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Synthetic method of manganese oxide-loaded polypyrrole nanotube

A technology of polypyrrole nanotube and manganese oxide is applied in the field of material chemistry to achieve the effects of simple process, stable structure and morphology control, and cheap raw materials

Inactive Publication Date: 2018-08-07
合肥萃励新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The simultaneous synthesis of manganese oxide and polypyrrole in one step and the modification of manganese oxide nanoparticles on polypyrrole nanotubes have not been reported so far

Method used

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  • Synthetic method of manganese oxide-loaded polypyrrole nanotube
  • Synthetic method of manganese oxide-loaded polypyrrole nanotube

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Dissolve 0.001mol of MnCl2 and 0.004mol of pyrrole monomer in 50mL of acidic aqueous solution (pH=1), add 0.0005mol of methyl orange; dropwise add 50mL of aqueous solution containing 0.01mol of ammonium persulfate, and continue stirring for 8 hours at room temperature , a black precipitate was obtained after the reaction. Alternately wash with deionized water and ethanol. After each washing, use centrifuge sedimentation or suction filtration equipment to filter. The filtered product is redispersed in deionized water or ethanol. Repeatedly filter until the pH of the filtrate is 7. Place in a vacuum oven at 50°C Dry to obtain manganese oxide-loaded polypyrrole nanotubes, and the SEM photos are as follows: figure 1 shown.

[0015] 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 t...

Embodiment 2

[0017] 0.005mol MnCl and 0.02mol pyrrole monomer were dissolved in 50mL acidic aqueous solution (pH=1), and 0.0005mol methylene blue was added; 50mL of aqueous solution containing 0.05mol ammonium persulfate was added dropwise thereto, and the stirring reaction was continued for 8 hours at room temperature. A black precipitate was obtained. Alternately wash with deionized water and ethanol. After each washing, use centrifuge sedimentation or suction filtration equipment to filter. The filtered product is redispersed in deionized water or ethanol. Repeatedly filter until the pH of the filtrate is 7. Place in a vacuum oven at 50°C drying to obtain manganese oxide-loaded polypyrrole nanotubes.

[0018] 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 ...

Embodiment 3

[0020] Dissolve 0.003mol MnSO4 and 0.02mol pyrrole monomer in 50mL acidic aqueous solution (pH=1), add 0.0005mol methyl orange; dropwise add 50mL aqueous solution containing 0.04mol potassium persulfate, and continue stirring at 60°C for 12 Hours, a black precipitate was obtained after the reaction. Alternately wash with deionized water and ethanol. After each washing, use centrifuge sedimentation or suction filtration equipment to filter. The filtered product is redispersed in deionized water or ethanol. Repeatedly filter until the pH of the filtrate is 7. Place in a vacuum oven at 60°C drying to obtain manganese oxide-loaded polypyrrole nanotubes.

[0021] 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 elec...

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Abstract

The invention belongs to the technical field of material chemistry and relates to a chemical preparation method of a manganese oxide-loaded polypyrrole nanotube. The method is characterized by comprising the steps: dissolving water soluble divalent manganese salt and a pyrrole monomer in an acidic aqueous solution and adding a template; dropwise adding a pyrrole aqueous solution or hydrogen peroxide, continuously stirring the mixture to react to obtain a black precipitate; and washing and drying the mixture to obtain the manganese oxide-loaded polypyrrole nanotube powder. The raw materials arelow in price, the manganese oxide good in crystallization can be uniformly modified and loaded to the polypyrrole nanotube at constant temperature, the process is simple, and the structure and the shape of the material are stably controlled.

Description

technical field [0001] The invention belongs to the technical field of material chemistry and relates to a method for synthesizing manganese oxide-loaded polypyrrole nanotubes. Background technique [0002] Polypyrrole is currently the most studied conjugated polymer material in the field of supercapacitors. It has good electrical activity in aprotic, aqueous, and non-aqueous electrolytes. Polypyrrole nanotubes have a very high specific surface area and are the most promising. One of the supercapacitor materials. Manganese oxide nanoparticles are also a cheap and high-capacitance supercapacitor material. The modification of manganese oxide nanoparticles on polypyrrole nanotubes can produce a synergistic effect, with good specific capacity and charge-discharge cycle performance. [0003] In the prior art, the synthesis of oxide nanoparticle-modified polymer materials is usually achieved by a two-step method: first, oxide nanoparticles are synthesized, and then the oxide nano...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G73/06C01G45/02C08J9/28C09D127/16C09D7/62C09D129/04C09D7/61C08J7/04H01G11/24H01G11/30H01G11/46H01G11/48C08L67/02
CPCC01G45/02C08G73/0611C08J7/0427C08J9/28C08J2201/0502C08J2367/02C08J2379/04C08J2427/16C08J2429/04C08K2003/329C09D7/61C09D7/62C09D7/70C09D127/16C09D129/04H01G11/24H01G11/30H01G11/46H01G11/48Y02E60/13
Inventor 汪元元
Owner 合肥萃励新材料科技有限公司
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