Polypyrrole-phosphorus molybdenum oxide supercapacitor material and preparation method thereof

A supercapacitor and polypyrrole technology, applied in the manufacture of hybrid/electric double layer capacitors, hybrid capacitor electrodes, etc., can solve the problem of poor rate performance and cycle stability of supercapacitors, unstable electrochemical properties of the matrix, poor electrical conductivity of supercapacitors, etc. problems, to achieve the effect of increasing double layer capacitance and pseudocapacitance, improving cycle stability and service life, and improving electrochemical stability

Active Publication Date: 2020-01-17
绍兴市梓昂新材料有限公司
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  • Abstract
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Problems solved by technology

[0006] In view of the deficiencies in the prior art, the present invention provides a polypyrrole-phosphorus molybdenum oxide supercapacitor material and its preparation method, which solves the problem that the capacitance of the current organic polymer electrode supercapacitor is small and the electrochemical performance of the matrix is ​​unstable. It leads to the problems of poor rate performance and cycle stability of supercapacitors, and at the same time solves the problems of high cost of noble metal oxide supercapacitors, poor conductivity, low specific capacity and energy density of non-noble metal oxide supercapacitors

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  • Polypyrrole-phosphorus molybdenum oxide supercapacitor material and preparation method thereof
  • Polypyrrole-phosphorus molybdenum oxide supercapacitor material and preparation method thereof

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preparation example Construction

[0024] A preparation method of polypyrrole-phosphorus molybdenum oxide supercapacitor material comprises the following steps:

[0025] (1) Preparation of 1,3,6,8-tetrakis(4-carboxyphenyl)pyrene modified PMo 12 o 40 -MOFs material: add 200-500mL of distilled water and 35-40 parts of phosphomolybdic acid to the hydrothermal automatic reaction kettle and stir evenly until the solid is dissolved, then add 400-800mL of ethylene glycol and 17-20 parts of 1,3,6,8 -Tetrakis(4-carboxyphenyl)pyrene, heat the temperature of the reactor to 140-150°C, stir the reaction at a constant speed for 5-8h, cool the material to room temperature after the reaction, remove the solvent by filtration to obtain a solid product, and use an appropriate amount of distilled water to dry Wash with water and ethanol to completely remove reaction impurities, and place in a blast drying oven and heat to 55-65°C to dry to obtain 1,3,6,8-tetrakis(4-carboxyphenyl)pyrene modified PMo 12 o 40 -MOFs materials.

...

Embodiment 1

[0029] (1) Preparation of 1,3,6,8-tetrakis(4-carboxyphenyl)pyrene modified PMo 12 o 40 -MOFs material: Add 200mL of distilled water and 35 parts of phosphomolybdic acid to the hydrothermal automatic reaction kettle and stir evenly until the solid is dissolved, then add 400mL of ethylene glycol and 17 parts of 1,3,6,8-tetrakis(4-carboxybenzene) Pyrene, the temperature of the reactor was heated to 140°C, and the reaction was stirred at a constant speed for 5 hours. After the reaction, the material was cooled to room temperature, and the solvent was removed by filtration to obtain a solid product. Heated to 55°C in an air drying oven to obtain 1,3,6,8-tetrakis(4-carboxyphenyl)pyrene modified PMo 12 o 40 -MOFs material component 1.

[0030] (2) Preparation of Co-P 3 MoO 6 -C Composite material: Weigh 22 parts of cobalt nitrate hexahydrate and 1,3,6,8-tetrakis(4-carboxyphenyl)pyrene modified PMo prepared in the above step (1) 12 o 40 -MOFs material component 1 was added to a...

Embodiment 2

[0033] (1) Preparation of 1,3,6,8-tetrakis(4-carboxyphenyl)pyrene modified PMo 12 o 40 -MOFs material: Add 300mL of distilled water and 36 parts of phosphomolybdic acid to the hydrothermal automatic reaction kettle and stir evenly until the solid is dissolved, then add 600mL of ethylene glycol and 18 parts of 1,3,6,8-tetrakis(4-carboxybenzene) Pyrene, the temperature of the reactor was heated to 140°C, and the reaction was stirred at a constant speed for 5 hours. After the reaction, the material was cooled to room temperature, and the solvent was removed by filtration to obtain a solid product. Heated to 55°C in an air drying oven to obtain 1,3,6,8-tetrakis(4-carboxyphenyl)pyrene modified PMo 12 o 40 -MOFs material component 2.

[0034] (2) Preparation of Co-P 3 MoO 6 -C Composite material: Weigh 23 parts of cobalt nitrate hexahydrate and 1,3,6,8-tetrakis(4-carboxyphenyl)pyrene modified PMo prepared in the above step (1) 12 o 40 -MOFs material component 2 was added to a...

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Abstract

The invention relates to the technical field of phosphorus molybdenum oxide supercapacitor materials, and discloses a polypyrrole-phosphorus molybdenum oxide supercapacitor material and a preparationmethod thereof. The polypyrrole-phosphorus molybdenum oxide supercapacitor material comprises the following formula raw materials of phosphomolybdic acid, 1, 3, 6, 8-tetra (4-carboxybenzene) pyrene, cobalt nitrate hexahydrate, pyrrole and an initiator. According to the polypyrrole-phosphorus molybdenum oxide supercapacitor material and the preparation method thereof, the cobalt-doped phosphorus molybdenum oxide has a stable regular octahedral conical structure, so that the electrochemical stability of the phosphorus molybdenum oxide is improved; the cobalt-doped phosphorus molybdenum oxide hasgood conductivity and electrical conductivity, so that the transmission and migration of charges between the electrolyte and the super capacitor are promoted, and the double-layer capacitance and pseudocapacitance of the supercapacitor are greatly increased; the polypyrrole has the excellent conductivity, and a conductive network formed on the surface of the phosphorus molybdenum oxide provides the active sites, so that the charge transfer between the phosphorus molybdenum oxide and an electrolyte is promoted, and the capacitance and energy density of the supercapacitor are improved.

Description

technical field [0001] The invention relates to the technical field of phosphorus molybdenum oxide supercapacitor materials, in particular to a polypyrrole-phosphorus molybdenum oxide supercapacitor material and a preparation method thereof. Background technique [0002] A supercapacitor is a new type of energy storage device between a traditional capacitor and a rechargeable battery. It has the characteristics of fast charging and discharging of a capacitor and the energy storage characteristics of a battery. This is used to store electrical energy and chemical energy. When the electrode is in contact with the electrolyte, under the action of Coulomb force and intermolecular force, a stable and opposite double-layer charge appears at the solid-liquid interface. The electric double layer capacitor is based on the electrode material. Different, can be divided into carbon electrode supercapacitors, organic polymer electrode supercapacitors and metal oxide supercapacitors. [...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G11/24H01G11/30H01G11/46H01G11/48H01G11/86C08G73/06
CPCC08G73/0611H01G11/24H01G11/30H01G11/46H01G11/48H01G11/86Y02E60/13
Inventor 陈丰
Owner 绍兴市梓昂新材料有限公司
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