Amide polymer derived one-dimensional nitrogen-doped nano-carbon electrode material and preparation method

A technology of amide polymers and nitrogen-doped nano-carbons, applied in hybrid capacitor electrodes, battery electrodes, nanotechnology, etc., to achieve the effects of shortening ion diffusion distance, increasing active sites, and promoting Faradaic reactions

Active Publication Date: 2019-03-29
SOUTH CENTRAL UNIVERSITY FOR NATIONALITIES
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the conductivity, utilization efficiency, and specific capacity of amide-based polymer-derived nitrogen-doped carbon-based electrochemical energy materials still need to be solved.

Method used

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  • Amide polymer derived one-dimensional nitrogen-doped nano-carbon electrode material and preparation method
  • Amide polymer derived one-dimensional nitrogen-doped nano-carbon electrode material and preparation method
  • Amide polymer derived one-dimensional nitrogen-doped nano-carbon electrode material and preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] In the first example, polyimide-derived nitrogen-doped carbon nanobelts were prepared.

[0031] Preparation:

[0032] 1) Weigh 0.4362g of pyromellitic anhydride, dissolve in 40mL of water, stir until uniformly dispersed, and obtain the first mixed solution.

[0033]2) Weigh 0.3966g of 4,4-diaminodiphenylmethane and add it to the first mixed solution, keep stirring, and raise the temperature to 60°C in a water bath, and react for 2 hours to obtain the second mixed solution.

[0034] 3) Dissolve the second mixed solution in 50 mL of water after suction filtration and washing, disperse evenly, transfer to a 100 mL reaction kettle, and react at 200°C for 12 hours.

[0035] 4) Suction filter and wash the product, and dry at 60° C. to obtain polyimide.

[0036] 5) Put the polyimide in a tube furnace under the protection of argon, raise the temperature to 800 °C at a rate of 3 °C / min, keep it for 8 hours, and naturally cool to room temperature to obtain polyimide-derived nit...

Embodiment 2

[0041] In Example 2, polyimide-derived nitrogen-doped carbon nanotubes were prepared.

[0042] Preparation:

[0043] 1) Weigh 0.402g of 1,4,5,8-naphthalenetetracarboxylic anhydride, dissolve it in 40mL of water, stir until uniformly dispersed, and obtain the first mixed solution.

[0044] 2) Weigh 0.351g of 1,3,5-tris(4-aminophenyl)benzene and add it to the first mixed solution, keep stirring, and raise the temperature to 60°C in a water bath, react for 1.5h, and add the second mixed solution.

[0045] 3) Dissolve the second mixed solution in 50mL of water after suction filtration and washing, disperse evenly, transfer to a 100mL reaction kettle, and react at 220°C for 10h.

[0046] 4) Suction filter and wash the product, and dry at 70° C. to obtain polyimide.

[0047] 5) Put the polyimide in a tube furnace under the protection of argon, heat up to 600°C at a rate of 4°C / min, keep it warm for 10h, and naturally cool to room temperature to obtain polyimide-derived nitrogen-do...

Embodiment 3

[0052] In Example 3, polyimide-derived nitrogen-doped carbon nanorods were prepared.

[0053] Preparation:

[0054] 1) Weigh 0.402g of 1,4,5,8-naphthalenetetracarboxylic anhydride, dissolve it in 40mL of water, stir until uniformly dispersed, and obtain the first mixed solution.

[0055] 2) Weigh 0.291g of 1,3,5-tris(4-aminophenylphenyl)amine and add it to obtain the first mixed solution, keep stirring, and raise the temperature to 50°C in a water bath, react for 3 hours, and obtain the second mixed solution .

[0056] 3) Dissolve the second mixed solution in 50 mL of water after suction filtration and washing, disperse evenly, transfer to a 100 mL reaction kettle, and react at 210°C for 9 hours.

[0057] 4) Suction filter and wash the product, and dry at 65°C to obtain polyimide.

[0058] 5) Put the polyimide in a tube furnace under the protection of argon, raise the temperature to 1300°C at a rate of 7°C / min, keep it warm for 6h, and cool down to room temperature naturall...

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Abstract

The invention provides an amide polymer derived one-dimensional nitrogen-doped nano-carbon electrode material and a preparation method. The one-dimensional nitrogen-doped nano-carbon electrode material, which can be used as an electrode material of a lithium/sodium ion battery and a super capacitor, is prepared, so that the original amide engineering plastic with a low added value can be used in the field of green energy, the cost is effectively reduced, and the electrochemical performance is improved. The one-dimensional nitrogen-doped nano-carbon electrode material is characterized in that the one-dimensional nitrogen-doped nano-carbon electrode material is prepared by the raw material of an amide polymer or an amide polymer composite material through high-temperature carbonization underthe protection of an inert gas, wherein the amide polymer is an amide polymer with a one-dimensional nano structure, which is obtained by carrying out low-temperature salification on anhydride and amine monomers and then carrying out solvothermal reaction; the amide polymer composite material is an amide polymer composite material with a one-dimensional nano structure obtained by carrying out low-temperature salification on anhydride and amine monomers, mixing salt with a one-dimensional carbon nano material and carrying out solvothermal reaction.

Description

technical field [0001] The invention belongs to the field of electrode materials, and in particular relates to an amide polymer-derived one-dimensional nitrogen-doped nano-carbon electrode material and a preparation method thereof. technical background [0002] The ever-increasing world population and rapidly increasing energy consumption have brought huge challenges to human survival and development, and it is urgent to develop a new energy system to solve the problems we face. Due to their high power density and long cycle life, and their importance in reducing harmful emissions and reducing dependence on petroleum sources, the development of supercapacitors holds unlimited potential. The application of supercapacitors ranges from electric vehicles to portable electronic components, and occupies an important position in the development of modern society. [0003] The performance of supercapacitors largely depends on the properties of the internal electrode materials. At p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G11/44H01G11/36H01G11/24H01M4/36H01M4/587H01M10/0525H01M10/054B82Y30/00B82Y40/00
CPCB82Y30/00B82Y40/00H01G11/24H01G11/36H01G11/44H01M4/362H01M4/587H01M10/0525H01M10/054Y02E60/10Y02E60/13
Inventor 杨应奎刘旭斐何承恩雷盛张晓芳
Owner SOUTH CENTRAL UNIVERSITY FOR NATIONALITIES
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