application of porous polyaniline-doped nano fiber material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] 1) Dissolve 4.0 mL of aniline in 100 mL of 1.0 mol / L hydrochloric acid solution, and magnetically stir for 30 min at a speed of 60 r / min to obtain solution A;

[0037] 2) Under the stirring speed of 60r / min, slowly add 4.0mL of 0.05wt% Nafion ethanol solution (V AN :V Nafion =100:1), the dropping rate is 2.0mL / min, and the magnetic stirring is 20min to obtain solution B;

[0038] 3) Under the stirring speed of 60r / min, add MnO to the solution B obtained in step 2) 2 (n AN :n MnO2 =1:1), at room temperature, magnetic stirring for 12h to obtain latex liquid C;

[0039] 4) Suction and filter the latex liquid C, collect the product (ie filter cake), and wash the product with ethanol, acetone and double distilled water in sequence until the filtrate is colorless and NaOH does not detect Mn 2+ ion;

[0040] 5) Dry the washed product in vacuum at 60° C. for 24 hours to obtain dark green powder, namely Nafion-doped polyaniline nanofiber material (hereinafter referred to as PANI-Nafi...

Embodiment 2

[0061] 1) Dissolve 4.0 mL of aniline in 100 mL of 1.0 mol / L hydrochloric acid solution, and magnetically stir for 30 min at a speed of 60 r / min to obtain solution A;

[0062] 2) Under the stirring speed of 60r / min, add 4.0 mL of the ethanol solution of sodium lauryl sulfate (V) to the solution A obtained in step 1). AN :V surf =1:1), the dropping rate is 0.25~2.5mL / min, and the magnetic stirring is 30min to obtain solution B;

[0063] 3) Under a stirring speed of 100r / min, slowly add MnO to the solution B obtained in step 2) 2 (n AN :n MnO2 =1:2), magnetically stirred at 15°C for 8 hours to obtain latex liquid C;

[0064] 4) Suction the latex liquid C, collect the product (ie filter cake), and wash the product with ethanol, acetone and double distilled water in sequence until the filtrate is colorless, and NaOH does not detect Mn 2+ ion;

[0065] 5) Vacuum drying the washed product at 50° C. for 24 hours to obtain dark green powder, which is the porous three-dimensional structure d...

Embodiment 3

[0068] 1) Dissolve 4.0 mL of freshly distilled aniline (ie, aniline collected by distillation under reduced pressure) in 100 mL of 1.5 mol / L hydrochloric acid solution, and magnetically stir at a speed of 50 r / min for 25 min to obtain solution A;

[0069] 2) Under the stirring speed of 80r / min, add 4.0 mL of ethanol solution of sodium lauryl sulfate (V) to the solution A obtained in step 1). AN :V surf =1:1), the dropping rate is 0.25~2.5mL / min, and the magnetic stirring is 30min to obtain solution B;

[0070] 3) Under the stirring speed of 100r / min, slowly add ammonium persulfate (n AN :n Ammonium persulfate =1:0.5), magnetically stirred at 30°C for 24h to obtain latex liquid C;

[0071] 4) Suction the latex liquid C, collect the product (ie filter cake), and wash the product with ethanol, acetone and double distilled water in sequence until the filtrate is colorless and N a OH cannot detect Mn 2+ ion;

[0072] 5) Vacuum drying the washed product at 60° C. for 20 hours to obtain ...

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Abstract

The invention discloses a porous polyaniline-doped nano fiber material with a three-dimensional structure, and a preparation method and application of the porous polyaniline-doped nano fiber material. The preparation method of the fiber material comprises the following steps: (1) dissolving an aniline monomer into an inorganic protonic acid to obtain a solution A; (2) adding a surfactant into the solution A, and uniformly dispersing to obtain a solution B; (3) adding an oxidizing agent into the solution B, and performing polymerization reaction to obtain a latex solution C, wherein the weight ratio of a raw material namely the aniline monomer to the oxidizing agent is 1:(0.5-2); and (4) collecting a product in the latex solution C, washing, and drying to obtain the porous polyaniline-doped nano fiber material with the three-dimensional structure. The polyaniline-doped nano fiber material prepared by using the method disclosed by the invention is regular in morphology and uniform in hole, and has a relatively large specific surface area and high specific capacitance; and when the polyaniline-doped nano fiber material is applied to a super-capacitor, the super-capacitor has a relatively high specific capacitance value and good recycling life.

Description

Technical field [0001] The invention relates to a nanofiber material, in particular to a doped polyaniline nanofiber material with a porous three-dimensional structure, and a preparation method and application thereof. Background technique [0002] Supercapacitors, also known as electrochemical capacitors, are a new type of electrochemical energy storage device. It has the characteristics of high power density, strong charge retention, long cycle life, good safety performance and environmental friendliness. These advantages make supercapacitors have broad application prospects in electronic aviation, national defense and other fields. [0003] Supercapacitors can be divided into electric double-layer capacitors and Faraday quasi-capacitors according to the mechanism of storing charges. The electrode materials mainly include conductive polymers, carbon materials and metal oxides. Among them, compared to carbon materials and noble metal oxides, conductive polymers have easy-to-obt...

Claims

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Application Information

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IPC IPC(8): D01F6/76C08G73/02H01G11/48H01G11/86
CPCY02E60/13
Inventor 钟新仙黄寒星李庆余王红强冯崎鹏黄有国林有铖
Owner GUANGXI NORMAL UNIV
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