Method for preparing polypyrrole nanometer wire-graphene composite material

A technology of polypyrrole nanowires and composite materials, which is applied in the field of preparation of polypyrrole nanowires-graphene composite materials, can solve the problem of low electrical conductivity at the same time, and achieve the effects of short time, controllable operation process and high electrical conductivity

Inactive Publication Date: 2012-07-04
SOUTHEAST UNIV
View PDF4 Cites 21 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006]Technical content: The purpose of the present invention is to overcome the shortcoming that the final product exists in the form of powder while the electrical conductivity

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 polypyrrole nanometer wire-graphene composite material
  • Method for preparing polypyrrole nanometer wire-graphene composite material
  • Method for preparing polypyrrole nanometer wire-graphene composite material

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0032] Example 1

[0033] (1) Configure electrolyte: Weigh 3.08g disodium hydrogen phosphate and 0.08g lithium perchlorate, add 50ml deionized water, and configure into a mixed electrolyte containing 0.2M disodium hydrogen phosphate and 0.01M lithium perchlorate, Stir with a magnetic stirrer for 30 min. According to the ratio of pyrrole and graphene with a mass percentage of 90%:10%, weigh 0.5g (0.075M) of pyrrole monomer into the electrolyte, and magnetically stir for 10 minutes.

[0034] (2) Preparation of polypyrrole nanowire / graphene composite material: add 0.06 g of graphene to the above solution, ultrasonicate for 30 minutes and then stand still to obtain a uniformly dispersed mixed solution. The polymerization experiment was carried out in a three-electrode system controlled by an electrochemical workstation, with a nickel sheet as a working electrode, a platinum sheet as a counter electrode, and a saturated calomel electrode as a reference electrode. Using the potentiosta...

Example Embodiment

[0037] Example 2

[0038] (1) Configure electrolyte: Weigh 3.08g disodium hydrogen phosphate and 0.08g lithium perchlorate, add 50ml deionized water, and prepare a mixed electrolyte containing 0.2M disodium hydrogen phosphate and 0.01M lithium perchlorate. Stir with a magnetic stirrer for 30 min. According to the ratio of pyrrole and graphene with a mass percentage of 60%:40%, weigh 0.5g (0.075M) of pyrrole monomer into the electrolyte, and magnetically stir for 10 minutes.

[0039] (2) Preparation of polypyrrole nanowire / graphene composite material: 0.34 g of graphene was added to the above solution, ultrasonicated for 30 minutes, and then allowed to stand to obtain a uniformly dispersed mixed solution. The polymerization experiment was carried out in a three-electrode system controlled by an electrochemical workstation, with a nickel sheet as a working electrode, a platinum sheet as a counter electrode, and a saturated calomel electrode as a reference electrode. Using the poten...

Example Embodiment

[0042] Example 3

[0043] (1) Configure electrolyte: Weigh 3.08g disodium hydrogen phosphate and 0.08g lithium perchlorate, add 50ml deionized water, and prepare a mixed electrolyte containing 0.2M disodium hydrogen phosphate and 0.01M lithium perchlorate. Stir with a magnetic stirrer for 30 min. According to the ratio of pyrrole and graphene with a mass percentage of 80%:20%, 0.85g (0.125M) of pyrrole monomer was added to the electrolyte and magnetically stirred for 10 minutes.

[0044] (2) Preparation of polypyrrole nanowire / graphene composite material: Weigh 0.21 g of graphene and add it to the above-mentioned solution, sonicate for 30 minutes and then stand to obtain a uniformly dispersed mixed solution. The polymerization experiment was carried out in a three-electrode system controlled by an electrochemical workstation, with a nickel sheet as a working electrode, a platinum sheet as a counter electrode, and a saturated calomel electrode as a reference electrode. Using the p...

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

Provided is a method for preparing a polypyrrole nanometer wire-graphene composite material. Pyrrole monomer and graphene powder are added in prepared disodium hydrogen phosphate lithium perchlorate aqueous solution with certain concentration according to certain proportion, even suspension liquid is obtained after ultrasonic dispersion, an experiment is carried out in a three-electrode system controlled by an electrochemical workstation, an electrochemical method is adopted, and the polypyrrole nanometer wire-graphene composite material is obtained through polymerization on an electric conduction substrate. The method is simple in process, short in time, controllable in operation procedure and low in cost. The composite material is high in conductivity rate, capable of serving as electrode materials to be applied to a fuel battery, capable of being applied to supercapacitors, lithium batteries, sensors and the like.

Description

technical field [0001] The invention relates to a preparation method of a polypyrrole nanowire-graphene composite material, in particular to a method for forming a polypyrrole nanowire / graphene composite material by an electrochemical method using disodium hydrogen phosphate and lithium perchlorate as electrolytes. Background technique [0002] Polypyrrole, a conductive polymer with conjugated π-bonds, is widely used in electrode materials, supercapacitors, Fields such as biosensors have been paid attention to by researchers since their discovery. In addition to the characteristics of ordinary film-like polypyrrole, polypyrrole nanowires usually have an order of magnitude higher electrical conductivity than ordinary polypyrrole (see "Controlling the Morphology of Electronically Conductive Polymers", Penner, R. M., Martin, C. R, J . Electrochem. Soc., 133, 1986, 2206-2207), which makes the application of polypyrrole nanowires more advantageous in electrodes. In order to ob...

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): H01M4/60H01M4/90H01G9/042
CPCY02E60/12Y02E60/50Y02E60/13Y02E60/10
Inventor 赵志伟陈永强潘丽坤
Owner SOUTHEAST UNIV
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