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Synthesis method of MnO2 loaded 3-polyalkylthiophene

A technology of alkylthiophene and synthesis method, which is applied in the field of material chemistry to achieve the effect of stable structure and morphology control and uniform dispersion

Inactive Publication Date: 2019-08-09
上海萃励电子科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

One-step synthesis of MnO 2 There is no report on the technology of supporting iodine-doped poly-3-alkylthiophene and realizing it

Method used

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  • Synthesis method of MnO2 loaded 3-polyalkylthiophene

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Experimental program
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Effect test

Embodiment 1

[0012] Add 0.1mol / L 3-methylthiophene monomer into 50mL deionized water, add 20gL -1 KI and 2gL -1 MnI 2 , ultrasonically stirred to form an emulsion; 50mL 1.6mol / L ferric chloride aqueous solution was slowly added to the first solution, stirring was continued during the addition process, and a precipitate was obtained after standing at room temperature for 12 hours, filtered, washed and dried to obtain the following: figure 1 MnO shown 2 Loaded poly-3-alkylthiophene powder. Coat the prepared powder on the PET film with PVDF as the binder, and then evenly coat a layer of PVA / H 3 PO 4 Gel electrolyte, cut into two 5cm×8cm sheets of the same size, and use them as positive and negative electrodes respectively. When the electrolyte on the two electrodes is in a semi-dry state, paste the two electrodes face to face, and dry to obtain a full solid state. Symmetrical supercapacitor with a specific capacity of 431Fg -1 .

Embodiment 2

[0014] Add 0.2mol / L 3-hexylthiophene monomer into 50mL deionized water, add 40gL -1 KI and 10gL -1 MnI 2 , ultrasonically stirred to form an emulsion; 50mL 2mol / L ferric chloride aqueous solution was slowly added to the first solution, and the stirring was continued during the addition process. After standing at 50°C for 12 hours, a precipitate was obtained, and MnO was obtained by filtration, washing and drying. 2 Loaded poly-3-alkylthiophene powder. Coat the prepared powder on the PET film with PVDF as the binder, and then evenly coat a layer of PVA / H 3 PO 4 Gel electrolyte, cut into two 5cm×8cm sheets of the same size, and use them as positive and negative electrodes respectively. When the electrolyte on the two electrodes is in a semi-dry state, paste the two electrodes face to face, and dry to obtain a full solid state. Symmetrical supercapacitor with a specific capacity of 420Fg -1 .

Embodiment 3

[0016] Add 0.1mol / L 3-dodecylthiophene monomer into 50mL deionized water, add 30gL -1 KI and 5gL - 1 MnI 2 , ultrasonically stirred to form an emulsion; 50mL 1.8mol / L ferric chloride aqueous solution was slowly added to the first solution, stirring was continued during the addition process, and after standing at room temperature for 24 hours, a precipitate was obtained, and MnO was obtained by filtering, washing and drying. 2 Loaded poly-3-alkylthiophene powder. Coat the prepared powder on the PET film with PVDF as the binder, and then evenly coat a layer of PVA / H 3 PO 4 Gel electrolyte, cut into two 5cm×8cm sheets of the same size, and use them as positive and negative electrodes respectively. When the electrolyte on the two electrodes is in a semi-dry state, paste the two electrodes face to face, and dry to obtain a full solid state. Symmetrical supercapacitor with a specific capacity of 479Fg -1 .

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Abstract

The invention provides a synthesis method of MnO2 loaded 3-polyalkylthiophene. The method is characterized by including the following steps of adding a 3-alkylthiophene monomer to deionized water, adding KI and MnI2 to be ultrasonically mixed to form an emulsion, slowly adding a ferric trichloride water solution to the first solution, continuously conducting mixing in the adding process, conducting the standing reaction for 12-24 hours at the temperature from the room temperature to 50 DEG C to obtain precipitates, and conducting filtering, washing and drying to obtain the MnO2 loaded 3-polyalkylthiophene powder. All the raw materials are common cheap chemicals, the green process is adopted for one-step synthesis, the MnO2 loaded I2-doped 3-polyalkylthiophene is synthesized through an in-situ one-step method at a normal temperature, dispersing is even, the structural morphology of the material can be stably controlled, and the material can be used as an electrode material of a super capacitor.

Description

technical field [0001] The invention belongs to the technical field of material chemistry and relates to a MnO 2 Synthetic method of loaded poly-3-alkylthiophene. Background technique [0002] Polythiophene is a typical conjugated conductive polymer material, which can be used in electrochromic, secondary batteries, supercapacitors and other fields. By substituting the alkyl group on the 3-position of the thiophene ring, the stability of the derivative is enhanced, and better cycle performance can be obtained when used as a supercapacitor material. The conductivity of intrinsic poly-3-alkylthiophene is very low, resulting in lower specific capacity and power capacity, and the conductivity can be greatly improved by iodine doping. The performance of conductive polymer electrodes in chemical capacitors can be improved by compounding them with metal oxide nanoparticles. Manganese oxide has the advantages of low price, natural environmental protection, and high specific capac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G61/12C08K3/22H01G11/48
CPCC08G61/126C08G2261/11C08G2261/3223C08K3/22C08K2003/2262H01G11/48Y02E60/13
Inventor 陆嘉君
Owner 上海萃励电子科技有限公司
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