Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Zinc-copper bimetallic MOF electrode material and preparation method thereof

An electrode material and bimetallic technology, applied in the field of zinc-copper bimetallic MOF electrode materials and its preparation, can solve the problems of high difficulty in electrolyte matching, low electronic conductivity, structural decomposition and collapse, etc., and achieve good electrochemical performance and high Effects of cycle stability and performance improvement

Inactive Publication Date: 2021-02-05
ZHEJIANG NIRUAN NEW MATERIAL CO LTD
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

MOFs have the characteristics of adjustable pore size, rich pore structure, high specific surface area, and a large number of surface functional groups. However, MOFs are directly used as electrode materials due to the generally low electronic conductivity, high difficulty in electrolyte matching, and structural problems during cycling. It will decompose the troubles of crashes and other problems, and the practical application faces huge challenges

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Zinc-copper bimetallic MOF electrode material and preparation method thereof
  • Zinc-copper bimetallic MOF electrode material and preparation method thereof
  • Zinc-copper bimetallic MOF electrode material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A Zn-Cu bimetallic MOF electrode material

[0022] Zn-Cu bimetallic MOFs were prepared by the following methods:

[0023] Step 1: 8.2g 2-methylimidazole was dissolved in 25mL methanol to obtain 2-methylimidazole methanol solution; 5.0g Zn(OH) 2 Dissolve in 15mL ammonia water to get Zn(OH) 2 Ammonia solution; 8.0 g of copper sulfate is prepared into a solution of 0.2 mol / L, and then ammonia is slowly added dropwise to the copper sulfate solution until forming a copper ammonia solution;

[0024] Step 2: Zn(OH) 2 Ammonia solution and copper ammonia solution were slowly added to 2-methylimidazole methanol solution, stirred at room temperature for 48 hours, centrifuged, and H 2 O / CH 3 The OH mixed solution was washed three times and dried overnight at 80°C to obtain the Zn-Cu bimetallic MOF.

[0025] Preparation of zinc-copper bimetallic MOF electrode materials:

[0026] Add 5g of zinc-copper bimetallic MOF and 5g of multi-walled carbon nanotubes (MWCNTs) into the reac...

Embodiment 2

[0028] A Zn-Cu bimetallic MOF electrode material

[0029] Zn-Cu bimetallic MOFs were prepared by the following methods:

[0030] Step 1: 8.2g 2-methylimidazole was dissolved in 30mL methanol to obtain 2-methylimidazole methanol solution; 5.0gZn(OH) 2 Dissolve in 18mL ammonia water to get Zn(OH) 2 Ammonia solution; 8.0 g of copper sulfate is prepared into a solution of 0.2 mol / L, and then ammonia is slowly added dropwise to the copper sulfate solution until forming a copper ammonia solution;

[0031] Step 2: Zn(OH) 2 Ammonia solution and copper ammonia solution were slowly added to 2-methylimidazole methanol solution, stirred at room temperature for 48 hours, centrifuged, and H 2 O / CH 3 The OH mixed solution was washed three times and dried overnight at 80°C to obtain the Zn-Cu bimetallic MOF.

[0032] Preparation of zinc-copper bimetallic MOF electrode materials:

[0033] Add 5g of zinc-copper bimetallic MOF and 5g of multi-walled carbon nanotubes (MWCNTs) into the react...

Embodiment 3

[0035] A Zn-Cu bimetallic MOF electrode material

[0036] Zn-Cu bimetallic MOFs were prepared by the following methods:

[0037] Step 1: 8.2g 2-methylimidazole was dissolved in 35mL methanol to obtain 2-methylimidazole methanol solution; 5.0gZn(OH) 2 Dissolve in 20mL ammonia water to get Zn(OH) 2 Ammonia solution; 8.0 g of copper sulfate is prepared into a solution of 0.2 mol / L, and then ammonia is slowly added dropwise to the copper sulfate solution until forming a copper ammonia solution;

[0038] Step 2: Zn(OH) 2 Ammonia solution and copper ammonia solution were slowly added to 2-methylimidazole methanol solution, stirred at room temperature for 48 hours, centrifuged, and H 2 O / CH 3 The OH mixed solution was washed three times and dried overnight at 80°C to obtain the Zn-Cu bimetallic MOF.

[0039] Preparation of zinc-copper bimetallic MOF electrode materials:

[0040] Add 5g zinc-copper bimetallic MOF and 5g multi-walled carbon nanotubes (MWCNTs) into the reactor, and ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
lengthaaaaaaaaaa
Login to View More

Abstract

A zinc-copper bimetalic MOF electrode material of the invention is prepared by the following method: adding zinc-copper bimetallic MOF and multi-walled carbon nanotubes (MWCNTs) into a reactor, addinggraphite powder and acetone, performing ultrasonic treatment for 30-60 minutes, uniformly mixing, naturally evaporating acetone, adding a proper amount of paraffin oil, uniformly grinding, blending the mixture into paste, slowly pressing the paste into one end of an electrode tube with in inner diameter of 3mm and the length of 3cm, and filling the upper part of the electrode tube with graphite powder after the electrode tube is compactly filled; and finally, inserting a polished copper wire as an inner electrode to obtain the zinc-copper bimetal MOF electrode material. According to the preparation method, the performance of a supercapacitor electrode is improved, and the actual popularization and application of the supercapacitor electrode are facilitated.

Description

technical field [0001] The invention belongs to the technical field of electrode materials, and in particular relates to a zinc-copper bimetallic MOF electrode material and a preparation method thereof. Background technique [0002] The further improvement of the cruising range of new energy vehicles poses new challenges to the energy density of batteries. Traditional electrode materials are accompanied by transition metal ion oxidation / reduction reactions and reversible intercalation-extraction of lithium ions in the lattice to achieve energy storage and conversion, so The structural and chemical stability of the host matrix limits the amount of reversible intercalation of the guest during the intercalation reaction. These electrode materials such as LiCoO 2 , LiMn 2 o 4 、LiFePO 4 , LiNixMnyCozO 2 Generally only one unit Li is allowed + and less than one unit Li in the actual deintercalation process + The amount of deintercalation, the improvement of discharge capacit...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H01G11/86H01G11/30C08G83/00
CPCC08G83/008H01G11/30H01G11/86Y02E60/13
Inventor 孟祥伟
Owner ZHEJIANG NIRUAN NEW MATERIAL CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com