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Nano-copper and preparation method thereof

A technology of nano copper and copper chloride dihydrate, applied in nanotechnology, nanotechnology, nanotechnology for materials and surface science, etc., can solve the problems of easy agglomeration of nano copper particles, long reaction time and high production cost, To achieve the effect of favorable cleaning, good dispersibility and less agglomeration

Active Publication Date: 2019-06-28
SHAANXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the nano-copper particles prepared by the existing polyol method are easy to agglomerate, the reaction time is long, the energy consumption is high, and the production cost is high.

Method used

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  • Nano-copper and preparation method thereof

Examples

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Effect test

Embodiment 1

[0057] (1) Configure five solutions or reagents

[0058] a. Mix glycerol and deionized water in a volume ratio of 3:2 to form a reaction solution A;

[0059] b. Dissolve copper chloride dihydrate in solution A to form CuCl 2 Concentration is the reaction solution B of 0.02mol / L;

[0060] c. polyvinylpyrrolidone is dissolved in solution A to form a reaction solution C whose PVP concentration is 0.06mol / L;

[0061] d. Ascorbic acid is dissolved in solution A to form a reaction solution D whose concentration of ascorbic acid is 0.04mol / L;

[0062] e. Sodium hydroxide is dissolved in deionized water to form a sodium hydroxide reaction solution E with a concentration of 1mol / L;

[0063] (2) Take 30 mL of reaction solution C, add it dropwise to 30 mL of reaction solution D, and magnetically stir at 80° C. for 15 min to form mixed solution F. Take 20 mL of reaction solution B, add it dropwise to mixed solution F, and magnetically stir at 80°C for 15 min to form mixed solution G. ...

Embodiment 2

[0066] (1) Configure five solutions or reagents

[0067] a. Mix glycerol and deionized water in a volume ratio of 3:2 to form a reaction solution A;

[0068] b. Dissolve copper chloride dihydrate in solution A to form CuCl 2 Concentration is the reaction solution B of 0.02mol / L;

[0069] c. polyvinylpyrrolidone is dissolved in solution A to form a reaction solution C whose PVP concentration is 0.06mol / L;

[0070] d. Ascorbic acid is dissolved in solution A to form a reaction solution D whose concentration of ascorbic acid is 0.04mol / L;

[0071] e. Sodium hydroxide is dissolved in deionized water to form a sodium hydroxide reaction solution E with a concentration of 1mol / L;

[0072] (2) Take 30 mL of reaction solution C, add it dropwise to 30 mL of reaction solution D, and magnetically stir at 80° C. for 15 min to form mixed solution F. Take 20 mL of reaction solution B, add it dropwise to mixed solution F, and magnetically stir at 80°C for 15 min to form mixed solution G. ...

Embodiment 3

[0075] (1) Configure five solutions or reagents

[0076] a. Mix glycerol and deionized water in a volume ratio of 3:2 to form a reaction solution A;

[0077] b. Dissolve copper chloride dihydrate in solution A to form CuCl 2 Concentration is the reaction solution B of 0.02mol / L;

[0078] c. polyvinylpyrrolidone is dissolved in solution A to form a reaction solution C whose PVP concentration is 0.06mol / L;

[0079] d. Ascorbic acid is dissolved in solution A to form a reaction solution D whose concentration of ascorbic acid is 0.04mol / L;

[0080] e. Sodium hydroxide is dissolved in deionized water to form a sodium hydroxide reaction solution E with a concentration of 1mol / L;

[0081] (2) Take 30 mL of reaction solution C, add it dropwise to 30 mL of reaction solution D, and magnetically stir at 80° C. for 15 min to form mixed solution F. Take 20 mL of reaction solution B, add it dropwise to mixed solution F, and magnetically stir at 80°C for 15 min to form mixed solution G. ...

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Abstract

The invention discloses nano-copper and a preparation method thereof. The preparation process adopts copper chloride dihydrate as the precursor of copper, green ascorbic acids as a reducing agent andpolyvinyl pyrrolidone as a protective agent, a mixed system of glycerol and deionized water serves as solvents in the whole reaction process, and nano-copper particles can be prepared simply and efficiently. Compared with the preparation of nano-copper by a polyol method, because the mixed solvent of the glycerol and the deionized water plays a role in shortening the reaction time, nano-copper with smaller particle sizes can be prepared in a shorter time. The production cost is reduced, the viscosity of a reaction system is reduced, and cleaning of by-products is facilitated. According to thepreparation method, raw materials are easily obtained, the process is simple, the energy consumption is low, agglomeration is less, and the preparation method is easy to implement. The nano-copper particles prepared by the method are small, dispersed well and agglomerated less.

Description

【Technical field】 [0001] The invention belongs to the technical field of nanomaterial production, and in particular relates to a nanometer copper and a preparation method thereof. 【Background technique】 [0002] ITO is an important material for the manufacture of flexible films, but its raw material indium is scarce, expensive, and the film has poor mechanical stability, which cannot meet the higher requirements of optoelectronic devices in different fields for conductive films. In recent years, researchers have discovered that nano-silver and nano-copper have the potential to replace ITO materials. Compared with nano-silver, nano-copper has a natural price advantage, so it is of great significance to develop nano-copper with good dispersion and uniform size. [0003] At present, there are many methods for preparing nano-copper particles, such as template method, photoreduction method, seed crystal method, microwave method, hydrothermal method, solvothermal method, polyol m...

Claims

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Application Information

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IPC IPC(8): B22F9/24B22F1/00B82Y30/00B82Y40/00
Inventor 迟聪聪夏亮卢金锋张萌王曌任超男袁亮张素风
Owner SHAANXI UNIV OF SCI & TECH
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