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

Synthesis of iron-supported nitrogen-doped porous carbon materials with excellent electrocatalytic oxygen reduction performance

A technology of nitrogen-doped porous carbon and synthesis method, which is applied in nanotechnology, circuits, electrical components, etc. for materials and surface science, can solve the problems of high price, inactivation, and easy poisoning, and achieve low price and environmental Small pollution, huge economic and social benefits

Active Publication Date: 2020-09-08
ZHEJIANG UNIV OF TECH
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to its high price, easy poisoning and inactivation, it is imminent to develop low-cost and reliable alternatives.

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
  • Synthesis of iron-supported nitrogen-doped porous carbon materials with excellent electrocatalytic oxygen reduction performance
  • Synthesis of iron-supported nitrogen-doped porous carbon materials with excellent electrocatalytic oxygen reduction performance
  • Synthesis of iron-supported nitrogen-doped porous carbon materials with excellent electrocatalytic oxygen reduction performance

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0029] A kind of synthetic method of the nitrogen-doped porous carbon material of iron load with excellent electrocatalytic oxygen reduction performance, comprises the steps:

[0030] 1) Mix 150 parts of pentacyanoammonium ferric acid sodium salt, 600 parts of molecular sieve SBA-15, 2000 parts of [VMlm]DCA and 5 parts of anhydrous N,N-dimethylformamide solution (DMF) and ultrasonically homogenize ; Add it to a hydrothermal kettle, heat it at 80-100°C for 6 hours, add 20 parts of anhydrous N,N-dimethylformamide solution and transfer it to a flask; take 20 parts of 2,2'-azobis (Isobutyronitrile) dissolved in 5 parts of anhydrous N,N-dimethylformamide solution, ultrasonically uniform, poured into the flask; nitrogen gas was passed through the above flask for 30-40 minutes, sealed, and transferred to 60-80°C oil In the bath, stop the reaction after stirring for 6-10 hours;

[0031] 2) Drop the solution in step 1) into 200 parts of acetone solution. After standing still, suction ...

Embodiment 1

[0037] Preparation of nitrogen-doped porous carbon material Fe@NCNTs-800 supported by metallic iron:

[0038]Measure 5 mL of N,N-dimethylformamide solution (DMF) into a 50 mL beaker, add 150 mg of pentacyanoaminoferric acid sodium salt and 2000 mg of [VMlm]DCA, after ultrasonication, the mixture Transfer to the liner of a hydrothermal kettle, heat at 80°C for 6 hours, add 20 mL of N,N-dimethylformamide solution (DMF) and transfer to a 100 mL flask. Measure another 5 mL of N,N-dimethylformamide solution (DMF) into a 50 mL beaker, add 20 mg of 2,2’-azobis(isobutyronitrile), and add it into the above-mentioned flask after ultrasonication. After blowing nitrogen into the above flask for 40 minutes, seal the flask and transfer it to an oil bath at 70°C, stir and heat for 8 hours, stop the reaction, cool to room temperature, drop it into 200 mL of acetone solution, and let it stand for 2 hours Afterwards, the product was obtained by suction filtration. The product was dried in a v...

Embodiment 2

[0041] Preparation of nitrogen-doped porous carbon material Fe@NCNTs-400 supported by metallic iron:

[0042] Measure 5mL of N,N-dimethylformamide solution (DMF) into a 50 mL beaker, add 150mg of sodium pentacyanoaminoferrate and 2000 mg of [VMlm]DCA, after ultrasonication, transfer the mixture to water In the inner tank of the hot kettle, after heating with water at 80°C for 6 hours, add 20 mL of N,N-dimethylformamide solution (DMF) and transfer to a 100 mL flask. Measure another 5mL of N,N-dimethylformamide solution (DMF) into a 50 mL beaker, add 20mg of 2,2’-azobis(isobutyronitrile), and add it into the above flask after ultrasonication. After blowing nitrogen into the above flask for 40 minutes, seal the flask and transfer it to an oil bath at 70°C, stir and heat for 8 hours, stop the reaction, cool to room temperature, drop it into 200 mL of acetone solution, and let it stand, The product was obtained by suction filtration. The product was dried in a vacuum oven at 80° ...

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 synthesis method of an iron-loaded nitrogen-doped porous carbon material with excellent electro-catalytic oxygen reduction performance. The synthesis method comprises the following steps: after uniformly mixing DMF (Dimethyl Formamide), pentacyanoammineferroate, SBA-15 and [VMlm]DCA by ultrasounds, carrying out hydrothermal treatment; adding DMF and transferring into a flask; then adding 2,2'-azobis(isobutyronitrile) and continually carrying out ultrasonic treatment; after continually stirring in an oil bath, stopping reaction; dropwise adding an acetone solution andstanding; filtering to obtain sediment; drying and grinding to obtain a powder product; calcining in a tubular furnace to obtain a black powder product; treating the black powder product with dilutedhydrofluoric acid to obtain the iron-loaded nitrogen-doped porous carbon material. The synthesis method disclosed by the invention has the beneficial effects that metal iron is used as a metal sourceand has abundant global production and low price; the material is easy to prepare and pollution to the environment is very small; the obtained material has good electro-catalytic oxygen reduction performance, good circulating stability and stable methanol virus resistance, has great economic benefits and social benefits and has a very wide application prospect.

Description

technical field [0001] The invention relates to the field of inorganic nanometer materials and electrochemistry, in particular to a method for synthesizing an iron-loaded nitrogen-doped porous carbon material with excellent electrocatalytic oxygen reduction performance. Background technique [0002] A fuel cell is a power generation device that directly converts chemical energy stored in fuel and oxidant into electrical energy isothermally, efficiently, and environmentally friendly. Due to its high energy conversion efficiency, low pollution, low noise, high continuity and reliability, it has been regarded as the most environmentally friendly and reliable power generation device. However, due to its high cost and immature technology, it is still difficult to industrialize. The cathode oxygen reduction reaction is an important part of the fuel cell, and commercial cathode oxygen reduction catalysts mainly use Pt and Pt alloys. However, due to its high price, easy poisoning ...

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): H01M4/88H01M4/90B82Y30/00
CPCB82Y30/00H01M4/8825H01M4/9075Y02E60/50
Inventor 庄桂林张少华王建国
Owner ZHEJIANG UNIV OF TECH
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