A flexible composite electrode, its preparation method and application
A composite electrode and flexible technology, applied in circuits, electrical components, photovoltaic power generation, etc., can solve the problem that graphene composite electrode materials cannot be prepared in large areas.
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[0035] A method for preparing a flexible composite electrode, comprising the steps of:
[0036] S1. Mix pyridine, ferric salt catalyst and alcohol solvent evenly to obtain a prepolymer mixed liquid.
[0037] The molar ratio of pyridine:ferric salt catalyst:alcohol solvent in the prepolymer mixed liquid is (0.95-1.05):(9.5-10.5):(95-105). The ferric salt catalyst may be ferric p-toluenesulfonate or ferric chloride, and the alcohol solvent may be n-butanol. S2. Add graphene to the prepolymer mixed solution prepared in step S1, and evenly coat the substrate, heat and dry in an anhydrous oxygen environment, and obtain a dry mixture containing graphene, pyridine, and ferric salt catalyst. The substrate; the temperature of heating and drying is not strictly required, as long as it can promote the evaporation of the alcohol solvent.
[0038] S3. Put the dried substrate prepared in step S2 into a reaction kettle dropwise added with 3,4-ethylenedioxythiophene monomer, and perform gas...
Embodiment 1
[0046] like figure 1 As shown, the preparation method of the flexible composite electrode of the present embodiment includes the following steps:
[0047] S1, mix pyridine, ferric salt catalyst and alcoholic solvent uniformly, obtain 100g prepolymer mixed solution; Wherein pyridine: ferric salt catalyst (ferric p-toluenesulfonate): alcoholic solvent (n-butanol) mole The ratio is 1:10:100.
[0048] S2, adding 50g of graphene to the prepolymer mixed solution prepared in step S1, and uniformly coating it on the substrate, heating and drying in an anhydrous oxygen environment, to obtain a catalyst containing graphene, pyridine, and ferric salt dry substrate;
[0049] S3. Put the dry substrate prepared in step S2 into the reaction kettle dropwise added with 3,4-ethylenedioxythiophene monomer, and heat the reaction kettle to 50-60°C with a flow rate of 0.5-1m 3 / h N 2 The gas is subjected to a gas phase polymerization reaction to obtain a flexible composite electrode;
[0050] ...
Embodiment 2
[0052] The preparation method of the flexible composite electrode of this embodiment comprises the following steps:
[0053] S1. Mix pyridine, ferric salt catalyst and alcohol solvent evenly to obtain 100g prepolymer mixed liquid; wherein pyridine: ferric salt catalyst (ferric chloride): alcohol solvent (n-butanol) molar ratio It is 0.95:10.5:95.
[0054] S2, adding 60g of graphene to the prepolymer mixed solution prepared in step S1, and uniformly coating on the substrate, heating and drying in an anhydrous oxygen environment, to obtain a catalyst containing graphene, pyridine, and ferric salt dry substrate;
[0055] S3. Put the dried substrate prepared in step S2 into the reaction kettle dropwise added with 3,4-ethylenedioxythiophene monomer, and heat the reaction kettle to 40-50°C with a flow rate of 0-0.5m 3 / h of inert gas for gas-phase polymerization to obtain flexible composite electrodes;
[0056] S4. Cleaning the flexible composite electrode obtained in step S3 wit...
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