CuO straw-shaped nano structure and preparation method thereof

A nanostructure and straw technology, which is applied in the direction of nanostructure manufacturing, nanotechnology, nanotechnology, etc., can solve the problem of high cost of plasma, achieve good repeatability, save resources, and reduce requirements

Inactive Publication Date: 2008-09-17
EAST CHINA NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The original CRT (cathode ray tube) and its LCD liquid crystal display have highlighted some of their disadvantages. The cost of plasma is too high. People are more and more interested in field emission displays, and their expectations are getting higher and higher. Presumably in the In the near future, display devices made of field emission materials will be popularized in large numbers

Method used

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  • CuO straw-shaped nano structure and preparation method thereof
  • CuO straw-shaped nano structure and preparation method thereof
  • CuO straw-shaped nano structure and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] 1) Polish the copper sheet, clean it with ultrasonic waves, and then cut it into several small pieces about 1cm×1.5cm;

[0024] 2) Take 10 ml of KOH solution of 10M / L (mole per liter) and put it into a 50 ml beaker;

[0025] 3) Put the copper piece into a small beaker and let it stand for 60 minutes;

[0026] 4) Take 15 milliliters of hydrogen peroxide with a graduated cylinder, and then drop the hydrogen peroxide (concentration 30%) into the beaker with a dropper at a constant speed;

[0027] 5) After the reaction was carried out for 12 hours, the copper sheet whose surface was completely blackened was taken out;

[0028] 6) Clean the surface of the copper sheet with deionized water and alcohol, and dry it in a constant temperature oven at 60°C;

[0029] 7) Take it out from the oven, and you can see clusters of black copper oxide raised on the surface.

Embodiment 2

[0031] 1) Polish the copper sheet, clean it with ultrasonic waves, and then cut it into several small pieces about 1cm×1.5cm;

[0032] 2) Take 12 milliliters of KOH solution of 10M / L (mole per liter) and put it into a 50 milliliter beaker;

[0033] 3) Put the copper piece into a small beaker and let it stand for 65 minutes;

[0034] 4) Take 15 milliliters of hydrogen peroxide with a graduated cylinder, and then drop the hydrogen peroxide (concentration 30%) into the small beaker with a dropper at a constant speed;

[0035] 5) After the reaction was carried out for 12 hours, the copper sheet whose surface was completely blackened was taken out;

[0036] 6) Clean the surface of the copper sheet with deionized water and alcohol, and dry it in a constant temperature oven at 65°C;

[0037] 7) Take it out from the oven, and you can see clusters of black copper oxide raised on the surface.

Embodiment 3

[0039] 1) Polish the copper sheet, clean it with ultrasonic waves, and then cut it into several small pieces about 1cm×1.5cm;

[0040] 2) Take 15 ml of KOH solution of 10M / L (mole per liter) and put it into a 50 ml beaker;

[0041] 3) Put the copper piece into a small beaker and let it stand for 70 minutes;

[0042] 4) Take 20 milliliters of hydrogen peroxide with a graduated cylinder, and then drop the hydrogen peroxide (concentration 30%) into the beaker with a dropper at a constant speed;

[0043] 5) After the reaction was carried out for 13 hours, the copper sheet whose surface was completely blackened was taken out;

[0044] 6) Clean the surface of the copper sheet with deionized water and alcohol, and dry it in a constant temperature oven at 70°C;

[0045] 7) Take it out from the oven, and you can see clusters of black copper oxide raised on the surface.

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Abstract

The invention discloses a strawy nanostructure and the preparation method. The strawy nanostructure is directly grown through a plurality of clusters of nano-wires from a base; the strawy nanostructure is thick, and the end is sharp; the length is 30 to 60 Mum; the diameter at the top end is 100 to 300nm. Compared with the synthesized nanostructure in the prior art, the preparation method has the advantages of low growth temperature (the preparation is performed only at ambient temperature and the maximum temperature in the small beaker is only 50 DEG C), reduced equipment requirements, low required pressure (only atmospheric pressure), easy operation, simple method, no need of catalyst, resource saving, low cost, good repeatability, and large growth area.

Description

technical field [0001] The present invention relates to a nanostructure, in particular to a nanostructured CuO straw-like structure and a hydrothermal method, under normal atmospheric pressure and without a catalyst, a large area of ​​this structure can be obtained on a copper sheet substrate. The invention discloses a preparation method of the structure, which belongs to the technical fields of semiconductor materials, optoelectronic materials and devices. technical background [0002] CuO is a wide bandgap semiconductor with large exciton binding energy. It has great application prospects in optoelectronic devices, photocatalysis and solar cells. Because of its thermal stability, high mechanical strength and chemical stability Such special properties have aroused people's interest in the field emission characteristics of its nanostructures. Especially in recent years, the continuous improvement of video technology has led to the continuous improvement of people's visual e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G3/02B82B3/00
Inventor 尚德建郁可徐建文吴晋许玉娥朱自强
Owner EAST CHINA NORMAL UNIV
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