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A Synthetic Method of Copper Nanowires with Different Aspect Ratio

A copper nanowire and synthesis method technology, applied in the direction of nanotechnology and the like, can solve the problems of low product yield, high reaction temperature, complex process, etc., and achieve the effects of good dispersibility, low cost and wide application prospect.

Active Publication Date: 2017-04-19
CHONGQING UNIV OF ARTS & SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0011] The purpose of the present invention is to provide a method for synthesizing copper nanowires with different aspect ratios, which overcomes the disadvantages of complex processes, high reaction temperature, low product yield and low purity in current conventional synthesis methods, and can produce Copper nanowires with good controllability, large aspect ratio, good dispersion, and no particles at the terminal

Method used

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  • A Synthetic Method of Copper Nanowires with Different Aspect Ratio
  • A Synthetic Method of Copper Nanowires with Different Aspect Ratio
  • A Synthetic Method of Copper Nanowires with Different Aspect Ratio

Examples

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Effect test

Embodiment 1

[0047] A method for synthesizing copper nanowires with different aspect ratios is carried out according to the following steps:

[0048] (1) Weigh 0.02 mol of copper chloride and 0.02 mol of glucose, and add 1000 ml of deionized water to dissolve and stir evenly at room temperature to obtain a blue solution A;

[0049] (2) Measure 40ml oleylamine, 40μl oleic acid, and 70ml absolute ethanol, stir them evenly at room temperature to prepare mixture B;

[0050] (3) Configure 20ml of PVP (Mw=360000)-ethanol solution C with a mass fraction of 3%;

[0051] (4) Mix A, B and C, dilute with deionized water, and heat and magnetically stir at 80°C for 5 hours;

[0052] (5) Transfer the solution obtained in step (4) to the reaction kettle and react at 120°C for 6 hours;

[0053] (6) Cool the solution obtained after the reaction in step (5), and then use a mixture of hexane and isopropanol with a volume ratio of 2:1, centrifuge at 8000rpm / min and wash 4 times with isopropanol Dilute to obtain a bette...

Embodiment 2

[0056] A method of synthesizing copper nanowires with different aspect ratios is carried out according to the following steps:

[0057] (1) Weigh 0.04 mol of copper chloride and 0.04 mol of glucose, add 2000 ml of deionized water to dissolve and stir evenly at room temperature to obtain a blue solution A;

[0058] (2) Measure 80ml of oleylamine, 80μl of oleic acid, and 140ml of absolute ethanol, stir them evenly at room temperature to prepare mixture B;

[0059] (3) Configure 40ml of PVP (Mw=55000)-ethanol solution C with a mass fraction of 3%;

[0060] (4) Mix A, B and C, dilute with deionized water, and heat and magnetically stir for 8h at 50℃;

[0061] (5) Transfer the solution obtained in step (4) to the reaction kettle, and react at 120°C for 12 hours;

[0062] (6) The solution obtained after the reaction in step (5) is naturally cooled, and then the mixture of hexane and isopropanol with a volume ratio of 1:1 is used for centrifugal washing 4 times at 12000 rpm / min, and isopropanol...

Embodiment 3

[0065] A method of synthesizing copper nanowires with different aspect ratios is carried out according to the following steps:

[0066] (1) Weigh 0.02 mol of copper chloride and 0.02 mol of glucose, and add 1000 ml of deionized water to dissolve and stir evenly at room temperature to obtain a blue solution A;

[0067] (2) Measure 40ml of oleylamine, 40μl of oleic acid, and 70ml of absolute ethanol, and stir them evenly at room temperature to prepare mixture B;

[0068] (3) Configure 20ml of PVP (Mw=1300000)-ethanol solution C with a mass fraction of 3%;

[0069] (4) Mix A, B and C, dilute with deionized water, and heat and magnetically stir at 60°C for 7 hours;

[0070] (5) Transfer the solution obtained in step (4) to the reaction kettle, and react at 110°C for 4 hours;

[0071] (6) The solution obtained after the reaction in step (5) is naturally cooled, and then the mixture of hexane and isopropanol with a volume ratio of 0.5:1 is used for centrifugal washing 4 times at 12000rpm / min, ...

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Abstract

The invention relates to a synthesis method for a copper nanowire with different length-diameter ratios. The method includes the following steps that 1, a mixed water solution A of bivalent copper salt and glucose is prepared; 2, an absolute ethyl alcohol solution B of oleylamine and oleic acid is prepared; 3, an ethanol solution C of polyvinylpyrrolidone is prepared; 4, the solution A, the solution B and the solution C are mixed, diluted with water and then stirred for 2 h-12 h at the temperature of 30 DEG C-80 DEG C; and 5, a solution obtained in the step 4 is reacted for 4 h-24 h at the temperature of 100 DEG C-130 DEG C. The method overcomes the defects of high process complexity, high reaction temperature, low product yield, low product purity and the like of a present conventional synthesis method. The copper nanowire which is good in controllability and dispersity, large in length-diameter ratio and free of tail end particles can be obtained.

Description

Technical field [0001] The invention relates to a one-dimensional metal nano material, in particular to a method for synthesizing copper nanowires with different aspect ratios. Background technique [0002] Copper nanowires have broad application prospects in touch screens, solar cells, wearable devices, organic light-emitting diodes and other fields due to their high conductivity, high transmittance and excellent flexibility. They are considered to be expected to replace indium tin oxide (ITO) A new generation of transparent conductive materials. The synthesis of high-quality copper nanowires is a prerequisite for the preparation of transparent conductive materials with excellent performance. [0003] At present, the main methods for synthesizing copper nanowires are: [0004] 1. Including template method, electrospinning method, vapor deposition method, solid phase reduction method and other "hard" methods. Among them, template method uses the corresponding template as a mold, an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22F9/24B82Y40/00
Inventor 阮海波王然龙柳红东
Owner CHONGQING UNIV OF ARTS & SCI
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