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Cu-MOF/GO composite based on green organic ligand, preparation method and application thereof

A technology of organic ligands and composites, which is applied in the field of Cu-MOF/GO composites and its preparation, can solve the problems that the energy density and power density cannot meet the performance requirements of lithium-ion batteries, so as to improve the conductivity and stability, The effect of reducing costs and reducing environmental pollution

Inactive Publication Date: 2019-08-09
XI AN JIAOTONG UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, its energy density and power density are far from meeting the performance requirements of the current market for lithium-ion batteries.

Method used

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  • Cu-MOF/GO composite based on green organic ligand, preparation method and application thereof
  • Cu-MOF/GO composite based on green organic ligand, preparation method and application thereof
  • Cu-MOF/GO composite based on green organic ligand, preparation method and application thereof

Examples

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Embodiment 1-3

[0034] Example 1-3: Preparation of Cu-MOF / GO composite

[0035] (1) Calculate according to the mass ratio of GO and Cu-CA-MOF being 1.75wt%, 2wt%, and 3.5wt%, respectively, weigh GO, and disperse it in 15mL of deionized water by ultrasonication for 20min;

[0036] (2) Weigh 4mmol (0.966g) of Cu(NO 3 ) 2 ·3H 2 O, dissolved in deionized water dispersed with graphene oxide, magnetically stirred until completely dissolved;

[0037] (3) Weigh 2mmol (0.420g) of citric acid monohydrate, dissolve it in 5mL of deionized water, stir magnetically until completely dissolved, add it into the solution of (2), and stir magnetically for 30min;

[0038] (4) Transfer the mixed solution obtained in (3) into a 50mL reaction kettle, set the oven temperature to 140°C, and react for 20h to obtain a blue solid;

[0039] (5) The obtained crystals are filtered and washed 3-5 times with deionized water;

[0040] (6) Dry the prepared solid powder at 110°C for 5 h to remove free water and water in th...

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Abstract

The invention discloses a preparation method of a Cu-MOF / GO composite based on a green organic ligand. The method comprises a step of dispersing a conductive phase material in water, adding a transition metal salt and dissolving to obtain a solution 1, a step of dissolving the green organic ligand in water to obtain a solution 2, a step of mixing the solution 1 and the solution 2 and performing hydrothermal reaction for 5 to 30 hours at the temperature of 60 DEG C to 200 DEG C to obtain the Cu-MOF / GO composite, wherein the conductive phase material is graphene oxide, the transition metal saltis Cu(NO3)2 or a hydrate thereof, and the green organic ligand is citric acid or a hydrate thereof. The invention also discloses the Cu-MOF / GO composite prepared by the above method and an applicationthereof. According to the preparation method of the Cu-MOF / GO composite of the invention, the green ligand of citric acid is used, the cost can be greatly reduced, and the environmental pollution iseffectively reduced.

Description

technical field [0001] The invention relates to the technical field of metal-organic framework materials, in particular to a green organic ligand-based Cu-MOF / GO composite and its preparation method and application. Background technique [0002] With the continuous development of society, human beings have an increasing demand for resources. Due to the extensive use of fossil fuels, there are problems such as energy depletion, greenhouse effect and environmental pollution. Therefore, the development and utilization of new energy sources is imminent. In recent years, clean energy such as solar energy, wind energy, tidal energy, water energy, and nuclear energy has attracted widespread attention worldwide due to its renewable and low-pollution characteristics. However, most clean energy sources are discontinuous, unstable and difficult to use directly. Therefore, how to achieve efficient, cheap and environmentally friendly energy storage and conversion is particularly impor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/36H01M4/60H01M4/62H01M10/0525C08G83/00
CPCC08G83/008H01M4/362H01M4/602H01M4/624H01M10/0525H01M2004/021H01M2004/027Y02E60/10
Inventor 李婷金宏张启路白益露徐慧王勇
Owner XI AN JIAOTONG UNIV