Flower-shaped copper oxide nanostructure material and preparation method thereof

A nanostructure, flower-like structure technology, applied in the field of inorganic material preparation, to achieve the effect of simple production process, strong controllability, and increased diffusion speed

Inactive Publication Date: 2016-07-06
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, there is no report on the preparation of copper oxide nanoflowers with a porous sheet-like structure composed of single-layer nanoparticles using an insulating ceramic tube as a substrate without using a surfactant.

Method used

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  • Flower-shaped copper oxide nanostructure material and preparation method thereof
  • Flower-shaped copper oxide nanostructure material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Dissolve 3g of copper acetate in 65ml of deionized water to obtain a dark green clear solution, then add 1g of sodium hydroxide, stir to dissolve and cool to room temperature, then stir and drop in 25ml of ammonia water with a mass concentration of 25% within 5 minutes, and then Stirring was continued at room temperature for 30 minutes to obtain a blue-green solution.

[0020] The above reaction solution was transferred to a polytetrafluoroethylene-lined hydrothermal kettle. Place the ceramic tube vertically at the bottom of the kettle, then seal it, conduct a hydrothermal reaction at 180°C for 24 hours, and cool it to room temperature in air. After the hydrothermal reaction, the ceramic tube was washed three times with deionized water and ethanol, and dried at 80° C. for 1 hour to obtain a black copper oxide nanomaterial precursor attached to the ceramic tube.

[0021] Then bake the ceramic tube with black copper oxide at 600° C. for 2 hours to obtain the copper oxide...

Embodiment 2

[0024] Dissolve 6g of copper acetate in 100ml of deionized water to obtain a dark green clear solution, then add 3g of sodium hydroxide, stir to dissolve and cool to room temperature, then stir and drop 50ml of ammonia water with a mass concentration of 25% in 5 minutes, and then Stirring was continued for 20 minutes at room temperature to give a black solution.

[0025] The above reaction solution was transferred to a polytetrafluoroethylene-lined hydrothermal kettle. Place the ceramic tube vertically at the bottom of the kettle, then seal it, conduct a hydrothermal reaction at 160° C. for 30 hours, and air cool to room temperature. After the hydrothermal reaction, the ceramic tube was washed three times with deionized water and ethanol, and dried at 90° C. for 1 hour to obtain a black copper oxide nanomaterial precursor attached to the ceramic tube.

[0026] Then bake the ceramic tube with black copper oxide at 500° C. for 3 hours to obtain the copper oxide flower-like nano...

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Abstract

The invention belongs to the technical field of inorganic materials and particularly relates to a method for growing a flower-shaped copper oxide (CuO) nanostructure material on a ceramic tube. According to the preparation method, cupric acetate is taken as a copper source, the ceramic tube is taken as a carrier, and direct hydrothermal reaction is carried out at an alkaline condition, so as to grow the flower-shaped copper oxide nanostructure material on the ceramic tube. The flower-shaped copper oxide nanostructure material prepared by virtue of the preparation method comprises single-layer nanosheets formed by the nano-particles with the particle sizes of 50-80, wherein the nano-particles are mutually adhered with obvious gaps to form network-structure sheets, and the flower-shaped copper oxide nanostructure material is high in purity and is single-phase, flower-shaped structures are flat, and the diameter is 6-11 microns. The preparation method has the beneficial effects that no surfactant is used, the production process is simple, and the controllability is strong; and by virtue of the structure, the flower-shaped copper oxide nanostructure material has wide application prospects in the fields of magnetic materials, light absorption, sensors, superconducting materials, catalysts, thermistors, magnetic memories, lithium ion batteries and biological medicine.

Description

technical field [0001] The invention belongs to the technical field of inorganic material preparation, and in particular relates to a method for growing copper oxide (CuO) flower-like nanometer materials on ceramic tubes. Background technique [0002] Copper oxide nanomaterials are p-type semiconductor oxides with narrow bandgap. As an important multifunctional inorganic material, they are used in magnetic materials, light absorption, sensors, superconducting materials, catalysts, thermistors, magnetic storage, lithium Ion batteries and biomedicine and other fields. A large number of literatures have shown that factors such as the shape and size of materials have a great impact on their various properties. At present, researchers have synthesized copper oxide nanomaterials with various shapes by various methods, such as nanowires, nanorods, nanobelts, nanotubes, and microspheres. In particular, the flower-like copper oxide structure contains a large number of nanostructure...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G3/02B82Y30/00B82Y40/00
CPCC01G3/02C01P2002/72C01P2004/03C01P2004/30C01P2004/50C01P2004/61C01P2004/64
Inventor 李志杰王治国王宁宁
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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