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

Preparation method and application of nitrogen-doped porous carbon nano sheet composite material

A technology of nitrogen-doped porous carbon and composite materials, which is applied in the direction of electrical components, battery electrodes, circuits, etc., can solve the problems of harsh preparation conditions, limited large-scale application of materials, and expensive catalysts, so as to improve battery activity and facilitate Implementation, the effect that is not easy to be

Inactive Publication Date: 2015-01-07
NANKAI UNIV
View PDF5 Cites 35 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the catalysts prepared by the above methods are expensive or the raw materials are expensive, or the preparation conditions are harsh, which limits the further large-scale application of their materials

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
  • Preparation method and application of nitrogen-doped porous carbon nano sheet composite material
  • Preparation method and application of nitrogen-doped porous carbon nano sheet composite material
  • Preparation method and application of nitrogen-doped porous carbon nano sheet composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0020] A method for preparing a nitrogen-doped porous carbon nanosheet composite material, the nitrogen-doped porous carbon nanosheet composite material has iron carbide nanoparticles embedded in nitrogen-doped mesoporous carbon nanosheets, and the iron carbide nanoparticles are surrounded by The graphitized carbon layer is coated, and the carbon-coated iron carbide nanoparticles are evenly distributed in the carbon nanosheet composite material. The preparation steps are as follows:

[0021] 1) Dissolve 9 mmol o-phenanthroline in 30 g ethanol, then add 3 mmol ferrous sulfate, stir until ferrous sulfate dissolves, and add 8 g melamine under stirring conditions, continue stirring until uniform gel, and finally put it in 80 ℃ oven-dried for 12 h, and ground into powder to obtain the precursor;

[0022] 2) Put the above-mentioned 3g precursor into a quartz boat, pass inert gas nitrogen into the tube furnace, the nitrogen flow rate is 20mL / mim, raise the temperature to 900°C and ke...

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 preparation method of a nitrogen-doped porous carbon nano sheet composite material. The preparation method comprises the steps of performing high-temperature carbonization treatment on a mixture which consists of melamine and adjacent phenanthroline iron and serves as a precursor in a tubular furnace under an inert gas environment, and then removing dissolved iron compounds from an acidic solution to obtain a porous carbon nano sheet layer with carbon-coated iron carbide nano particles. The preparation method has the advantages that the technology is simple, the raw materials are cheap, and operation is easy to implement; in the prepared composite material, iron carbide is uniformly dispersed in the carbon nano sheet layer, so that the composite material is high in specific surface area and pore volume; iron carbide nano particles are completely coated by graphitized carbon, so that oxidization and corrosion are hardly caused; the composite material is stable in acidic electrolyte, and the battery activity can be effectively improved; when used as an electrocatalyst, the composite material is relatively high in electrocatalysis efficiency; the preparation method has an important value and significance in the field of preparation of doped carbon nano composite materials and electrocatalysis of proton membrane fuel batteries.

Description

technical field [0001] The invention relates to the preparation of a composite material, in particular to a preparation method and application of a nitrogen-doped porous carbon nano sheet composite material. Background technique [0002] Carbon-coated metal nanoparticles are a new type of nano-carbon-metal composite materials, which have shown broad application prospects in high-density information storage, catalysis, magnetic materials, and biomedicine, and have attracted great interest. Among them, coating metal nanoparticles with carbon as a shell can effectively protect the stability of metal nanoparticles, such as overcoming their agglomeration, oxidation and corrosion. [0003] There are many methods for preparing carbon-coated nanoparticles, such as arc discharge method, chemical vapor deposition method, pyrolysis method, liquid phase impregnation carbonization method, etc. At present, the preparation methods of carbon-coated metal nanoparticles reported in the lite...

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): H01M4/90
CPCH01M4/90Y02E60/50
Inventor 陈铁红刘优林
Owner NANKAI UNIV
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