Preparation method and application of silver-copper bimetal nanofibers

A technology of bimetallic nano and copper nanofibers, applied in metal processing equipment, nanotechnology, conductive layers on insulating carriers, etc., can solve problems such as moiré, high cost, and limitations, achieve high aspect ratio and improve purity , the effect of increasing the density of crystal nuclei

Active Publication Date: 2020-12-11
昆明贵研新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The flexible transparent conductive film prepared by the nano-metal grid has good electrical conductivity, but there are still moiré patterns and high cost, so the application is limited

Method used

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  • Preparation method and application of silver-copper bimetal nanofibers
  • Preparation method and application of silver-copper bimetal nanofibers
  • Preparation method and application of silver-copper bimetal nanofibers

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preparation example Construction

[0072] The embodiment of the present invention discloses a method for preparing silver-copper bimetallic nanofibers, comprising the following steps:

[0073] (1) Mix and stir the copper salt solution, the organic halide solution, the capping agent solution and the reducing agent solution evenly to obtain solution A;

[0074] (2) Transfer the solution A to a high-pressure reactor and raise the temperature to 80° C. to 300° C. for 20-1440 minutes to obtain a copper nanofiber stock solution;

[0075] (3) Separating and purifying the copper nanofiber stock solution to obtain copper nanofibers;

[0076] (4) After adding an organic protective agent solution and a silver salt solution to the copper nanofiber aqueous solution, mix and stir evenly to obtain a solution B;

[0077] (5) Transfer the solution B to a three-necked flask, and stir for 10-360min under the protection of an inert gas to obtain a stock solution of silver-copper bimetallic nanofibers;

[0078] (6) After the silv...

Embodiment 1

[0098] A preparation method of silver-copper bimetallic nanofibers, specifically as follows:

[0099] (1) 0.398g copper acetate, 0.448g 6-bromohexyltrimethylammonium bromide, 3.01g cetyltrimethylammonium hydroxide, 2.056g tetrabutylammonium borohydride, 0.25g polyvinylpyrrolidone- Polyethylene glycol diblock copolymer (molecular weight M w =100000) and 0.26g of silver acetate were dissolved in water of 80mL, 100mL, 70mL, 100mL, 50mL, and 50mL respectively to form an aqueous solution for subsequent use;

[0100] (2) Put copper acetate solution, 6-bromohexyltrimethylammonium bromide solution, hexadecyltrimethylammonium hydroxide solution and tetrabutylammonium borohydride solution at 15°C with a stirring speed of 10r / s Down mixing 30min, obtains reaction solution A;

[0101] (3) Transfer the reaction solution A to a 500mL high-pressure reactor, raise the temperature to 210°C at a rate of 1°C / min, and fill it with high-purity argon to pressurize to 0.2MPa, and then maintain the...

Embodiment 2

[0107] A preparation method of silver-copper bimetallic nanofibers, specifically as follows:

[0108] (1) 0.235g copper acetate, 0.126g copper acetylacetonate, 0.537g tetrapropylammonium bromide, 5.27g dipalmitoylphosphatidylcholine, 2.056g tetrabutylammonium borohydride, 1.47g polyvinylpyrrolidone-poly Ethylene glycol diblock copolymer (molecular weight M w =500000) and 0.5g of silver nitrate were dissolved in water of 60mL, 40mL, 90mL, 60mL, 80mL, 20mL, and 10mL respectively to form an aqueous solution for subsequent use;

[0109] (2) Mix copper acetate solution, copper acetylacetonate solution, tetrapropylammonium bromide solution, dipalmitoylphosphatidylcholine solution, and tetrabutylammonium borohydride solution at 10°C for 5 minutes at a stirring speed of 15r / s , to obtain the reaction solution A;

[0110] (3) Transfer the reaction solution A into a 400mL autoclave, raise the temperature to 130°C at a rate of 2.5°C / min, fill it with high-purity argon and pressurize it...

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Abstract

The invention discloses a preparation method and application of silver-copper bimetal nanofibers, and belongs to the technical field of nanofiber preparation. The preparation method specifically comprises the following steps: uniformly mixing and stirring a copper salt solution, an organic halide solution, an end-capping reagent solution and a reducing agent solution, transferring the mixture intoa high-pressure reaction kettle, and reacting for 20-1440 minutes to obtain a copper nanofiber stock solution; washing and purifying the copper nanofiber stock solution to obtain copper nanofibers; adding an organic protective agent solution and a silver salt solution into the copper nanofiber solution, uniformly mixing, then transferring the mixture into a three-neck flask, and reacting for 10-360 minutes under the protection of inert gas to obtain a silver-copper bimetal nanofiber stock solution; and washing and purifying the silver-copper bimetal nanofiber stock solution to obtain the silver-copper bimetal nanofibers. The product finally obtained by the method has a high length-diameter ratio, mild reaction conditions, high repeatability and low cost, and is suitable for industrial popularization.

Description

technical field [0001] The invention relates to the technical field of nanofibers, in particular to a preparation method and application of silver-copper bimetallic nanofibers. Background technique [0002] Flexible transparent conductive electrode materials are an important part of electronic components. With the further development of scientific research, materials used in wearable electronic devices, flexible solar cells, flexible supercapacitors, flexible liquid crystal displays, stretchable organic light-emitting diodes (LEDs) and touch sensors need to be flexible, good electrical conductivity, High infrared transmittance, electrical sensitivity to physical parameters, and low cost, while indium tin oxide (ITO) in the prior art does not have the above characteristics. [0003] In addition, the rare metal indium used to prepare ITO has a low content in the earth's crust, the growing demand, and strict vacuum-based processing methods such as sputtering and chemical vapor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F9/24B22F1/02H01B5/14B82Y40/00
CPCB22F9/24H01B5/14B82Y40/00B22F1/0547B22F1/17
Inventor 杨宏伟李耀
Owner 昆明贵研新材料科技有限公司
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