Carbon-loaded pyridine-nitrogen-modified cobalt-phthalocyanine catalyst, and preparation method and application thereof

A technology of carbon-supported pyridine nitrogen and catalysts, which is applied in the direction of physical/chemical process catalysts, chemical instruments and methods, organic compounds/hydrides/coordination complex catalysts, etc. Complicated methods and other problems, to achieve the effect of improving electrode activity, low cost, and simple preparation method

Inactive Publication Date: 2012-06-13
DONGHUA UNIV
View PDF1 Cites 17 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, its synthesis method is complicated and its price is relatively high, especially for proton exchange membrane fuel cells used in strong acidic media, which have high activation polarization, and its activity and stability are still far behind those of Pt.

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
  • Carbon-loaded pyridine-nitrogen-modified cobalt-phthalocyanine catalyst, and preparation method and application thereof
  • Carbon-loaded pyridine-nitrogen-modified cobalt-phthalocyanine catalyst, and preparation method and application thereof
  • Carbon-loaded pyridine-nitrogen-modified cobalt-phthalocyanine catalyst, and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Preparation of 10%Py30%CoPc / C catalyst: Weigh 0.0300g cobalt phthalocyanine, 0.0100g pyridine and 0.0600g Vulcan XC-72R carbon powder and place them in an agate mortar. Then add 10ml of methanol of analytical grade and grind thoroughly until the methanol is completely volatilized. The agate mortar and the mixture contained therein were put into a vacuum oven at 40° C. for 1 h to be vacuum-dried to obtain the desired CoPc-Py / C catalyst, and the mass ratio of CoPc to Py was 3:1.

Embodiment 2

[0030] Preparation of 15%Py25%CoPc / C catalyst: Weigh 0.0250g cobalt phthalocyanine, 0.0150g pyridine and 0.0600g Vulcan XC-72R carbon powder and put them in an agate mortar. Then add 10ml of ethanol of analytical grade and grind thoroughly until the ethanol evaporates completely. The agate mortar and the mixture contained therein were put into a vacuum oven at 40° C. for 1 h to be vacuum-dried to obtain the desired CoPc-Py / C catalyst, and the mass ratio of CoPc to Py was 5:3.

Embodiment 3

[0032] Preparation of 20%Py20%CoPc / C catalyst: 0.0200g cobalt phthalocyanine, 0.0200g pyridine and 0.0600g Vulcan XC-72R carbon powder were weighed and placed in an agate mortar. Then add 10ml of methanol of analytical grade and grind thoroughly until the methanol is completely volatilized. Put the agate mortar and the mixture inside into a vacuum oven at 40° C. for 1 h in vacuum to obtain the desired CoPc-Py / C catalyst, and the mass ratio of CoPc to Py is 1:1.

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 carbon-loaded pyridine-nitrogen-modified cobalt-phthalocyanine catalyst, and a preparation method and application thereof. The catalyst comprises a carbon material, pyridine or pyridine derivative and cobalt-phthalocyanine in mass ratio of 1:(0.01-1):(0.01-1). The preparation method comprises the following steps of: (1) dissolving the carbon material, the pyridine or pyridine derivative and the cobalt-phthalocyanine in a solvent, grinding until methanol is completely volatilized, and drying to obtain catalyst precursor; and (2) performing roasting reduction on the precursor under the protective atmosphere of nitrogen to obtain the carbon-loaded pyridine-nitrogen-modified cobalt-phthalocyanine catalyst. Carbon-loaded nano cobalt-phthalocyanine is modified by pyridine nitrogen, so molecular oxygen can be activated effectively, and electrode activity is greatly improved; and the operation condition and the preparation process are easy, and the catalyst is easy to prepare, is low in cost, and can be used for commercial production of fuel cells and zinc air batteries; and dependence on noble metal Pt is greatly reduced.

Description

technical field [0001] The invention belongs to the field of fuel cell catalysts, in particular to a carbon-supported pyridine nitrogen-modified cobalt phthalocyanine catalyst and its preparation method and application. Background technique [0002] A fuel cell is a power generation device that directly converts chemical energy stored in fuel and oxidant into electrical energy, and has the advantages of high efficiency, low pollution, and diversification. Among them, polymer electrolyte fuel cells (PEFCs) use polymer electrolyte membranes as electrolytes to provide carrier conduction channels. Compared with other fuel cells, they can start quickly at room temperature and can quickly change output power according to load requirements. The most promising future electric vehicles, distributed power stations, backup power and ideal alternative power sources for portable appliances. So far, fuel cells are still far from the real industrial application, the main reason is that so...

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): B01J31/22H01M4/86
CPCY02E60/50
Inventor 乔锦丽戴先逢丁蕾徐丽
Owner DONGHUA 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