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

Preparation method and applications of carbon nano-tube-supported transition metal oxide material

A technology of carbon nanotubes and transition metals, applied in the field of material chemistry, can solve the problems of high cost and complicated process, and achieve the effect of low cost, simple preparation process and uniform shape

Inactive Publication Date: 2018-10-19
UNIV OF SHANGHAI FOR SCI & TECH
View PDF4 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The preparation process of the present invention is simple, low in cost, good in repeatability, harmless to the environment, and can realize industrialization, effectively overcoming the disadvantages of the existing preparation methods such as complicated process and high cost

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
  • Preparation method and applications of carbon nano-tube-supported transition metal oxide material
  • Preparation method and applications of carbon nano-tube-supported transition metal oxide material
  • Preparation method and applications of carbon nano-tube-supported transition metal oxide material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] The preparation process of CNTs loaded transition metal oxide material containing Mn element doping is as follows:

[0040] (1) Anneal the CNTs. The annealing temperature of the carbon nanotubes is 500°C, the time is 30min, and the heating rate is 3°C / min. Then, dissolve, ultrasonic, and filter to form a film. The ultrasonic power of the carbon nanotubes is 225W, and the ultrasonic time is 30min ( Purpose: CNTs are evenly dispersed in the solution), and the suction filter carbon membrane is cut into a circular carbon membrane with a diameter of 12mm and a weight of about 1.2±0.05mg.

[0041] (2) Dissolve 1.74g of cobalt nitrate hexahydrate, 0.436g of nickel nitrate hexahydrate, 0.37g of ammonium fluoride, and 1.2g of urea in 80ml of deionized water, and form a pink solution under magnetic stirring;

[0042] (3) Add 0.151g of manganese chloride (at this time, the molar ratio of cobalt nitrate hexahydrate to manganese chloride is 1:0.2) into step 2), stir it with magnetic...

Embodiment 2

[0048] The preparation process of CNTs-loaded transition metal oxide materials containing different proportions of Mn doped is as follows:

[0049] (1) Anneal the CNTs. The annealing temperature of the carbon nanotubes is 500°C, the time is 30min, and the heating rate is 3°C / min. Then, dissolve, ultrasonic, and filter to form a film. The ultrasonic power of the carbon nanotubes is 225W, and the ultrasonic time is 30min ( Purpose: CNTs are evenly dispersed in the solution), and the suction filter carbon membrane is cut into a circular carbon membrane with a diameter of 12mm and a weight of about 1.2±0.05mg.

[0050] (2) Dissolve 1.74g of cobalt nitrate hexahydrate, 0.436g of nickel nitrate hexahydrate, 0.37g of ammonium fluoride, and 1.2g of urea in 80ml of deionized water, and form a pink solution under magnetic stirring.

[0051] (3) Add manganese chloride (at this time, the molar ratios of cobalt nitrate hexahydrate and manganese chloride are: 1:0.5, 1:0.1, 1:0.4 respectivel...

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
The average diameteraaaaaaaaaa
The average diameteraaaaaaaaaa
The average diameteraaaaaaaaaa
Login to View More

Abstract

The invention relates to a preparation method and applications of a carbon nano-tube-supported transition metal oxide material. The preparation method comprises: annealing CNTs, dissolving, carrying out ultrasonic treatment, and carrying out suction filtration and film forming; dissolving 1.74 g of cobalt nitrate hexahydrate, 0.436 g of nickel nitrate hexahydrate, manganese chloride, ammonium fluoride, urea and cetyltrimethylammonium bromide in 80 ml of deionized water, wherein a molar ratio of cobalt nitrate hexahydrate to manganese chloride is 0.05-0.4, and a molar ratio of cobalt nitrate hexahydrate to ammonium fluoride to urea to cetyltrimethylammonium bromide is 6:9:20:4; and transferring the formed solution and the carbon nano-tubes into a reaction kettle, and preparing the carbon nano-tube-supported transition metal oxide material through a hydrothermal method. According to the present invention, the preparation process is simple, the cost is low, the prepared material has advantages of good structure uniformity, large specific surface area and excellent electrochemical performance, and the disadvantages that the cost of the precious metal catalyst is high, the preparation process is complicated and the industrialization is difficult to achieve are overcome.

Description

technical field [0001] The invention relates to a preparation method and application of a carbon nanotube-loaded transition metal oxide material, in particular to the technical field of material chemistry. Oxygen reduction catalysts for metal-air batteries. Background technique [0002] As we all know, the energy crisis caused by excessive exploitation of fossil fuels and resource depletion, as well as the harm caused by the use of these fuels to environmental pollution and human health, is a serious problem facing society today. The resulting high power and high energy density The growing demand for renewable green energy and energy storage devices has rapidly promoted the development of electrochemical energy storage devices. In recent years, metal-air batteries have attracted much attention due to their low operational risk, low emissions, high transport capacity, high energy density, light weight, and environmental friendliness. They are showing unprecedented great cha...

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): H01M4/90H01M12/06
CPCH01M4/9016H01M4/9083H01M12/06
Inventor 李生娟吴昆
Owner UNIV OF SHANGHAI FOR SCI & 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