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Ppy @ ZIF-67 composite material and preparation method and application thereof

A composite material and deionized water technology, applied in the manufacture of hybrid/electric double layer capacitors, hybrid capacitor electrodes, etc., can solve problems such as hindering the application of polypyrrole, structural damage, and reducing electrochemical stability, so as to improve electrochemical conductivity sexual effect

Inactive Publication Date: 2019-12-31
EAST CHINA NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, during the long-term electrochemical use of polypyrrole, its volume will expand and shrink greatly, resulting in structural damage and collapse, reducing its electrochemical stability, and hindering the application of polypyrrole in supercapacitors.

Method used

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  • Ppy @ ZIF-67 composite material and preparation method and application thereof
  • Ppy @ ZIF-67 composite material and preparation method and application thereof
  • Ppy @ ZIF-67 composite material and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] (1) Add 0.35 cobalt nitrate hexahydrate and 0.684 potassium persulfate to 10 ml deionized water to obtain solution A; add 0.2 g pyrrole, 0.27 g sodium lauryl sulfate and 0.8 g dimethylimidazole to 10 ml deionized water , to obtain solution B, pour the above solution A into solution B, stir rapidly, heat and react at 50°C for 5 hours, wash and dry with deionized water and ethanol to obtain a black powder, which is ppy@ZIF-67 composite material, and its SEM photo is as follows figure 1 shown;

[0031] (2) Nickel foam pretreatment: The nickel foam was cut into a rectangle, first soaked in 1M HCL ultrasonically for 15 minutes, then ultrasonically cleaned with deionized water and ethanol for 15 minutes, and dried overnight in an oven at 60°C. Put the powder sample prepared in step (1), acetylene black and polyvinylidene fluoride (PVDF) into a mortar with a mass ratio of 8:1:1, add analytically pure N-methylpyrrolidone (NMP) dropwise, and grind Turn it into a slurry, drop-co...

Embodiment 2～ Embodiment 4

[0033] Each embodiment is identical with embodiment 1, and its difference is as shown in table 1:

[0034] Table 1

[0035] project Example 2 Example 3 Example 4 Heating temperature (℃) 40 30 20

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Abstract

The invention discloses a ppy @ ZIF-67 composite material and preparation method and application thereof. The preparation comprises the steps: (1) mixing and stirring cobalt nitrate hexahydrate, potassium persulfate and deionized aqueous solution so as to obtain a solution A; (2) mixing and stirring pyrrole monomer, sodium dodecyl sulfate, dimethylimidazole and deionized aqueous solution so as toobtain a solution B; 3) pouring the solution A into the solution B, heating, mixing and stirring, washing with deionized water and ethanol and drying so as to obtain the black powder ppy @ ZIF-67 composite material. The ppy @ ZIF-67 composite material is prepared into an electrode sheet to be applied supercapacitors and shows the specific capacitance of being up to 3600F / g and good magnification characteristics so as to be a quite potential supercapacitor material.

Description

technical field [0001] The invention relates to the preparation of porous composite materials, especially the synthesis of polypyrrole and metal organic framework compound ZIF-67 composite material, specifically a metal organic framework compound based porous composite material and its preparation method and application. Background technique [0002] Today, the development of new materials with functional and structural integration has become one of the priority development areas in my country, which has very important practical and scientific significance. With the development of human beings and the scale of the economy, countries all over the world are in urgent need of energy. As the earth's abundant fossil energy, petroleum has become one of the most widely used energy sources in the world. However, environmental problems such as the unsustainability of fossil energy and global warming caused by the extensive use of petroleum are becoming more and more serious. In ord...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G11/30H01G11/48H01G11/86
CPCH01G11/30H01G11/48H01G11/86Y02E60/13
Inventor 黄爱生刘传耀岳文哲韩玉
Owner EAST CHINA NORMAL UNIV
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