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Room temperature solid phase preparation method for cuprous oxide/copper oxide nanocomposite

A technology of nanocomposites and cuprous oxide, applied in the direction of copper oxide/copper hydroxide, nanotechnology, nanotechnology, etc., can solve the problems of complex operation, cumbersome steps, large solvent consumption, etc., and achieve high product yield and high The effect of catalytic activity and broad application prospects

Inactive Publication Date: 2017-11-17
XINJIANG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the Cu-containing 2 O nanocomposites can be prepared by these methods, but in the synthesis process, a large amount of solvent needs to be consumed, and the steps are cumbersome and complicated.

Method used

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  • Room temperature solid phase preparation method for cuprous oxide/copper oxide nanocomposite
  • Room temperature solid phase preparation method for cuprous oxide/copper oxide nanocomposite
  • Room temperature solid phase preparation method for cuprous oxide/copper oxide nanocomposite

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] At room temperature, mix 0.5g cuprous chloride and 0.4g sodium hydroxide, grind them for 30 minutes to make them undergo solid-phase chemical reaction, wash the products with ammonia water, water and ethanol respectively, and dry them with air at 60 degrees for 6 hours Get Cu 2 O / CuO nanocomposites.

[0016] By the powder X-ray diffraction pattern of product ( figure 1 ) It can be seen that the prepared product contains Cu 2 O, CuO; by scanning electron microscope pictures ( figure 2 ) It can be seen that the product is an irregular spherical particle of 20-50nm; Cu 2 O / CuO nanocomposites can completely convert carbon monoxide into carbon dioxide at 160 degrees ( image 3 ).

Embodiment 2

[0018] At room temperature, mix 0.5g of cuprous chloride, 0.4g of sodium hydroxide, and 0.3g of urea, and grind them for 50 minutes to cause a solid-phase chemical reaction. The products are washed with ammonia water, water, and ethanol, and blown at 80 degrees Cu was obtained after drying for 6 hours 2 O / CuO nanocomposites.

Embodiment 3

[0020] At room temperature, mix 0.5g of cuprous chloride and 0.28g of potassium hydroxide, grind them for 30 minutes to cause a solid-phase chemical reaction, wash the products with ammonia water, water, and ethanol, and dry them with air at 60 degrees for 6 hours get nano Cu 2 O.

[0021] By the powder X-ray diffraction pattern of product ( Figure 4 ) It can be seen that the prepared product is Cu2O; from the scanning electron microscope picture ( Figure 5 ) It can be seen that the product is an irregular spherical particle of about 50nm; nano-Cu 2 O can completely convert carbon monoxide into carbon dioxide at 140 degrees ( Image 6 ).

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Abstract

The invention relates to a method for preparation of a nanoscale cuprous oxide / copper oxide compound by room temperature solid phase reaction. A cuprous salt and alkali are mixed in different ratios for room temperature solid phase chemical reaction to obtain a nano cuprous oxide / copper oxide compound and pure phase cuprous oxide. The obtained products are 20-50nm granular substances, and can show good catalytic activity when used for catalyzing carbon monoxide oxidation reaction. The method has the advantages of simple operation, mild conditions, environmental protection and no pollution, and cheap raw materials, thus being easy for mass production. The obtained cuprous oxide based nanomaterial is expected to show important application in catalysis, energy storage, environmental detection and repair and other fields.

Description

technical field [0001] The invention relates to the preparation of nano-scale cuprous oxide / copper oxide composite, belonging to the field of composite material synthesis and heterogeneous catalysis. Background technique [0002] Cuprous oxide (Cu 2 O) as a p-type semiconductor material with a band gap of only 2.0 eV has shown important applications in many fields. Cu with nanoscale 2 O has special optical, electrical, and catalytic properties, and has potential applications in solar cells, sensors, and pollutant removal. Especially the Cu 2 O complexes with other oxides to produce nanocomposites that can exhibit structure-dependent performance characteristics. At present, the methods used to prepare cuprous oxide-based nanomaterials mainly include electrochemical methods, polyol methods, hydrothermal methods, and precipitation methods. Although the Cu-containing 2 O nanocomposites can be prepared by these methods, but in the synthesis process, a large amount of solven...

Claims

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Application Information

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IPC IPC(8): C01G3/02B82Y40/00B82Y30/00B01J23/72
CPCC01G3/02B01J23/72B82Y30/00B82Y40/00C01P2002/72C01P2004/03C01P2004/82
Inventor 李怡招谢月洪刘保林曹亚丽贾殿赠
Owner XINJIANG UNIVERSITY
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