Anthraquinone-2-copper carboxylate/graphene nano-composite as well as preparation and application thereof

A nanocomposite, copper carboxylate technology, applied in nanotechnology, nanotechnology, nanotechnology for materials and surface science, etc., can solve problems such as performance deterioration, achieve low equipment requirements, multi-intercalation lithium active sites, Avoid the effect of reunion

Inactive Publication Date: 2020-07-10
SOUTH CHINA NORMAL UNIVERSITY
View PDF4 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because graphene is easy to polymerize in the process of preparing composite materials, which deteriorates the performance, in order to prevent this possibility of polymerization, the preparation method of composite materials is also critical.

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
  • Anthraquinone-2-copper carboxylate/graphene nano-composite as well as preparation and application thereof
  • Anthraquinone-2-copper carboxylate/graphene nano-composite as well as preparation and application thereof
  • Anthraquinone-2-copper carboxylate/graphene nano-composite as well as preparation and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] (1) Dissolve 0.2520g of anthraquinone-2-carboxylic acid (AQC) in 13mL of N,N-dimethylformamide and stir in an oil bath at 60°C, then gradually add 1mL of 0.64mol / L Cu (NO 3 ) 2 The solution was heated to 80°C for reflux and stirred for 10 hours. After stopping the heating, it was cooled to obtain a blue precipitate, which was precipitated in 20ml of deionized water, washed with deionized water, and then dried in a blast drying oven at 80°C for 24 hours to obtain anthraquinone - 2-Carboxylate copper salt compound (CuAQC).

[0039] (2) disperse 0.08g CuAQC prepared in step (1) in the N-methylpyrrolidone solvent of 8mL together with 0.02g graphene after being ground in an agate mortar for half an hour, put it into a quartz ball mill jar at 2600r / min Ball mill for 4 hours, and then sonicate for 2 hours to make a turbid solution.

[0040] (3) Transfer the turbid liquid obtained in step (2) to a blast drying oven, and blow dry the co-precipitation at a temperature of 80° C...

Embodiment 2

[0052] (1) Dissolve 0.2520g of anthraquinone-2-carboxylic acid (AQC) in 11mL of methanol and stir in an oil bath at 60°C, then gradually add 1.5mL of 0.50mol / L Cu(NO 3 ) 2 The solution was heated to 75°C for reflux and stirred for 13 hours. After stopping the heating, it was cooled to obtain a blue precipitate, which was then precipitated in 25ml of deionized water, washed with deionized water, and then dried in a blast drying oven at 80°C for 24 hours to obtain anthraquinone - 2-Carboxylate copper salt compound (CuAQC).

[0053] (2) The 0.08g CuAQC prepared in step (1) was ground in a quartz grinder for half an hour and dispersed in 10mL of acetone solvent together with 0.015g graphene, put into a quartz ball mill jar and ball milled for 4 hour to make a turbid solution, and then sonicate for 1.5 hours.

[0054] (3) Transfer the turbid liquid obtained in step (2) to a blast drying oven, and blow dry the co-precipitation at a temperature of 60°C for 60 hours to obtain anthra...

Embodiment 3

[0057] (1) Dissolve 0.2520g of anthraquinone-2-carboxylic acid (AQC) in 15mL of ethanol and stir at 70°C, then gradually add 0.8mL of 0.95mol / L Cu(NO 3 ) 2 solution. Heat up to 90°C and reflux and stir for 8 hours. After stopping heating, cool to obtain a blue precipitate. The obtained precipitate is precipitated in 15ml of deionized water, washed with deionized water, and then dried in a blast drying oven at 90°C for 18 hours to obtain anthraquinone-2 - copper carboxylate compound (CuAQC).

[0058] (2) The 0.08g LiAQC prepared by step (1) is ground in a quartz grinder for half an hour and dispersed into 11mL of ethanol solvent together with 0.014g graphene, put into a quartz ball mill jar and ball mill for 4 hours, and then sonicated for 1.5 hours to make a turbid solution.

[0059] (3) Transfer the turbid liquid obtained in step (2) to a blast drying oven, and blow and dry the co-precipitation at a temperature of 60° C. for 48 hours to obtain anthraquinone-2-carboxylate c...

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

No PUM Login to view more

Abstract

The invention belongs to the field of lithium ion battery materials, and discloses an anthraquinone-2-copper carboxylate / graphene nano-composite as well as preparation and application thereof. The preparation method comprises the following steps: adding anthraquinone-2-carboxylic acid into a solvent, uniformly stirring and dissolving, dropwise adding a copper nitrate solution, and stirring for reflux reaction to obtain CuAQC; grinding the CuAQC, dispersing CuAQC and graphene into a solvent, and sequentially carrying out ball milling and ultrasonic treatment to obtain a uniform mixed dispersionliquid; and finally, carrying out forced air drying and coprecipitation to obtain the anthraquinone-2-copper carboxylate / graphene nano-composite. According to the method disclosed by the invention, the anthraquinone-2-carboxylic acid copper salt complex and the graphene are compounded by adopting simple ball milling and forced air drying coprecipitation, and the obtained compound has a characteristic structure of coating the rod-like anthraquinone-2-carboxylic acid copper salt complex with the graphene. The composite has excellent electrochemical performance as a lithium ion battery positiveelectrode material.

Description

technical field [0001] The invention belongs to the field of lithium ion battery materials, and in particular relates to an anthraquinone-2-carboxylate copper / graphene nanocomposite and its preparation and application. Background technique [0002] Limited by the problems of mineral resources and environmental pollution, the production of a renewable and sustainable lithium-ion battery electrode material is urgently needed by the market. Organic materials have the characteristics of low cost, degradability, regeneration, environmental friendliness, high theoretical capacity, structural diversity and safety, and have been the focus of lithium-ion electrode material researchers in recent years. [0003] The carboxyl coordination ability of anthraquinone-2-carboxylic acid is strong, and because it has three aromatic rings to form a rigid organic skeleton, compared with fatty acid ligands in the preparation process (fatty acid chains cross in three-dimensional space, resulting i...

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): H01M4/62H01M4/60H01M10/0525B82Y30/00
CPCB82Y30/00H01M4/60H01M4/625H01M4/628H01M10/0525H01M2004/021H01M2004/028Y02E60/10
Inventor 林耿忠曾荣华邱景伟刘祖妍陈木娟
Owner SOUTH CHINA NORMAL UNIVERSITY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap