Copper metal organic framework material with supercapacitor performance as well as preparation method and application thereof

An organic framework and supercapacitor technology, applied in the manufacture of hybrid/electric double-layer capacitors, hybrid capacitor electrodes, etc., can solve the problems of limited application of MOFs materials and limited specific capacitance, so as to enhance the ability to store charges and improve specific capacitance. Effect

Active Publication Date: 2017-11-07
JIANGHAN UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the specific capacitance of existing MOFs materials is very limited, mostly 400-600F g -1 , limiting the application of MOFs materials

Method used

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  • Copper metal organic framework material with supercapacitor performance as well as preparation method and application thereof
  • Copper metal organic framework material with supercapacitor performance as well as preparation method and application thereof
  • Copper metal organic framework material with supercapacitor performance as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Weigh 5 mg of 4,2′:6′,4″-tripyridine-4′-benzoic acid (commercially available, produced by Jinan Henghua Reagent Co., Ltd.) and 10 mg of copper nitrate into the reaction flask, and add 4 mL of methanol Solution, the reaction bottle was ultrasonicated for 10 minutes, and the pH of the solution was adjusted to 7 with 0.1moL / L NaOH solution, put into a stainless steel reaction kettle and placed in an oven. The reaction temperature was 130°C, and the time was 48 hours. ℃, the product obtained is green crystal particles, and the crystals are separated and separated by cooling and filtration. Finally, the crystals are washed and dried to obtain a copper metal organic framework material with supercapacitive properties, with a yield of 60%.

Embodiment 2

[0036]Weigh 5 mg of 4,2′:6′,4″-tripyridine-4′-benzoic acid (commercially available product, produced by Jinan Henghua Reagent Co., Ltd.) and 9 mg of copper nitrate into the reaction flask, and add 5 mL of methanol Solution, the reaction bottle was ultrasonicated for 12min, and the pH of the solution was adjusted to 7.2 with 0.09moL / L NaOH solution, put into a stainless steel reaction kettle and placed in an oven. The reaction temperature was 110°C, and the time was 60 hours. ℃, the obtained product is a large amount of green flocculent precipitate and a small amount of green crystal particles, the crystals are separated and separated by cooling and filtration, and finally the crystals are washed and dried to obtain a copper metal organic framework material with supercapacitive properties, with a yield of 65%.

Embodiment 3

[0038] Weigh 5 mg of 4,2′:6′,4″-tripyridine-4′-benzoic acid (commercially available product, produced by Jinan Henghua Reagent Co., Ltd.) and 11 mg of copper nitrate into the reaction bottle, and add 2.5 mL of Methanol solution, sonicate the reaction bottle for 10min, take it out and adjust the pH of the solution to 6.8 with 0.09moL / L NaOH solution, put it into a stainless steel reaction kettle and put it in an oven. The reaction temperature is 140°C, and the time is 24 hours. Program cooling to At 30°C, the product obtained is a large amount of green flocculent precipitate and a small amount of green crystal particles. The crystals are separated and separated by cooling and filtration. Finally, the crystals are washed and dried to obtain a copper metal organic framework material with supercapacitive properties, with a yield of 62%. .

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Abstract

The invention discloses a copper metal organic framework material with supercapacitor performance as well as preparation method and application thereof. The preparation method comprises the following steps: firstly mixing 4,2':6',4-tripyridine-4'-benzoic acid with cuprous bromide, adding methanol, adequately stirring for dissolving so as to obtain a mixed solution, and adjusting the pH value of the mixed solution to 6.8-7.2 by virtue of sodium hydroxide; and reacting by virtue of the mixed solution at 110-140 DEG C for 24-60 hours, cooling, filtering, separating out crystals, and finally washing and drying, so as to obtain the copper metal organic framework material with the supercapacitor performance. According to the preparation method, a Cu-MOF material with a three-dimensional structure and a conductive network framework is synthesized from 4,2':6',4-tripyridine-4'-benzoic acid and cuprous bromide by virtue of a hydrothermal method and has specific capacitance and good rate capability and cycling stability.

Description

technical field [0001] The invention relates to the field of supercapacitors, in particular to a copper metal organic framework material with supercapacitor performance, a preparation method and application thereof. Background technique [0002] With the rapid economic development and the increasing number of various means of transportation and electronic smart products, traditional fuels are consumed in large quantities. In order to solve the severe situation of energy and resource shortage and ecological environment deterioration that mankind is about to face, the development of high-efficiency green energy storage devices with high energy density and high power density has become a possible solution. As a new type of energy storage device, supercapacitors have the advantages of higher power density than traditional capacitors and energy density of secondary batteries, and also have the characteristics of short charge and discharge time, good cycle performance, high Coulom...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G83/00H01G11/48H01G11/86
CPCC08G83/008H01G11/48H01G11/86Y02E60/13
Inventor 余凡熊芯黄坷芯周柳茵姚成武胡思前刘继延
Owner JIANGHAN UNIVERSITY
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