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Nitrogen-doped super-stable porous polymer composite material and preparation method thereof

A technology of porous polymer and composite material, which is applied in the field of nitrogen-doped ultra-stable porous polymer composite material and its preparation, can solve problems such as poor electrical conductivity, and achieve improved surface wettability, excellent performance, and excellent electrochemical stability. Effect

Active Publication Date: 2019-02-22
SHANGHAI NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Porous coordination polymers (PCPs) are similar to MOFs, with large specific surface area and adjustable pore size, but they all face the problem of poor conductivity when used as electrode materials.

Method used

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  • Nitrogen-doped super-stable porous polymer composite material and preparation method thereof
  • Nitrogen-doped super-stable porous polymer composite material and preparation method thereof
  • Nitrogen-doped super-stable porous polymer composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] First prepare the organic ligand, weigh 0.6306g melamine and 2.2501g p-aldehyde benzoic acid and react in 40ml o-xylene at 150°C for 10h. The white product was obtained by suction filtration and purified with water and ethanol 1:1. Vacuum-dried at 80°C for 8 hours, ready for use. Then take 0.2613g organic ligand and 0.2910 cobalt nitrate hexahydrate into the reaction kettle, the solvent is DMF:EtOH=2:1, respectively react at 80°C for 60h, then naturally cool and filter to obtain the product, and dry it at 80°C to obtain Co-PCPs-80 material. Electrochemical performance tests were performed on it, and the charge transfer resistance (Rct) of the composite material was 0.5737Ω., and it had a low equivalent series resistance value and excellent diffusion properties. The cyclic voltammetry curves are rectangular-like with weaker redox peaks, indicating the fast charge propagation capability of both electric double layer capacitance and pseudocapacitance. Calculated from th...

Embodiment 2

[0027] First prepare the organic ligand, weigh 0.6306g melamine and 2.2501g p-aldehyde benzoic acid and react in 40ml o-xylene at 150°C for 9h. The white product was obtained by suction filtration and purified with water and ethanol 1:1. Vacuum-dried at 80°C for 8 hours, ready for use. Then take 0.2613g of organic ligand and 0.2910g of cobalt nitrate hexahydrate into the reaction kettle, the solvent is DMF:EtOH=2:1, respectively react at 100°C for 60h, then naturally cool and filter to obtain the product, and dry it at 80°C to obtain Co-PCPs-100 material. Electrochemical performance tests were carried out on it. The charge transfer resistance (Rct) of the composite material was 0.6319Ω., and it had a low equivalent series resistance value and excellent diffusion performance. The cyclic voltammetry curves are rectangular-like with weaker redox peaks, indicating the fast charge propagation capability of both electric double layer capacitance and pseudocapacitance. Calculated ...

Embodiment 3

[0029] First prepare the organic ligand, weigh 0.6306g melamine and 2.2501g p-aldehyde benzoic acid and react in 50ml o-xylene at 155°C for 10h. The white product was obtained by suction filtration and purified with water and ethanol 1:1. Vacuum-dried at 80°C for 8 hours, ready for use. Then take 0.2613g organic ligand and 0.2910 cobalt nitrate hexahydrate into the reaction kettle, the solvent is DMF:EtOH=1:1, respectively react at 120°C for 50h, then naturally cool and filter to obtain the product, and dry it at 80°C to obtain Co-PCPs-120 material. The electrochemical performance test shows that the charge transfer resistance (Rct) of the composite material is 0.562Ω., and has a low equivalent series resistance value and excellent diffusion performance. The cyclic voltammetry curves are rectangular-like with weaker redox peaks, indicating the fast charge propagation capability of both electric double layer capacitance and pseudocapacitance. Calculated from the charge-disch...

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Abstract

The invention relates to a nitrogen-doped super-stable porous polymer composite material and a preparation method thereof. The preparation method adopts the following steps: (1) synthesizing a ligandfrom melamine and p-formylbenzoic acid in an o-xylene solvent, and performing purification treatment; and (2) adding the ligand and cobalt nitrate hexahydrate into DMF (Dimethyl Formamide) and an ethanol solvent for reacting, washing after reaction completion, and drying at a temperature of 75-85 DEG C, thereby obtaining the nitrogen-doped super-stable porous polymer composite material. Compared with the prior art, the electrode material prepared by the method disclosed by the invention has the characteristics of double electric layer capacitors and pseudocapacitors, has good capacitive performance and excellent cycling stability, and is an ideal supercapacitor electrode material.

Description

technical field [0001] The invention belongs to the technical field of supercapacitor electrode materials, and in particular relates to a nitrogen-doped ultra-stable porous polymer composite material and a preparation method thereof. Background technique [0002] Electrochemical capacitors are known as supercapacitors, and supercapacitors can be divided into two categories. The first type: electric double layer capacitor, which stores electric energy through the electrostatic adsorption of the electrode material to the charge, and its electrochemical performance is closely related to the conductivity, specific surface area and pore structure of the electrode material; the second type: pseudocapacitance capacitor, pseudocapacitance Capacitive capacitors store energy through fast and reversible redox reactions of electrode materials, and the theoretical specific capacitance, conductivity, and structural morphology of electrode materials will significantly affect the electroche...

Claims

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Application Information

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IPC IPC(8): C08G12/32H01G11/30H01G11/48H01G11/86
CPCC08G12/32H01G11/30H01G11/48H01G11/86Y02E60/13
Inventor 郭建宇王利张斯勇鲁彦
Owner SHANGHAI NORMAL UNIVERSITY
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