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Three-dimensional nitrogen-doped foam composite electrode material and preparation method thereof

A nitrogen-doped carbon, composite electrode technology, applied in hybrid capacitor electrodes, hybrid/electric double layer capacitor manufacturing and other directions, can solve the problems of limited application, low energy density, small specific capacitance, etc. The effect of specific surface area and large specific capacitance

Inactive Publication Date: 2018-08-14
SHANGHAI INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, carbon supercapacitors have been developed rapidly due to their large specific surface area and electrical conductivity, but their applications are greatly limited due to their small specific capacitance and low energy density.

Method used

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  • Three-dimensional nitrogen-doped foam composite electrode material and preparation method thereof
  • Three-dimensional nitrogen-doped foam composite electrode material and preparation method thereof
  • Three-dimensional nitrogen-doped foam composite electrode material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] A three-dimensional nitrogen-doped carbon foam composite electrode material is prepared by the following steps:

[0038] (1) 5mmol of FeCl 3 .6H 2 O and 20ml of 1mol / l hydrochloric acid solution, and ultrasonic 30min at room temperature with 200W;

[0039] (2) Immerse the melamine foam with a size of 3×3×3cm into the mixed solution in step (1), add 0.5g of aniline monomer, and stir at 20°C for 12h;

[0040] (3) Wash the product in step (2) with deionized water and absolute ethanol, and then vacuum-dry it at 90° C. for 12 hours;

[0041] (4) The product treated in step (3) was raised to 900°C at a heating rate of 5°C, calcined for 2 hours under nitrogen protection, and then naturally cooled to room temperature to obtain a three-dimensional nitrogen-doped carbon foam composite electrode material.

[0042] Adopt S-3400N electron microscope (Hitachi) to scan the surface structure of the melamine foam (MS) used in the above-mentioned embodiment 1, the scanning electron mi...

Embodiment 2

[0044] A three-dimensional nitrogen-doped carbon foam composite electrode material is prepared by the following steps:

[0045] (1) 5mmol of FeCl 3 .6H 2 O and 20ml of 1mol / l hydrochloric acid solution, and ultrasonic 30min at room temperature with 200W;

[0046] (2) Immerse the melamine foam with a size of 3×3×3cm into the mixed solution in step (1), add 1g of aniline monomer, and stir at 30°C for 12h;

[0047] (3) Wash the product in step (2) with deionized water and absolute ethanol, and then vacuum-dry it at 60° C. for 12 hours;

[0048] (4) The product treated in step (3) was raised to 900°C at a heating rate of 5°C, calcined for 2 hours under the protection of nitrogen, and then naturally cooled to room temperature to obtain a three-dimensional nitrogen-doped carbon foam composite electrode material, named It is MS-PANi-1.

[0049] Adopt S-3400N electron microscope (Hitachi) to scan the surface structure of the nitrogen-doped carbon foam composite electrode material ...

Embodiment 3

[0051] A three-dimensional nitrogen-doped carbon foam composite electrode material is prepared by the following steps:

[0052] (1) 10mmol of FeCl 3 .6H 2 O and 20ml of 1mol / l hydrochloric acid solution, and ultrasonic 30min at room temperature with 200W;

[0053] (2) Immerse the melamine foam with a size of 3×3×3cm into the mixed solution in step (1), add 1.5g of aniline monomer, and stir at 30°C for 12h;

[0054] (3) Wash the product in step (2) with deionized water and absolute ethanol, and then vacuum-dry it at 60° C. for 12 hours;

[0055] (4) The product treated in step (3) was raised to 900°C at a heating rate of 5°C, calcined for 2 hours under the protection of nitrogen, and then naturally cooled to room temperature to obtain a three-dimensional nitrogen-doped carbon foam composite electrode material, named It is MS-PANi-2.

[0056] Adopt S-3400N electron microscope (Hitachi) to scan the surface structure of the nitrogen-doped carbon foam composite electrode material...

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Abstract

The invention belongs to the technical field of the storage material preparation, specifically a three-dimensional nitrogen-doped foam composite electrode material and preparation method thereof. Thepreparation method comprises the following steps: firstly adding ferric chloride and hydrochloric acid into deionized water, and sufficiently mixing; immersing the melamine foam (MS) into the mixture,and then adding a certain amount of phenylamine monomer, stirring for 10-24h at 20-90 DEG C, washing and drying to obtain a product; and finally calcining the obtained product, namely obtaining the three-dimensional nitrogen-doped foam composite electrode material. Through the composite electrode material disclosed by the invention, the preparation method is simple and reliable, low in cost and environment-friendly. The obtained nitrogen-doped foam composite electrode material is large in specific surface area and excellent in cycle performance; the surface charge storage is fast in reactiondue to the nitrogen doping, and the material is the ideal new energy material, and can be used as the electrode material.

Description

technical field [0001] The invention relates to a three-dimensional nitrogen-doped carbon foam composite electrode material and a preparation method thereof, belonging to the technical field of preparation of energy storage materials. Background technique [0002] Supercapacitor is a high-energy electric energy storage element, which has the characteristics of traditional dielectric capacitors and batteries, and also has the advantages of super large capacitance, short charge and discharge time, long service life, low maintenance cost, and environmental friendliness. The most promising new green energy. [0003] Supercapacitors, also known as electrochemical capacitors, include electric double layer capacitors and pseudocapacitors, which store energy through polarized electrolytes. They are electrochemical components, and the energy storage process is reversible. Among them, the electrode material is the core component of the capacitor. At present, supercapacitors based on...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G11/30H01G11/32H01G11/48H01G11/86
CPCY02E60/13H01G11/30H01G11/32H01G11/48H01G11/86
Inventor 韩生常伟薛原周嘉伟连俊王嘉炜颜松林静静刘玥冉姚璐
Owner SHANGHAI INST OF TECH
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