Preparation method of ultra-long nano silver wire material

A nano-silver wire, ultra-long technology, applied in nanotechnology, nanotechnology, nanotechnology for materials and surface science, etc., can solve the problems of high viscosity of product solution, harsh reaction conditions, difficult washing, etc., and achieve simple equipment. , low cost, controllable process parameters

Active Publication Date: 2022-02-11
NORTHWEST INSTITUTE FOR NON-FERROUS METAL RESEARCH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The method is developed in an aqueous solution system without the participation of organic solvents, aiming at the problems of high viscosity of the product solution, difficulty in washing, serious pollution, and harsh reaction conditions that exist in the polyol organic system used in the current commercial ultra-long nano-silver wire material preparation process. , no need for inert atmosphere protection, low-cost, green, and easy-to-produce ultra-long nano-silver wire material preparation method

Method used

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  • Preparation method of ultra-long nano silver wire material
  • Preparation method of ultra-long nano silver wire material
  • Preparation method of ultra-long nano silver wire material

Examples

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Effect test

Embodiment 1

[0029] This embodiment includes the following steps:

[0030] Step 1. Add glucose and polyvinylpyrrolidone to deionized water and stir evenly to obtain a clear solution; the molar ratio of glucose, polyvinylpyrrolidone and water is 1:0.1:280, and the molar mass of glucose is 0.01mmol ;

[0031] Step 2, adding copper sulfate solution to the clarified solution obtained in step 1 and stirring evenly to obtain mixed solution A; the molar mass of copper sulfate in the copper sulfate solution is 4.8mmol;

[0032] Step 3, adding sodium chloride solution to the mixed solution A obtained in step 2 and stirring uniformly to obtain mixed solution B; the molar mass of sodium chloride in the sodium chloride solution is 1 mmol;

[0033] Step 4, add silver nitrate solution dropwise to the mixed solution B in step 3 and stir to obtain a reaction solution, then transfer the reaction solution to a hydrothermal reaction kettle, and react at 110° C. for 16 hours to obtain a flocculent product; ...

Embodiment 2

[0037] This embodiment includes the following steps:

[0038] Step 1. Add glucose and polyvinylpyrrolidone to deionized water and stir evenly to obtain a clear solution; the molar ratio of glucose, polyvinylpyrrolidone and water is 1:0.05:400, and the molar mass of glucose is 0.01mmol ;

[0039] Step 2, adding copper sulfate solution to the clarified solution obtained in step 1 and stirring uniformly to obtain mixed solution A; the molar mass of copper sulfate in the copper sulfate solution is 6 mmol;

[0040] Step 3, adding sodium chloride solution to the mixed solution A obtained in step 2 and stirring uniformly to obtain mixed solution B; the molar mass of sodium chloride in the sodium chloride solution is 2mmol;

[0041] Step 4, add silver nitrate solution dropwise to the mixed solution B in step 3 and stir to obtain a reaction solution, then transfer the reaction solution to a hydrothermal reaction kettle, and react at 130° C. for 20 hours to obtain a flocculent product;...

Embodiment 3

[0045] This embodiment includes the following steps:

[0046] Step 1. Add glucose and polyvinylpyrrolidone into deionized water and stir evenly to obtain a clear solution; the molar ratio of glucose, polyvinylpyrrolidone and water is 1:0.08:560, and the molar mass of glucose is 0.01mmol ;

[0047] Step 2, adding copper sulfate solution to the clarified solution obtained in step 1 and stirring uniformly to obtain mixed solution A; the molar mass of copper sulfate in the copper sulfate solution is 5.4 mmol;

[0048] Step 3, adding sodium chloride solution to the mixed solution A obtained in step 2 and stirring uniformly to obtain mixed solution B; the molar mass of sodium chloride in the sodium chloride solution is 1.3mmol;

[0049] Step 4, add silver nitrate solution dropwise to the mixed solution B in step 3 and stir to obtain a reaction solution, then transfer the reaction solution to a hydrothermal reaction kettle, react at 120° C. for 14 hours, and obtain a flocculent prod...

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Abstract

The invention discloses a preparation method of an ultra-long nano silver wire material. The preparation method comprises the following steps: 1, adding glucose and polyvinylpyrrolidone into deionized water; 2, adding a copper sulfate solution into a clarified solution; 3, adding a sodium chloride solution into a mixed solution A; 4, dropwise adding a silver nitrate solution into a mixed solution B, and carrying out a hydrothermal reaction; and 5, settling and washing a flocculent product to obtain the ultra-long nano silver wire material. According to the method, silver nitrate is used as a raw material, the glucose is used as a reducing agent, a hydrothermal reaction is adopted, and the ultra-long silver nanowire material is prepared in an aqueous solution system, so that a common process for preparing the ultra-long silver nanowire material through a polyhydric alcohol organic system at present is broken through, and the technical limitations that the ultra-long silver nanowire material is difficult to wash and harsh in reaction condition are broken through; and the novel method is developed under an aqueous solution system, does not need inert atmosphere protection, is low in cost, is green and environment-friendly, and is easy for industrial production and preparation of the ultra-long nano silver wire material.

Description

technical field [0001] The invention belongs to the technical field of noble metal nano-materials, and in particular relates to a preparation method of an ultra-long nano-silver wire material. Background technique [0002] With the development of nanomaterial preparation technology and the demand for flexible electronic products, research at home and abroad has turned to new nanomaterials instead of metal oxide films, such as: graphene and carbon nanotubes, composite nanomaterials, metal grids and metal nanowires. The high direct-current conductivity of these materials makes the ultra-thin films produced have good conductivity, and can prepare transparent electrodes with excellent performance, overcoming the shortcomings of traditional electrodes such as mechanical brittleness and poor flexibility. Among them, as a one-dimensional metal nanomaterial, silver nanowires have a high aspect ratio, which can form an irregular network structure on the substrate material, so that th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F9/24B22F1/054B82Y30/00B82Y40/00
CPCB22F9/24B82Y30/00B82Y40/00Y02E10/549
Inventor 党蕊郑晶
Owner NORTHWEST INSTITUTE FOR NON-FERROUS METAL RESEARCH
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