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

Method for preparing carbon-loaded nano high-entropy alloy particle composite material

A technology of high-entropy alloys and composite materials, which is applied in the field of preparation of carbon-supported nano-high-entropy alloy particle composite materials, can solve the problems of high price and restrictions on the research and application of nano-high-entropy alloys and their composite materials, and achieve low cost, The effect of the simple operation of the preparation process

Active Publication Date: 2020-10-13
UNIV OF SCI & TECH BEIJING
View PDF14 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Schuhmann (Advanced Energy Materials 8.34(2018):1802269) prepared nano high-entropy alloy materials by sputtering metals into ionic liquids. The above work has made important contributions to the research and application of nano high-entropy alloys and their composite materials. contribution, but the above work requires the use of expensive special equipment, which greatly limits the research and application of nano high-entropy alloys and their composite materials. Therefore, a method with low cost and simple operation is used to prepare Nano high-entropy alloys and their composite materials are very necessary for their research and application

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
  • Method for preparing carbon-loaded nano high-entropy alloy particle composite material
  • Method for preparing carbon-loaded nano high-entropy alloy particle composite material
  • Method for preparing carbon-loaded nano high-entropy alloy particle composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A method for preparing a carbon-loaded nano high-entropy alloy particle composite material, comprising the following steps: (1) citric acid is dissolved in water at a concentration of 0.01g / mL, glycerin is added according to 6 times the molar weight of citric acid, and heated at 90°C Obtain uniform transparent mixed solution 1 under stirring; (2) add the nitrate of Al, Fe, Co, Ni, Cu one by one in mixed solution 1 according to 0.02 of citric acid molar weight, wherein Al, Fe, Co, Ni, The molar ratio of Cu is 1:1:1:1:0.8, and the mixed solution 2 is obtained by stirring; (3) the mixed solution 2 is stirred at 300° C. for 1 hour to obtain an organic network precursor containing multiple metal ions; (4) the precursor In a hydrogen atmosphere, the temperature was raised to 900° C. at 5° C. / min, held for 2 hours, and a high-temperature reduction reaction was carried out to obtain a carbon-supported nano high-entropy alloy particle composite material. The main components of t...

Embodiment 2

[0035] A preparation method of carbon-loaded nanometer high-entropy alloy particle composite material, comprising the following steps: (1) oxalic acid is dissolved in ethanol according to a concentration of 2g / mL, polyethylene glycol is added according to 2 times the molar weight of oxalic acid, and at 80 Obtain uniform and transparent mixed solution 1 under stirring under ℃; (2) add the isopropoxide of Mg, Al, Fe, Ni, Cu, Ti one by one in mixed solution 1 according to 0.02 of the molar weight of oxalic acid, wherein Mg, Al, The molar ratio of Fe, Ni, Cu, and Ti is 0.5:0.5:1:1:0.5:0.3, stirring to obtain mixed solution 2; (3) stirring mixed solution 2 at 250°C for 24 hours to obtain an organic network precursor containing multiple metal ions (4) Raise the temperature of the precursor to 1200°C at 3°C / min in a hydrogen-argon mixed gas atmosphere, keep it warm for 12 hours, and perform a high-temperature reduction reaction to obtain a carbon-supported nano-high-entropy alloy part...

Embodiment 3

[0037] A preparation method of carbon-supported nanometer high-entropy alloy particle composite material, comprising the following steps: (1) malic acid is dissolved in water according to the concentration of 5g / mL, ethylene glycol is added according to 10 times of the molar weight of malic acid, and at 70 Obtain uniform and transparent mixed solution 1 under stirring at ℃; (2) add the nitrates of Mg, Al, Fe, Ni, Co one by one in mixed solution 1 according to 0.05 of the molar weight of malic acid, wherein Mg, Al, Fe, Ni , the molar ratio of Co is 0.5:1:1:1:1, stirring to obtain a mixed solution 2; (3) stirring the mixed solution 2 at 100°C for 8 hours to obtain an organic network precursor containing multiple metal ions; (4) mixing The precursor was heated up to 700°C at 20°C / min in an argon atmosphere, and kept for 4 hours for a high-temperature reduction reaction to obtain a carbon-supported nano-high-entropy alloy particle composite. The transmission electron microscope ph...

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 belongs to the field of new material preparation technology, and provides a method for preparing a carbon-loaded nano high-entropy alloy particle composite material. The operation process is simple, and the production cost is reduced. The method is to prepare a carbon-loaded nano high-entropy alloy particle composite material with adjustable component and controllable size by using ahigh-temperature reduction metal complex polymerization precursor. The specific method is as follows: the metal complex polymerization reaction is used to obtaining an organic network precursor containing multiple metal ions; and the organic network precursor undergoes a high-temperature reduction reaction to obtain the carbon-loaded nano high-entropy alloy particle composite material with high purity and uniform dispersion of alloy particles. According to the invention, the composition of the high-entropy alloy can be adjusted through the selection of metal nitrate, and then the size of thenano high-entropy alloy can be controlled through the adjustment of the molar ratio of the metal salt and the organic polymer and the selection of the complexing agent.

Description

technical field [0001] The invention belongs to the field of novel material preparation technology, and in particular relates to a preparation method of a carbon-loaded nanometer high-entropy alloy particle composite material. Background technique [0002] High-entropy alloy is a new type of alloy material. Compared with traditional alloys, high-entropy alloy has the characteristics of adjustable performance due to its unique composition. Performance opens up new design approaches. Therefore, high-entropy alloys have important application prospects in the fields of nuclear energy, high and low temperature resistant devices, and solar thermal energy utilization devices. [0003] The preparation of high-entropy alloy powder is of great significance to the research and application of alloy properties. Chinese patent 201710819270.9 adopts gas atomization method and mechanical alloying method to prepare high-entropy alloy powder, and the average particle size of the alloy powde...

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): B22F9/26B22F9/24B22F1/00B82Y40/00
CPCB22F9/26B22F9/24B82Y40/00B22F1/054
Inventor 曹文斌肖婷匡健磊蒲浩刘文秀
Owner UNIV OF SCI & TECH BEIJING
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