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

Non-noble metal catalyst and preparation method thereof

A non-precious metal and catalyst technology, applied in the field of electrochemical energy, can solve the problems of catalytic activity gap and low catalytic activity, and achieve the effects of low cost, good catalytic performance and simple operation

Inactive Publication Date: 2019-05-03
FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI
View PDF5 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the catalytic activity of the non-noble metal catalysts obtained so far is far lower than that of platinum-based catalysts due to the single active site, especially in acidic media, the catalytic activity of non-noble metal catalysts is still far behind that of platinum-based 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
  • Non-noble metal catalyst and preparation method thereof
  • Non-noble metal catalyst and preparation method thereof
  • Non-noble metal catalyst and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0066] Aromatic nitrile (isophthalonitrile) and metal oxide nanoparticles (Fe 2 o 3 Nanorods, particle size 30-300nm) are dry-blended at a molar ratio of 3:1, the dry-blended sample is protected under inert conditions (nitrogen), and the inorganic salt of Lewis acid (chlorinated Zinc) after grinding, transferred to a 14mL airtight device (sealed quartz tube) under the protection of inert gas (nitrogen). Then put it in a muffle furnace, heat up to 700°C at a heating rate of 5°C / min and heat for 24 hours, take it out and grind it, add 0.1M hydrochloric acid solution, pickle at 80°C for 12 hours, suction filter, wash with water, and dry to obtain non-precious metals Catalyst, recorded as sample 1#.

Embodiment 2

[0068] Aromatic nitrile (isophthalonitrile) and metal oxide nanoparticles (Fe 2 o 3 Nanorods, particle size 30-300nm) are dry-blended at a molar ratio of 4:1, the dry-blended sample is protected under inert conditions (nitrogen), and the inorganic salt of Lewis acid (chlorinated Zinc) after grinding, transferred to a 14mL airtight device (sealed quartz tube) under the protection of inert gas (nitrogen). Then put it in a muffle furnace, heat up to 700°C at a heating rate of 5°C / min and heat for 24 hours, take it out and grind it, add 0.1M hydrochloric acid solution, pickle at 80°C for 12 hours, suction filter, wash with water, and dry to obtain non-precious metals Catalyst, denoted as sample 2#.

Embodiment 3

[0070] Aromatic nitrile (isophthalonitrile) and metal oxide nanoparticles (Fe 2 o 3 Nanorods, particle size 30-300nm) are dry-blended at a molar ratio of 2:1, the dry-blended sample is protected under inert conditions (nitrogen), and the inorganic salt of Lewis acid (chlorinated Zinc) after grinding, transferred to a 14mL airtight device (sealed quartz tube) under the protection of inert gas (nitrogen). Then put it in a muffle furnace, heat up to 700°C at a heating rate of 5°C / min and heat for 24 hours, take it out and grind it, add 0.1M hydrochloric acid solution, pickle at 80°C for 12 hours, suction filter, wash with water, and dry to obtain non-precious metals Catalyst, denoted as sample 3#.

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

PropertyMeasurementUnit
particle diameteraaaaaaaaaa
pore sizeaaaaaaaaaa
pore sizeaaaaaaaaaa
Login to View More

Abstract

The invention discloses a non-noble metal catalyst and a preparation method thereof. The non-noble metal catalyst is obtained by subjecting a first mixture containing an aromatic nitrile compound anda metal oxide in the presence of a nonactive gas and Lewis acid to heat treatment, wherein the metal oxide is a nanoparticle. The non-noble metal catalyst provided by the invention has good catalyticactivity, methanol resistance and stability, is low in production cost, and can be produced and applied on a large scale in fuel cells.

Description

technical field [0001] The application relates to a non-noble metal catalyst and a preparation method thereof, belonging to the field of electrochemical energy. Background technique [0002] Proton exchange membrane fuel cells, alkaline fuel cells, methanol fuel cells, and metal-air batteries are devices that directly convert chemical energy in fuel into electrical energy through electrochemical reactions. Due to the advantages of high energy density, high efficiency, low noise, and zero emission, fuel cells have attracted extensive attention. [0003] But the slower kinetics of the oxygen reduction reaction at the cathode becomes one of the main limiting factors for fuel cells. Although platinum-based catalysts are good cathode catalysts, their high price and limited resources seriously hinder the commercial application of fuel cells. Therefore, the development of non-precious metal catalysts with high performance and low cost has become the most promising one in the fiel...

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): H01M4/90H01M4/88H01M8/08H01M8/10H01M8/22H01M12/06B82Y30/00B82Y40/00
CPCY02E60/50Y02P70/50
Inventor 李文木囤荣敏
Owner FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI
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