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

Three-dimensional continuous graphene network composite material and its preparation method

A composite material and graphene technology, applied in the field of nanomaterials, can solve the problems that affect the comprehensive performance of the three-dimensional graphene skeleton composite material, cannot be organically compounded with polymer materials, and the three-dimensional skeleton is difficult to keep intact, and achieves easy process control and equipment. The effect of low investment and simple preparation process

Inactive Publication Date: 2012-11-21
SHANGHAI INST OF CERAMIC CHEM & TECH CHINESE ACAD OF SCI
View PDF2 Cites 71 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, attempts have been made to combine graphene three-dimensional framework with polymer materials [Zongping Chen, Wencai Ren, Libo Gao, Bilu Liu, Songfeng Pei, Hui-Ming Cheng, Nature Materials, 2011, DOI: 10.1038 / NMAT3001], but the graphene used The number of layers cannot be controlled, especially the three-dimensional skeleton of graphene with few layers
In addition, in the process of removing the support material with organic solvents, the three-dimensional framework is difficult to preserve intact, the preparation process is complicated, and it cannot be organically compounded with polymer materials, which will seriously affect the comprehensive performance of the three-dimensional graphene framework composite material

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
  • Three-dimensional continuous graphene network composite material and its preparation method
  • Three-dimensional continuous graphene network composite material and its preparation method
  • Three-dimensional continuous graphene network composite material and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] (1) Use commercially available copper foam (purchased from Changsha Liyuan New Material Co., Ltd.) metal template as a catalyst, put it into a chemical vapor deposition reactor, feed 100 sccm hydrogen and 100 sccm argon, and start heating to 800 ° C after 60 minutes , feed 80sccm methane after 30 minutes at constant temperature, the reaction time is 30 minutes, stop passing methane after the reaction is over, turn off the electric furnace, and cool to room temperature naturally;

[0027] (2) Take the product obtained in step (1) in an aqueous solution of 4wt% polyvinyl alcohol, take it out and dry it at 100°C for 3 hours to deposit a layer of polyvinyl alcohol on its surface, put 100ml of 1M hydrochloric acid and 1M FeCl 3 Stir in the solution for 4 hours to remove metal copper and obtain a three-dimensional graphene / polyvinyl alcohol skeleton composite structure. The scanning electron microscope photo is as follows: figure 1 shown. If the polyvinyl alcohol support is ...

Embodiment 2

[0030] The preparation method is basically the same as in Example 1, except that the difference is: in step (1), nickel foam that is ultrasonically cleaned through ethanol, acetone and isopropanol is used as a catalyst, and it is immersed in N, N of polydimethylsiloxane. In two-dimethylformamide solution, obtain foam nickel / polydimethylsiloxane composite structure, pass through 100sccm hydrogen, 100sccm nitrogen, reaction time 30 minutes, Raman spectrum is as figure 2 As shown, the number of graphene layers is 3-10; in step (2), deposit one deck of polyvinylidene fluoride on the surface of foamed nickel, and use concentrated hydrochloric acid to remove foamed nickel; in step (5), 2wt% graphene three-dimensional framework Composite with polyvinylidene fluoride, the curing temperature is 60 ° C, and the curing time is 10 hours. The conductivity of the obtained graphene / polyvinylidene fluoride composite material is 15.3 S / cm.

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
thicknessaaaaaaaaaa
pore sizeaaaaaaaaaa
Login to View More

Abstract

The invention belongs to the nanocomposite material field, and relates to a preparation method of a novel three-dimensional graphene network composite material. The method comprises the following steps: obtaining a three-dimensional continuous graphene skeleton composite structure by adopting a metal template having a three-dimensional continuous pore structure as a catalyst, by growing the graphene through utilizing a chemical vapor deposition method until the graphene sklayer number is 1-20, and by adopting an etching liquid to remove the metal template; and compositing the graphene composite structure with a high polymer material to obtain the three-dimensional graphene network composite material. The three-dimensional graphene network composite material has the advantages of simple technology, easily controlled processes, excellent conductivity, and low preparation cost, and is suitable for the fields of solar cells, energy storage cells and conductive composite materials.

Description

technical field [0001] The invention belongs to the field of nanometer materials, and relates to a preparation method of a three-dimensional continuous graphene network composite material. The three-dimensional continuous graphene network composite material is mainly used in the fields of solar cells, energy storage batteries, heat dissipation and antistatic. Background technique [0002] Graphene is a two-dimensional (2D) periodic honeycomb lattice structure composed of carbon six-membered rings, which is the basis for constructing other dimensional carbon-based materials (0D fullerenes, 1D carbon nanotubes and 3D graphite). unit. The unique crystal structure of graphene endows it with excellent properties, such as high thermal conductivity, high mechanical strength, and peculiar electrical and optical properties. Therefore, graphene has broad application prospects in fields such as field emission, electrode materials, and composite functional materials. [0003] Polymer ...

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): C08L27/16C08L39/06C08L71/00C08L29/04C08L33/12C08L23/06C08L27/06C08L23/12C08L27/18C08L61/06C08L77/00C08L21/00C08K7/24C08K3/04C23C16/26H01B1/24
Inventor 黄富强毕辉唐宇峰林天全
Owner SHANGHAI INST OF CERAMIC CHEM & TECH CHINESE ACAD OF SCI
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