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Method for preparing metallic copper nano particle

A nanoparticle and metallic copper technology, applied in the field of preparing metallic copper nanoparticles, can solve the problems of large consumption, high price, and high production cost of metallic copper nanoparticles

Inactive Publication Date: 2009-01-07
ANHUI UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the liquid phase reduction method mainly uses NaBH4 or N2H4 as the reducing agent, the former is more expensive, and the latter is more expensive. These have become one of the reasons for the high production cost of metallic copper nanoparticles

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0009] Weigh CuSO 4 ·5H 2 O 50g and sodium lauryl sulfate 5g, add water 480ml and stir to dissolve, add NaOH solid 33.6g and stir thoroughly for 10 minutes, then add sodium dithionite solid 35g, heat in a water bath and keep stirring at 40-50°C for 30 minutes. The reactant was filtered, washed and filtered three times with distilled water, washed and filtered twice with 1:1 absolute ethanol and acetone solution, and vacuum-dried at 80° C. to obtain metallic copper nanoparticles. The tested product is copper pure phase with a particle size of 30nm. .

example 2

[0011] Weigh CuCl 2 2H 2 Add 100g of O and 6g of sodium lauryl sulfate, add 450ml of water and stir to dissolve, add 95g of solid NaOH and stir thoroughly for 10 minutes, then add 95g of solid sodium dithionite, heat in a water bath and keep stirring at 60-70°C for 20 minutes. The reactant was filtered, washed and filtered three times with distilled water, washed and filtered twice with 1:1 absolute ethanol and acetone solution, and vacuum-dried at 80° C. to obtain metallic copper nanoparticles. The tested product is copper pure phase with a particle size of 50nm. .

example 3

[0013] Weigh Cu(NO 3 ) 2 ·3H 2 O 200g and sodium lauryl sulfate 6g, add 550ml of water and stir to dissolve, add 136g of NaOH solid and stir thoroughly for 10 minutes, then add 128g of sodium dithionite solid, heat in a water bath and keep stirring at 80-90°C for 10 minutes. The reactant was filtered, washed and filtered three times with distilled water, washed and filtered twice with 1:1 absolute ethanol and acetone solution, and vacuum-dried at 80° C. to obtain metallic copper nanoparticles. The tested product is copper pure phase with a particle size of 90nm.

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Abstract

The invention relates to a method for preparing metallic copper nanoparticles, and belongs to the technical field of preparing nanomaterial by liquid-phase chemical reduction. The method adopts sodium hydrosulfite as a reducer to reduce cupric hydroxide under alkaline conditions, and adopts sodium dodecyl sulfate as a dispersant to generate copper nanoparticles with the grain diameter of 30 to 90nm. The method has the characteristics of simple technological process, low production cost and suitability for industrialized production.

Description

Technical field: [0001] The invention relates to a method for preparing metallic copper nanoparticles by a liquid phase reduction method, which belongs to the field of nanotechnology. Background technique: [0002] Due to its special physical and chemical properties, nano-copper particles have attracted more and more attention, and are widely used in catalysis, optoelectronics, information storage, magnetic fluid and lubrication and other fields. In particular, nano-copper particles are an excellent lubricating oil additive. When working, nano-copper particles combine with solid surfaces to form an ultra-smooth protective film, and at the same time fill scratches, greatly reduce friction and wear, and greatly improve lubrication. The lubricating ability and effect of oil. [0003] There are many methods for the preparation of metallic copper nanoparticles that have been reported, especially the preparation of metallic copper nanoparticles by the liquid phase reduction metho...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F9/24
Inventor 朱伟长俞海云郑翠红
Owner ANHUI UNIVERSITY OF TECHNOLOGY
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