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

Binary carbon material-conductive polymer composite nanometer gas-sensitive film and preparation method thereof

A technology of conductive polymer and binary carbon material, applied in the field of composite nanomaterials and thin film technology, can solve the problems of poor selectivity and stability of single carbon material gas sensitive thin film, achieve excellent gas sensitive performance and enhance electrical conductivity and gas-sensing characteristics, the effect of simple preparation process

Active Publication Date: 2016-04-06
UNIV OF ELECTRONICS SCI & TECH OF CHINA
View PDF13 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide an orderly and controllable binary carbon material-conductive polymer self-assembled composite nano gas-sensitive film and its preparation method, improve the dispersion uniformity and film order of a single carbon material solution, and solve the problem of single Problems such as poor selectivity and stability of carbon material gas-sensitive thin films

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
  • Binary carbon material-conductive polymer composite nanometer gas-sensitive film and preparation method thereof
  • Binary carbon material-conductive polymer composite nanometer gas-sensitive film and preparation method thereof
  • Binary carbon material-conductive polymer composite nanometer gas-sensitive film and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] ①Using the gold interdigitated electrode as the substrate; the substrate was ultrasonically cleaned in acetone, ethanol and deionized water for 10 minutes, and dried with nitrogen;

[0056] ②Place the substrate in a volume ratio of 1:1:5 ammonia water / hydrogen peroxide / water solution for 30 minutes to make the surface of the substrate hydrophilic;

[0057] ③Take 2ml of polydiallyl ammonium chloride (PDDA) standard solution with a concentration of 20%wt, prepare 40ml of polycationic electrolyte PDDA aqueous solution with a concentration of 1%wt, and ultrasonicate for 10min for later use; take 0.1g of poly(p-styrene Sodium sulfonate) (PSS), add 47.5ml of deionized water and 2.5ml of 2mol / L hydrochloric acid solution to make polyanion electrolyte PSS aqueous solution, ultrasonic for 10min for later use;

[0058] ④Weigh 0.5mg of graphene nanosheets and single-walled carbon nanotubes respectively, add 5ml of deionized water to prepare the aqueous dispersion of binary carbon ...

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 discloses a binary carbon material-conductive polymer composite nano gas-sensitive thin film and a preparation method thereof. The binary carbon material-conductive polymer composite nano gas-sensitive thin film is a composite thin film formed by self-assembling a binary carbon material and a conductive polymer material through chemical polymerization, the binary carbon material is a combination of any of a graphene material and a carbon nanotube as well as a carbon nanofiber, nano porous carbon or nano graphite. The composite nano thin film with excellent gas-sensitive characteristic can be prepared by fully utilizing the excellent conductivity and high specific surface area of the carbon nano material and the peculiar response characteristic of the conductive polymer, playing the synergistic and supplementary roles generated among different materials and combining an orderly controllable self-assembled film forming method. The binary carbon material-conductive polymer composite nano gas-sensitive thin film and the preparation method thereof can open up a new approach for the sensitive thin film for a gas sensor which is high in performance, low in cost and capable of working at room temperature.

Description

technical field [0001] The invention relates to the field of composite nanomaterials and thin film technology, in particular to a binary carbon material-conductive polymer self-assembled composite nanometer gas-sensitive thin film and a preparation method thereof. Background technique [0002] As a new type of gas-sensing material, graphene has bright application prospects in the field of gas sensors due to its large specific surface area, unique carrier characteristics and excellent electrical properties; at the same time, various carbon nanomaterials, such as carbon nanotubes, Carbon nanofibers, nanoporous carbon, or nanographite, etc., have become one of the most promising gas-sensing materials due to their rich pore structure and high specific surface area. Gas sensors based on different carbon materials have high sensitivity and low detection limit, but poor selectivity; at the same time, the excellent chemical properties of the gas-sensitive film also depend on the goo...

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 Patents(China)
IPC IPC(8): C08G73/02C08K7/00C08K3/04C08J5/18C08G73/06C08G61/12
Inventor 太惠玲郭宁杰叶宗标徐晓颖何应飞蒋亚东
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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