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Nanometer silver wire as well as preparation method and application thereof

A technology of nano-silver wire and silver nitrate, which is applied in the direction of nanotechnology, nanotechnology, nanotechnology for materials and surface science, etc., can solve the problems of complex operation, high volatility, easy to pollute the environment, etc., and achieve simplified preparation process , Uniform diameter and simple operation process

Active Publication Date: 2020-04-14
宁波鑫智达新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] There are many methods for synthesizing silver nanowires, such as hard template method, seed crystal growth method, etc., but the above synthesis methods have great limitations, such as complicated operation, high cost of raw materials, etc., and it is difficult to adapt to large-scale industrial production
In addition, the traditional method of separating silver nanowires requires the use of a large amount of acetone, but acetone is highly toxic, has a low boiling point, and is highly volatile, which is easy to pollute the environment

Method used

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  • Nanometer silver wire as well as preparation method and application thereof
  • Nanometer silver wire as well as preparation method and application thereof
  • Nanometer silver wire as well as preparation method and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0042] A method for preparing silver nanowires, comprising the following steps performed in sequence:

[0043] Step 1: Add 0.08mmol potassium chloride, 0.06mmol potassium bromide, 0.0018mmol ferric chloride, 0.014mmol aluminum chloride and 28mmol polyvinylpyrrolidone (average molecular weight: 1300000) to 190mL ethylene glycol to obtain mixed solution A;

[0044] Step 2: heating the mixed solution A to the nucleation temperature and keeping it warm for 30 minutes, the nucleation temperature is 140°C;

[0045] Step 3: add the ethylene glycol solution (10mL) of 14mmol silver nitrate in described mixed solution A to obtain mixed solution B;

[0046] In the mixed solution B, the concentration of potassium chloride is 0.4mmol / L, the concentration of potassium bromide is 0.3mmol / L, the concentration of ferric chloride is 0.009mmol / L, and the concentration of aluminum chloride is 0.07mmol / L. The concentration of vinylpyrrolidone was 140mmol / L, and the concentration of silver nitrate...

Embodiment 2

[0056] A method for preparing silver nanowires, comprising the following steps performed in sequence:

[0057] Step 1: Add 0.08mmol potassium chloride, 0.06mmol potassium bromide, 0.0018mmol ferric chloride, 0.014mmol aluminum chloride, 28mmol polyvinylpyrrolidone (average molecular weight: 1300000) to 190mL ethylene glycol to obtain mixed solution A;

[0058] Step 2: heating the mixed solution A to the nucleation temperature and keeping it warm for 30 minutes, the nucleation temperature is 150°C;

[0059] Step 3: add the ethylene glycol solution (10mL) of 14mmol silver nitrate in described mixed solution A to obtain mixed solution B;

[0060] In the mixed solution B, the concentration of potassium chloride is 0.4mmol / L, the concentration of potassium bromide is 0.3mmol / L, the concentration of ferric chloride is 0.009mmol / L, and the concentration of aluminum chloride is 0.07mmol / L. The concentration of vinylpyrrolidone was 140mmol / L, and the concentration of silver nitrate wa...

Embodiment 3

[0066] A method for preparing silver nanowires, comprising the following steps performed in sequence:

[0067] Step 1: Add 0.12mmol potassium chloride, 0.06mmol potassium bromide, 0.0018mmol ferric chloride, 0.004mmol aluminum sulfate, 28mmol polyvinylpyrrolidone (average molecular weight: 1300000) to 190mL ethylene glycol to obtain mixed solution A;

[0068] Step 2: heating the mixed solution A to the nucleation temperature and keeping it warm for 30 minutes, the nucleation temperature is 150°C;

[0069] Step 3: add the ethylene glycol solution (10mL) of 14mmol silver nitrate in described mixed solution A to obtain mixed solution B;

[0070] In the mixed solution B, the concentration of potassium chloride is 0.6mmol / L, the concentration of potassium bromide is 0.3mmol / L, the concentration of ferric chloride is 0.009mmol / L, the concentration of aluminum sulfate is 0.02mmol / L, polyethylene The concentration of pyrrolidone was 140mmol / L, and the concentration of silver nitrate ...

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Abstract

The invention discloses a preparation method of a nanometer silver wire. A one-pot method is adopted, namely, the nucleation process and the growth process of the nanometer silver wire are sequentially carried out in the same reaction container. The theory of "low-temperature nucleation and high-temperature growth" is applied, that is, a nanometer-silver decahedron is formed at low temperature, and the growth of the nanometer silver wire is promoted at high temperature. The nanometer silver wire prepared by the method is uniform in diameter and size and has a large application prospect in thefields of electronic devices and / or photon devices.

Description

technical field [0001] The invention relates to the technical field of nanometer materials, in particular to a nanosilver wire and its preparation method and application. Background technique [0002] Transparent conductive films are important components of many electronic and optoelectronic devices, such as display screens, electronic paper, solar cells, etc. In recent years, with the popularity of touch electronic products and the growing demand for touch screen technology, people have higher and higher requirements for transparent conductive films. Due to the shortage of indium resources, poor flexibility, complex manufacturing process, and high energy consumption, the traditional indium tin oxide (ITO) material can no longer meet the development requirements of the new generation of touch technology. It is particularly necessary to find new alternative materials. As a one-dimensional conductive material, silver nanowire has a high specific surface area and excellent ele...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F9/16B82Y30/00B82Y40/00
CPCB22F9/16B82Y30/00B82Y40/00Y02P70/50
Inventor 曹国俊王瑞琦王成
Owner 宁波鑫智达新材料有限公司
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