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Novel and large-scale preparation method of nano-cuprous oxide

A nano-cuprous oxide, large-scale preparation technology, applied in copper oxide/copper hydroxide, nanotechnology, nanotechnology and other directions, can solve the problems of low purity of nano-cuprous oxide particles, difficulty in large-scale production, and many steps. , to achieve the effects of good secondary dispersibility, short reaction time and low preparation cost

Inactive Publication Date: 2011-08-31
SHANGHAI LANGYI FUNCTIONAL MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This invention system contains many formulations, so the purity of the final nano-cuprous oxide particles is not high. At the same time, steps such as adjusting the pH value are required. The procedure is complicated and the steps are numerous, so it is difficult to produce on a large scale

Method used

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  • Novel and large-scale preparation method of nano-cuprous oxide
  • Novel and large-scale preparation method of nano-cuprous oxide
  • Novel and large-scale preparation method of nano-cuprous oxide

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0017] Example 1: Dissolve 0.01mol of copper sulfate in 100ml of water, add 5ml of oleic acid and 0.5g of polyethylene glycol 2000, stir to dissolve, and heat up to 30°C. Slowly add 10ml of hydrazine hydrate solution, stir the reaction, the color of the solution gradually becomes darker, indicating the generation of nano-cuprous oxide, and stop heating after 20 minutes. The cooled solution is left to stand and then centrifuged, and repeatedly washed with deionized water, ethanol and acetone for more than three times to obtain nano-cuprous oxide with high purity, good stability and good oil solubility.

example 2

[0018] Example 2: Dissolve 0.01 mol of copper acetate in 100 ml of diethylene glycol, add 0.5 g of cetyltrimethylammonium bromide and 0.8 g of polyvinyl alcohol 3 g, and raise the temperature to 70 ° C. Dissolve 0.02mol sodium hypophosphite in 50ml diethylene glycol, slowly add to the above solution and stir vigorously, the color of the solution becomes darker, indicating the generation of nano-cuprous oxide, and after 20 minutes, stop ammonium chloride and 0.8g poly Vinyl alcohol 3g, heated up to 70°C. Dissolve 0.02 mol of sodium hypophosphite in 50 ml of diethylene glycol, slowly add to the above solution and stir vigorously, the color of the solution becomes darker, indicating the generation of nano-cuprous oxide, and stop heating after 20 minutes. Subsequent operations are the same as in Example 1.

example 3

[0019] Example 3: Dissolve 0.01 mol of copper sulfate in 100 ml of ethanol, add 0.6 g of dodecyltrimethylammonium chloride and 2 g of hexadecane, and raise the temperature to 60°C. Dissolve 0.01mol sodium borohydride in 50ml ethylene glycol, slowly add to the above solution and stir vigorously, the solution gradually becomes darker, indicating the generation of nano-cuprous oxide, and the reaction stops after 20 minutes. Subsequent operations are the same as in Example 1.

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Abstract

The invention discloses a novel and large-scale preparation method of nano-cuprous oxide. The method comprises the steps of: fully dissolving copper salt and an organic protective agent in a dissolvent; gradually warming to 20-70 DEG C; adding a reducing agent into a reaction system after the temperature is stabilized; reacting for 20-30min by continuously stirring; gradually cooling; standing the cooled solution and centrifuging; and repeatedly washing by alcohol, deionized water and acetone sequentially in sequence to obtain stable cuprous oxide. The method is simple in technology, simple in operation, moderate in reaction, short in reaction time, and high in efficiency, thereby being suitable for large-scale production; the product is good in performance, the grain size of the nano-cuprous oxide is less than 20nm, and the product has good secondary dispersibility in various oil agents; the method is low in preparation cost, low in energy consumption, and free of the generation of harmful wastes, and meets the modern production requirement of 'green protection, environment protection and energy saving'.

Description

Technical field [0001] The invention relates to a method for preparing nano cuprous oxide, in particular to a method for preparing oil-soluble nano cuprous oxide which has good dispersibility in oily solvent and is suitable for large-scale production. Background technique [0002] Since the 1980s, nanotechnology has shown wide application potential in materials, information, energy, environment, life, military, manufacturing, etc., bringing huge opportunities for the development of high-tech and the improvement of human living standards in the 21st century. In the 19th century, countries around the world seized the high-tech and key strategic areas of the commanding heights of the global economy. Cuprous oxide (Cu 2 O) is a p-type semiconductor material with a wide range of uses. In addition to being used as a catalyst in organic synthesis, it can also be used as a ship's anti-corrosion coating and insecticide, and it is also used in ceramics and electronic devices. Due t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G3/02B82B3/00
Inventor 唐晓峰赵宏鑫杨振国
Owner SHANGHAI LANGYI FUNCTIONAL MATERIALS
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