Porous polymer material used for preparing supercapacitor electrode and preparation method thereof

A technology of porous polymer and supercapacitor, applied in the field of material science, to achieve the effect of simple preparation method, improved specific capacitance and high specific surface area

Active Publication Date: 2016-02-03
DALIAN UNIV OF TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The organic network polymer containing phthalazinone and s-triazine structure is a two-dimensional or three-dimensional network structure polymer formed by heterocyclic aromatic hydrocarbons containing cyano functional groups through cyanotrimerization reaction. Surface area, rich pore structure, adjustable molecular structure and controllable heteroatom doping, we have developed it as an electrode material for supercapacitors, and there is no public report so far

Method used

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  • Porous polymer material used for preparing supercapacitor electrode and preparation method thereof
  • Porous polymer material used for preparing supercapacitor electrode and preparation method thereof
  • Porous polymer material used for preparing supercapacitor electrode and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] The first step, the preparation of a novel dinitrile monomer containing a bisdiazinone structure

[0048] Add compound 1a (37g) (structural formula such as figure 1 Shown), 4-fluorobenzonitrile (30g), cesium fluoride (37g), then add 100ml of dimethyl sulfoxide DMSO to it, stir, react at 150°C for 5h, sink the solution into ethanol, Stand still, suction filter, Soxhlet extraction, and dry to obtain a yellow powdery solid. Product characterization as attached figure 1 ~ attached Figure 4 shown.

[0049] The second step, the preparation of porous polymer containing phthalazinone and s-triazine structure

[0050] Put the new dinitrile monomer (0.5g) containing bisdiazinone structure and anhydrous zinc chloride (0.2g) into a quartz tube, vacuum seal the tube, polymerize at 500°C for 30h, and cool the furnace to room temperature , take it out, put the obtained product in 5% dilute hydrochloric acid, ultrasonic 1-2h, centrifuge, wash with deionized water to neutrality, f...

Embodiment 2

[0056] The first step, the preparation of a novel dinitrile monomer containing a bisdiazinone structure

[0057] As described in Example 1.

[0058] The second step, the preparation of the polymer containing phthalazinone and s-triazine structure

[0059] The polymerization temperature was changed to 550° C., and other processing conditions were the same as in Example 1. Finally, a polymer polymerized at 550°C was obtained.

[0060] The specific Raman spectrum of the product obtained is shown in the appendix Figure 5 . Infrared spectrum see attached Figure 6 . Nitrogen adsorption and desorption curves and pore size distribution refer to the attached Figure 7 .

[0061] In order to further verify its electrical properties, electrochemical performance tests were carried out.

[0062] As described in Example 1.

[0063] The change of the specific capacity of the electrode material with the current density and the AC impedance spectrum can be found in the appendix Fi...

Embodiment 3

[0065] The first step, the preparation of a novel dinitrile monomer containing a bisdiazinone structure

[0066] As described in Example 1.

[0067] The second step, the preparation of the polymer containing phthalazinone and s-triazine structure

[0068] The polymerization temperature was changed to 600° C., and other processing conditions were the same as in Example 1. Finally, a polymer polymerized at 600°C was obtained.

[0069] The specific Raman spectrum of the product obtained is shown in the appendix Figure 5 . Infrared spectrum see attached Figure 6 . Nitrogen adsorption and desorption curves and pore size distribution refer to the attached Figure 7 . For the high-resolution TEM spectrum and the distribution labels of carbon atoms, nitrogen atoms, and oxygen atoms, please refer to the attached Figure 8 .

[0070] In order to further verify its electrical properties, electrochemical performance tests were carried out.

[0071] As described in Example 1. ...

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Abstract

The invention relates to a porous polymer material used for preparing a supercapacitor electrode and a preparation method thereof. Nucleophilic substitution reaction is carried out on bisphenol-like monomer containing a bis-phthalazinone structure and 4-halobenzonitrile in an aprotic polar solvent under the catalytic action of alkali metal halide, so that a series of novel dinitrile monomers containing the bis-phthalazinone structure are obtained; high temperature polymerization is carried out on the novel dinitrile monomers under the catalytic action of Lewis acid, so that a porous polymer material containing the bis-phthalazinone structure and a s-triazine structure is obtained; and the porous polymer material is assembled into a supercapacitor, and electrical properties of the supercapacitor are tested. The preparation method of the porous polymer material is simple and easy to control, and implementation of an engineering technology is facilitated; and the supercapacitor prepared from the porous polymer material has the characteristics of high specific capacitance (the specific capacitance is 378F/g when the current density is 0.1A/g) and excellent cycling stability (the specific capacitance is not attenuated after charging and discharging are carried out for 10000 times).

Description

technical field [0001] The invention belongs to the field of material science, and relates to a porous polymer material used for preparing supercapacitor electrodes and a preparation method thereof. Background technique [0002] Supercapacitor is a high-energy electric energy storage element, which combines the characteristics of traditional dielectric capacitors and batteries, and has the characteristics of high power density, short charge and discharge time, long service life, good temperature characteristics, maintenance-free, and environmental friendliness. Therefore, It is regarded as the most promising new green energy in this century. [0003] Supercapacitors are mainly composed of current collectors, electrolytes, electrode materials, diaphragms and other components. Electrode materials are the core components of supercapacitors and play a key role in the performance of supercapacitors. At present, carbon supercapacitors have been initially commercially tested, but ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G73/06H01G11/48
CPCY02E60/13
Inventor 蹇锡高胡方圆王锦艳刘程张守海
Owner DALIAN UNIV OF TECH
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