Supercharge Your Innovation With Domain-Expert AI Agents!

Method for preparing graphene conductive paper with controllable electric conductivity

A technology of graphene and electrical conductivity, applied in the direction of carbon silicon compound conductors, etc., can solve the problem that the conductivity of graphene has not been studied in depth

Inactive Publication Date: 2012-07-11
QINGDAO UNIV
View PDF0 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although it is well known to use diazonium salts to modify carbon materials such as graphene (J.R.Lomeda, C.D.Doyle, D.V.Kosynkin, W.-F.Hwang and J.M.Tour, Journal of the American Chemical Society, 2008 48 16201 ), but the conductivity of the modified graphene has not been studied in depth

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
  • Method for preparing graphene conductive paper with controllable electric conductivity
  • Method for preparing graphene conductive paper with controllable electric conductivity
  • Method for preparing graphene conductive paper with controllable electric conductivity

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Embodiment 1: Get 9mg Graphene (measure a certain volume according to the concentration of the graphene dispersion that has been calibrated), dilute to about 0.1mg / ml, pulverize 15~20 minutes with ultrasonic cell pulverizer, make uniform Graphene Dispersions. The resulting graphene dispersion was filtered through an aqueous membrane to form a film, and a four-probe system was used to measure the square resistance of the film and convert the conductivity.

Embodiment 2

[0014] Embodiment 2: make uniform graphene dispersion as described in embodiment 1, calculate by every carbon-carbon double bond and two moles of diazonium salt reaction, destroy 2% carbon-carbon double bond with the boron fluorine of 0.0018g aniline acid diazonium salt. Add the diazonium salt to the graphene dispersion, react in an environment lower than 10°C for 1h, and filter to form a membrane, and the rest are the same as in Example 1.

Embodiment 3

[0015] Embodiment 3: change the consumption of diazonium salt into 0.0045g among the embodiment 2, destroy the carbon-carbon double bond of 5%, all the other are the same as embodiment 1.

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 relates to graphene conductive paper with controllable electric conductivity and a preparation method for the graphene conductive paper. By the method, a conjugate structure of graphene is quantificationally damaged by using aromatic diazonium salt to fulfill the aim of controlling the electric conductivity of the graphene; and the graphene with controllable electric conductivity has a broad application prospect in the fields of electrical devices, electrodes and the like.

Description

technical field [0001] The method relates to a graphene conductive film and a preparation method thereof, in particular to a modified graphene material with controllable conductivity and a preparation method thereof, belonging to the field of modification and application of carbon materials. Background technique [0002] Graphene is a two-dimensional carbon atom crystal with sp2 hybrid orbitals, a single layer of atomically thick graphite, with a two-dimensional honeycomb grid structure, and is currently the thinnest material in the world. Graphene has excellent electrical, thermal and mechanical properties, and its electron mobility can reach 200,000 cm at room temperature. 2 V -1 S -1 , which is hundreds of times that of traditional semiconductor silicon materials, with a thermal conductivity of 5,000Wm -1 K -1 , Young's modulus up to 1100Gpa, specific surface area up to 2,630m 2 g -1 , In addition, there are some special conduction phenomena, such as the quantum Hal...

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
IPC IPC(8): C04B32/00H01B1/04
Inventor 刘敬权崔亮王蕊
Owner QINGDAO UNIV
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com