Nitrogen-enriched doped multistage porous carbon material based on in-situ polymerization and preparation method and application thereof

An in-situ polymerization, multi-level hole technology, applied in the manufacture of hybrid/electric double-layer capacitors, hybrid capacitor electrodes, etc., can solve the problems of limited application and industrial production, poor performance, high current charge and discharge, and low energy density. Huge application potential and industrial value, low cost, good cycle stability

Active Publication Date: 2018-05-15
WENZHOU UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although this method obtains a material with a high specific surface area, the content of nitrogen doping is low, and its energy density is not high
[0009] As mentioned above, the prior art discloses a variety of methods for preparing nitrogen-doped new materials using technology, and thus obtained a variety of new materials with excellent electrical properties, but these new nitrogen-do

Method used

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  • Nitrogen-enriched doped multistage porous carbon material based on in-situ polymerization and preparation method and application thereof
  • Nitrogen-enriched doped multistage porous carbon material based on in-situ polymerization and preparation method and application thereof
  • Nitrogen-enriched doped multistage porous carbon material based on in-situ polymerization and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] (1) Mix 4.09g of 2-methyl-5-nitroimidazole and 20mL of hexachlorobutadiene. After ultrasonication for 1h, the temperature is 200°C for 6h in a closed reaction, and then the pressure is released to normal pressure, and the dry to obtain a solid substance;

[0049] (2) Under the protection of the inert gas nitrogen, the solid material obtained in step (1) was subjected to high-temperature treatment at 800° C. for 2 hours to obtain the nitrogen-rich doped hierarchical porous carbon material based on in-situ polymerization, which was named C1.

Embodiment 2～3

[0050] Embodiment 2~3: the investigation of the temperature of reaction in the step (1)

[0051] Except that the reaction temperature in step (1) was replaced by 180° C. and 220° C., other operations remained unchanged, so that Examples 2 to 3 were carried out sequentially and named as C2 to C3 respectively.

Embodiment 4～7

[0052] Embodiment 4~7: the investigation of adding the amount of 2-methyl-5-nitroimidazole in step (1)

[0053] In addition to replacing the ratio of the amount of 2-methyl-5-nitroimidazole and hexachlorobutadiene in step (1) with 1:2, 1:3, 1:5, 1:6, other operations All remain unchanged, so that the operation of Example 1 was repeated, so that Examples 4-7 were carried out in sequence, and the obtained composite materials were named C4-C7 in sequence.

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Abstract

The invention discloses nitrogen-enriched doped multistage porous carbon material based on in-situ polymerization and a preparation method and application thereof. The material is prepared according to the following method: an imidazole derivative and hexachlorobutadiene are mixed under the ultrasonic environment for 1h and react for 4h-12h in a sealed way under the temperature condition of 180-220 DEG C, then the pressure is released to the normal pressure and the mixture is dried so that a solid substance is obtained; and high temperature processing is performed on the obtained solid substance under the temperature of 700-900 DEG C under the protection of inert gas so that the finished product can be obtained. The nitrogen-enriched doped multistage porous carbon material based on in-situpolymerization has excellent electrochemical performance and can be used for preparing the capacitor electrode and especially the supercapacitor electrode so that the material can be used for the capacitor and especially the supercapacitor and has great application potential and industrial value in the field of energy storage.

Description

technical field [0001] The invention provides a nitrogen-rich doped hierarchical porous carbon material that can be used for in-situ polymerization of supercapacitors, a preparation method and application thereof, and belongs to the field of inorganic functional materials. Background technique [0002] Supercapacitor is a kind of power energy storage device, which has the ability of rapid charge and discharge, and has broad application prospects as a power device for hybrid electric vehicles. The performance of capacitors is closely related to the characteristics of electrode materials. Typically, electrode materials require high specific surface area, suitable pore size distribution, excellent electrical conductivity, high physical and chemical stability, high corrosion resistance, and low cost and easy availability. [0003] Carbon materials are widely used due to their large specific surface area, light weight, and high stability. However, carbon materials still have lo...

Claims

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Application Information

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IPC IPC(8): H01G11/24H01G11/32H01G11/86
CPCY02E60/13H01G11/24H01G11/32H01G11/86
Inventor 金辉乐冯诚王舜董小妹王继昌刘爱丽李俊
Owner WENZHOU UNIVERSITY
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