Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

Transitional metal/sulfur/nitrogen co-doped carbon composite material used for fuel cell electrocatalyst and preparation method of composite material

A technology of carbon composite materials and transition metals, applied in battery electrodes, circuits, electrical components, etc., can solve the problems of complicated preparation methods and unfavorable large-scale production of catalysts, and achieve the effect of improving catalytic activity and stability and improving dispersion

Inactive Publication Date: 2018-11-20
XUZHOU NORMAL UNIVERSITY
View PDF4 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the preparation methods described in these patents are still too complicated, which is not conducive to the large-scale production of catalysts.

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
  • Transitional metal/sulfur/nitrogen co-doped carbon composite material used for fuel cell electrocatalyst and preparation method of composite material
  • Transitional metal/sulfur/nitrogen co-doped carbon composite material used for fuel cell electrocatalyst and preparation method of composite material
  • Transitional metal/sulfur/nitrogen co-doped carbon composite material used for fuel cell electrocatalyst and preparation method of composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] 1. Ultrasonically disperse 2g of carbon black in 250mL of water in a single-necked flask to obtain a black slurry;

[0030] 2. Add 1.6g of imidazole to the above slurry, and ultrasonically dissolve;

[0031] 3. Add 2mol of Fe(SCN) to the above flask 3 , Ultrasonic dissolution to obtain a uniform feed liquid;

[0032] 4. Put the above liquid into an oven at 100°C to dry to obtain dry powder;

[0033] 5. Put the above powder into a tube furnace, heat-treat at 700°C for 2 hours under a nitrogen atmosphere, and cool to room temperature to obtain a black powder;

[0034] 6. Soak the product obtained by the above heat treatment in 2mol / L sulfuric acid solution at 100°C for 8 hours, then wash with water until neutral, and dry;

[0035] 7. Put the above product into a tube furnace, heat-treat at 700° C. for 2 hours under a nitrogen atmosphere, and cool to room temperature to obtain the final catalyst.

[0036] Catalyst TEM that present embodiment obtains, EDS and XRD such a...

Embodiment 2

[0038] 1. Ultrasonic disperse 1 g of carbon nanotubes in 500 mL of water in a single-necked flask to obtain a black slurry;

[0039] 2. Add 5g of melamine to the above slurry and dissolve it ultrasonically;

[0040] 3. Add 1mol of Co(SCN) to the above flask 2 , Ultrasonic dissolution to obtain a uniform feed liquid;

[0041] 4. Put the above liquid into an oven at 80°C to dry to obtain dry powder;

[0042] 5. Put the above powder into a tube furnace, heat-treat at 900°C for 4 hours under a nitrogen atmosphere, and cool to room temperature to obtain a black powder;

[0043] 6. Soak the product obtained by the above heat treatment in a 3mol / L hydrochloric acid solution and treat it at 80°C for 12 hours, then wash it with water until neutral, and dry it;

[0044] 7. Put the above product into a tube furnace, heat-treat at 900° C. for 4 hours under a nitrogen atmosphere, and cool to room temperature to obtain the final catalyst.

[0045] Catalyst TEM that present embodiment ob...

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 a transitional metal / sulfur / nitrogen co-doped carbon composite material used for a fuel cell negative electrode electrocatalyst and a preparation method of the composite material. The catalyst is prepared by taking a mixture of carbon carrier, transition metal thiocyanate and nitrogen-containing small molecules as a precursor through high-temperature heat treatment; and the catalyst is provided with transitional metal / sulfur / nitrogen co-doped carbon with a porous nanostructure. The preparation method adopted in the invention is simple and effective, and the prepared catalyst has an efficient oxygen reduction reaction (ORR) catalytic performance and can be applied to a negative electrode electrocatalyst of a proton exchange membrane fuel cell, an alkaline fuel cell,a direct methanol fuel cell and the like.

Description

technical field [0001] The invention relates to a transition metal / sulfur / nitrogen co-doped carbon composite material which can be used as a fuel cell electrocatalyst and a preparation method thereof. technical background [0002] With the increasing depletion of fossil energy, environmental pollution and climate change, clean energy has attracted great attention from all over the world. Fuel cells have the advantages of cleanliness, high efficiency, high power density, and low-temperature fast start-up, and are widely used in vehicle power supplies, portable power supplies, and distributed power generation. Among them, the cathode oxygen reduction reaction (ORR) is the main factor limiting the wide application of fuel cells. For a long time, Pt has been used as cathode electrocatalyst, but the resource of Pt is limited and the price is high, and the commercialization of fuel cells is facing the problem of high cost. Therefore, the research and development of non-platinum ...

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): H01M4/88H01M4/90
CPCH01M4/8825H01M4/90H01M4/9041Y02E60/50
Inventor 刘飒杨峥陈晓文李梦丽刘利文王岩吕文劼高京夏王思
Owner XUZHOU NORMAL UNIVERSITY
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
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