Unlock instant, AI-driven research and patent intelligence for your innovation.

A kind of highly active oxygen reduction catalyst and its preparation method and application

A catalyst, high activity technology, applied in the direction of structural parts, electrical components, battery electrodes, etc., to achieve the effect of increasing the contact surface area, increasing the number of active sites, and good application prospects

Active Publication Date: 2022-03-18
UNIV OF JINAN
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the research on the preparation of catalysts from biomass materials has achieved good results, there are still many unknown areas about the preparation of catalysts. How to prepare high-performance catalysts using simple methods, extensive and low-cost raw materials is still the main direction of current research.

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
  • A kind of highly active oxygen reduction catalyst and its preparation method and application
  • A kind of highly active oxygen reduction catalyst and its preparation method and application
  • A kind of highly active oxygen reduction catalyst and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] A kind of highly active oxygen reduction catalyst, its preparation method comprises the following steps:

[0042] The frozen tofu was completely thawed at room temperature and dried, then 15 g of dried frozen tofu was added to 40 mL of ultrapure water, soaked for 3 hours, aged for 6 hours, and the soaking and aging operations were repeated 3 times. The soaked and aged frozen tofu was placed in an oven for preliminary drying at 60°C, then placed in a tube furnace, and heated at a rate of 3°C / min in an ammonia gas atmosphere with a gas flow rate of 50 mL / min to maintain the temperature. Burn at 700°C for 3 hours, then cool to get a black product, grind it to get the catalyst, marked as 0% FeCl 3 .

Embodiment 2

[0044] A kind of highly active oxygen reduction catalyst, its preparation method comprises the following steps:

[0045] The frozen tofu is freeze-dried, and then 15g of dried frozen tofu is added to 40mL of 1% FeCl 3 solution, soaked for 3 hours, aged for 6 hours, and repeated the soaking and aging operations 3 times. The soaked and aged frozen tofu was placed in an oven for preliminary drying at 60°C, then placed in a tube furnace, and heated at a rate of 3°C / min in an ammonia gas atmosphere with a gas flow rate of 50 mL / min to maintain the temperature. Burn at 800°C for 3 hours, then cool to get a black product, grind it to get the catalyst, marked as 1% FeCl 3 .

Embodiment 3

[0047] Freeze-dry the frozen tofu, then get 15g of dried frozen tofu and add it to 40mL of 2% FeCl 3 solution, soaked for 3 hours, aged for 6 hours, and repeated the soaking and aging operations 3 times. The soaked and aged frozen tofu was placed in an oven for preliminary drying at 60°C, then placed in a tube furnace, and heated at a rate of 3°C / min in an ammonia gas atmosphere with a gas flow rate of 50 mL / min to maintain the temperature. Burn at 800°C for 3 hours, then cool to get a black product, grind it to get the catalyst, marked as 2% FeCl 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
current densityaaaaaaaaaa
quality scoreaaaaaaaaaa
quality scoreaaaaaaaaaa
Login to View More

Abstract

The invention discloses a highly active oxygen reduction catalyst, its preparation method and application, and belongs to the field of catalysts. The preparation method of the highly active oxygen reduction catalyst comprises the following steps: (1) freezing tofu to obtain frozen tofu; (2) preparation of ferric chloride solution; (3) preparation of oxygen reduction catalyst. The method for preparing the oxygen reduction catalyst provided by the present invention has wide sources of raw materials and low raw material cost; the preparation method is simple and easy to operate; the equipment required for catalyst preparation is simple, and the preparation process is free of pollution and industrial "three wastes". The prepared catalyst has good catalytic oxygen reduction performance, many catalytic active sites and high catalytic efficiency, so it has good application prospects in the field of energy cells, especially fuel cells.

Description

technical field [0001] The invention relates to a catalyst, in particular to a highly active oxygen reduction catalyst, its preparation method and application. Background technique [0002] Due to the rapid growth of energy demand, the energy crisis faced by human beings is becoming more and more intense. Especially with the enhancement of people's environmental protection awareness, people pay more and more attention to the development of new, efficient and low-cost green energy to replace traditional fossil energy. Among the various new energy sources developed, new energy sources such as fuel cells and metal-air batteries are attracting more and more attention due to their high-efficiency energy conversion and energy storage performance. However, the large-scale application of this type of energy is still facing a series of problems. For example, the catalysts used in batteries are mainly noble metal catalysts. Therefore, the development of low-cost, high-performance, an...

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): H01M4/86H01M4/96
CPCH01M4/8605H01M4/96Y02E60/50
Inventor 黄太仲孙玥房恒义梁栋孙振国郭中芹
Owner UNIV OF JINAN