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Method for synthesizing RuO2-PPy-RGO ternary supercapacitor material

A synthesis method and supercapacitor technology, applied in the field of material chemistry, can solve the problems of graphene dispersion difficulties and difficult composite materials, and achieve the effects of stable structure and morphology control, high electrical conductivity and high specific capacitance.

Inactive Publication Date: 2019-08-09
太仓萃励新能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is difficult to disperse graphene in the process, and it is difficult to obtain well-dispersed composite materials by traditional methods

Method used

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  • Method for synthesizing RuO2-PPy-RGO ternary supercapacitor material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Dissolve 0.08mol / L pyrrole monomer in 50mL deionized water, add 3gL -1 Graphite oxide was stirred ultrasonically to form a sol, and 40KI and 10gL -1 RuI 3 Dissolve in another 50mL deionized water solution, slowly add to the first sol to obtain a mixed solution A, continue to stir and react for 12 hours, add 50mL aqueous solution containing 0.8mol / L ammonium persulfate, and keep stirring during the addition , after stirring and reacting at 40°C for 12 hours, a precipitate was obtained, which was filtered, washed and dried to obtain the following figure 1 Shown RuO 2 -PPy-RGO ternary supercapacitor material 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 obta...

Embodiment 2

[0014] Dissolve 0.2mol / L pyrrole monomer in 50mL deionized water, add 0.4gL -1 Graphite oxide was stirred ultrasonically to form a sol, and 20KI and 2gL -1 RuI 3 Dissolve in another 50mL deionized water solution, slowly add to the first sol to obtain a mixed solution A, continue stirring and reacting for 6 hours, add 50mL aqueous solution containing 1.6mol / L sodium persulfate, and continue stirring during the addition , after stirring at room temperature for 24 hours, a precipitate was obtained, which was filtered, washed and dried to obtain RuO 2 -PPy-RGO ternary supercapacitor material 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. Sy...

Embodiment 3

[0016] Dissolve 0.1mol / L pyrrole monomer in 50mL deionized water, add 2gL -1 Graphite oxide was stirred ultrasonically to form a sol, and 30KI and 5gL -1 RuI 3 Dissolve in another 50mL deionized water solution, slowly add to the first sol to obtain a mixed solution A, continue to stir and react for 10 hours, add 50mL aqueous solution containing 1mol / L potassium persulfate, and continue to stir during the addition process, After stirring and reacting at room temperature for 12 hours, a precipitate was obtained, which was filtered, washed and dried to obtain RuO 2 -PPy-RGO ternary supercapacitor material 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 s...

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Abstract

The invention relates to a method for synthesizing a RuO2-PPy-RGO ternary supercapacitor material. The RuO2-PPy-RGO ternary supercapacitor material is synthesized by using RuI3 raw materials skillfully, I- Ions are utilized to reduce graphite oxide to obtain RGO, Ru3+ and pyrrole monomers are attached to RGO, the RuO2-PPy-loaded graphene is obtained by oxidation, the generated I2 acts as polypyrrole dopant, the structural morphology of the material is controlled stably, and high conductivity, high specific capacitance and good cycle performance are achieved.

Description

technical field [0001] The invention belongs to the technical field of material chemistry and relates to a RuO 2 -Synthetic method of PPy-RGO ternary supercapacitor material. Background technique [0002] Among conductive polymers, polypyrrole is considered to be one of the most promising electrode materials for positive electrodes of type I supercapacitors and type II supercapacitors, and has good electrical activity in aprotic, aqueous, and nonaqueous electrolytes. The conductivity of intrinsic polypyrrole is very low, and the conductivity can be greatly improved by iodine doping, and the specific capacity and power capacity can be improved. The performance of polypyrrole electrodes in chemical capacitors can be improved by compounding with metal oxide nanoparticles or carbon materials. Ruthenium oxide (RuO 2 ) has a very high theoretical pseudocapacitance, good electrochemical reversibility, good cycle performance, and is the most potential oxide supercapacitor materia...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G11/48H01G11/30H01G11/32H01G11/86
CPCH01G11/30H01G11/32H01G11/48H01G11/86Y02E60/13
Inventor 陆嘉君
Owner 太仓萃励新能源科技有限公司
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