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Supercapacitor electrode composite material and preparation method thereof

A technology of supercapacitors and composite materials, which is applied in the fields of hybrid capacitor electrodes, hybrid/electric double layer capacitor manufacturing, nanotechnology for materials and surface science, etc. Electrode materials of capacitors, etc., to achieve the effect of strong conductivity stability, good electrochemical energy storage performance, and good capacity retention rate

Inactive Publication Date: 2019-08-09
UNIV OF ELECTRONIC SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

It can be seen that the conductivity of the porous coordination polymer / conductive polymer composite constructed in this article changes greatly with the influence of the external oxidizing medium, and has gas-sensing properties, which is suitable for the construction of gas-sensing sensors, but its Poor conductivity stability will seriously affect the capacity retention rate during electrochemical cycling, so it is not suitable as an electrode material for supercapacitors

Method used

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  • Supercapacitor electrode composite material and preparation method thereof
  • Supercapacitor electrode composite material and preparation method thereof
  • Supercapacitor electrode composite material and preparation method thereof

Examples

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Embodiment 1

[0050] This embodiment provides a method for preparing a supercapacitor electrode composite material, which specifically includes the following steps:

[0051] (1) Preparation of nickel trimesate:

[0052] First fully dissolve 1.27g of nickel nitrate hexahydrate in 50ml of ethanol, then pour 0.513g of trimesic acid into it, stir and dissolve; then transfer the obtained solution into a 100ml reaction kettle, react at 150°C for 24 hours, pump The solid powder obtained by filtration was washed with alcohol three times, and dried in vacuum at 80° C. for 12 hours to obtain the product nickel trimesate MOFs;

[0053] (2) Preparation of nickel trimesate / MOFs:

[0054] In a closed container, take 0.15g of the obtained nickel trimesate MOFs and put them on a filter paper with a diameter of 50mm and a pore size of 0.22um, and place it at a high place. The schematic diagram of the device used in the laboratory is as follows figure 1 , put 1ml EDOT under it, and fumigate for 12 hours at...

Embodiment 2

[0060] (1) Preparation of nickel trimesate:

[0061] First fully dissolve 1.27g of nickel nitrate hexahydrate in 50ml of ethanol, then pour 0.513g of trimesic acid into it, stir and dissolve; then transfer the obtained solution into a 100ml reaction kettle, react at 150°C for 24 hours, pump The solid powder obtained by filtration was washed with alcohol three times, and dried in vacuum at 80° C. for 12 hours to obtain the product nickel trimesate MOFs;

[0062] (2) Preparation of nickel trimesate / MOFs:

[0063] In an airtight container, take 0.15 g of the obtained nickel trimesate MOFs and place it on a filter paper with a diameter of 50 mm and a pore size of 0.22 um, and place it in a high place, as shown in the schematic diagram below figure 1 , put 1ml EDOT under it, and fumigate for 12 hours at room temperature 30°C; place 0.3g I 2 , high temperature oxidation at 100°C for 10 hours; then at I 2 1ml of 12mol / L concentrated hydrochloric acid was placed at the place where ...

Embodiment 3

[0065] (1) Preparation of nickel trimesate:

[0066] First fully dissolve 1g of nickel nitrate hexahydrate in 50ml of ethanol, then pour 0.3g of trimesic acid into it, stir and dissolve; then transfer the obtained solution into a 100ml reactor, react at 150°C for 12 hours, and filter with suction The obtained solid powder was washed with alcohol for three times, and dried in vacuum at 80° C. for 12 hours to obtain the product nickel trimesate MOFs;

[0067] (2) Preparation of nickel trimesate / MOFs:

[0068] In an airtight container, take 0.15 g of the obtained nickel trimesate MOFs and place it on a filter paper with a diameter of 50 mm and a pore size of 0.22 um, and place it in a high place, as shown in the schematic diagram below figure 1 , put 0.5ml EDOT under it, and fumigate for 10 hours at room temperature 20°C; place 0.3g I 2 , high temperature oxidation at 90°C for 8 hours; then at I 2 Place 0.5ml of 12mol / L concentrated hydrochloric acid at the place where it is p...

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Abstract

The invention relates to a supercapacitor electrode composite material and a preparation method thereof, belonging to the technical field of energy storage and conversion. The electrode composite material is a nano sheet material compounded by a metal organic framework compound and a conductive polymer which is polymerized in situ in holes of the metal organic framework compound, wherein the conductive polymer is formed by doping iodine ions and chloride ions or iodine ions and acetate ions twice. According to the invention, the advantages of high specific surface area, abundant reactive sitesand good conductivity of the conductive polymer of the metal organic framework compound are combined, the metal organic framework compound, the conductive polymer, the iodine simple substance and hydrochloric acid or glacial acetic acid are used as raw materials, the conductive polymer monomer is evaporated to the metal organic framework compound in a gas phase manner, and doping is performed twice. The electrode composite material provided by the invention is used for a supercapacitor electrode, has the characteristics of the large capacity, the good energy storage performance and the high stability and the like, and is simple in preparation process, low in cost and convenient for batch production.

Description

technical field [0001] The invention belongs to the technical field of energy storage and conversion, and in particular relates to a supercapacitor electrode composite material and a preparation method thereof. Background technique [0002] As a new energy storage device between traditional capacitors and rechargeable batteries, supercapacitor (SC) has higher power density than rechargeable batteries, and has many advantages such as high charge and discharge efficiency, long service life and environmental friendliness. . Although significant progress has been made in the research and development of electrode materials for supercapacitors, the low specific surface area and porosity of commonly used electrode materials inhibit the direct contact between the active components and the electrolyte, reducing the ability of electron transfer and ion transmission. As a result, it is difficult to increase the energy density and power density of electrode materials. [0003] Metal o...

Claims

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Application Information

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IPC IPC(8): H01G11/24H01G11/26H01G11/48H01G11/86B82Y30/00B82Y40/00
CPCB82Y30/00B82Y40/00H01G11/24H01G11/26H01G11/48H01G11/86Y02E60/13
Inventor 杨亚杰张成光李成维毛喜玲何鑫徐建华
Owner UNIV OF ELECTRONIC SCI & TECH OF CHINA
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