Copper metal organic framework material with supercapacitive performance and its preparation method and application

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 limiting the application of MOFs materials and limited specific capacitance, so as to enhance the ability to store charges and increase specific capacitance Effect

Active Publication Date: 2020-08-04
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 supercapacitive performance and its preparation method and application
  • Copper metal organic framework material with supercapacitive performance and its preparation method and application
  • Copper metal organic framework material with supercapacitive performance and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Weigh 5mg of 4,2′:6′,4″-tripyridine-4′-benzoic acid (commercially available product, produced by Jinan Henghua Reagent Co., Ltd.) and 10mg of cuprous bromide into the reaction bottle, and add 4mL Ultrasound the reaction bottle for 10 minutes, take it out and adjust the pH of the solution to 7 with 0.1moL / L NaOH solution, put it into a stainless steel reaction kettle and put it in an oven. The reaction temperature is 130°C, and the time is 48 hours. Program cooling When the temperature reaches 30°C, the product is green crystal particles, and the crystals are separated and separated by cooling and filtering. 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 cuprous bromide into the reaction flask, and add 5 mL Ultrasound the reaction bottle for 12min, take it out and adjust the pH of the solution to 7.2 with 0.09mol / L NaOH solution, put it into a stainless steel reaction kettle and put it in an oven. The reaction temperature is 110°C, and the time is 60 hours. Program cooling to 30°C, 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 5mg of 4,2′:6′,4″-tripyridine-4′-benzoic acid (commercially available product, produced by Jinan Henghua Reagent Co., Ltd.) and 11mg of cuprous bromide into the reaction flask, and add 2.5 mL of methanol solution, sonicate the reaction bottle for 10 minutes, 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. The temperature was lowered to 30°C, and the product obtained was a large amount of green flocculent precipitate and a small amount of green crystal particles. The crystals were separated and separated by cooling and filtration. Finally, the crystals were washed and dried to obtain a copper metal organic framework material with supercapacitive properties. The yield was 62%.

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Abstract

The invention discloses a copper metal organic framework material with supercapacitive performance and a preparation method and application thereof. The preparation method comprises the following steps: firstly, 4,2′:6′,4″-tripyridine-4′-benzene After mixing formic acid and cuprous bromide, add methanol to fully stir and dissolve to obtain a mixed solution, and adjust the pH of the mixed solution to 6.8-7.2 with sodium hydroxide; then place the mixed solution at 110-140 ° C for 24-60 hours of reaction Then, the crystals are separated by cooling and filtration, and finally the crystals are washed and dried to obtain a copper metal organic framework material with supercapacitive performance. The present invention adopts 4,2':6',4"-tripyridine-4'-benzene Formic acid and cuprous bromide hydrothermally synthesized Cu-MOF materials with a three-dimensional structure and a conductive network framework, which exhibited high specific capacitance, good rate capability, and good 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 Patents(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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