Honeycomb CuO nano material and preparation thereof

A honeycomb and nanotechnology, applied in the field of nanomaterials, can solve few problems and achieve the effect of novel method, low cost and simple method

Inactive Publication Date: 2009-07-22
EAST CHINA NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

So recently, various one-dimensional CuO nanostructures, such as nanowires, nanoflowers, nanorods, etc., have been prepared by various methods (solid phase method, hydrothermal synthesis, etc.), and the field emission of these nanostructures However, so far, all one-dimensional nanostructures are basically prepared by thermal evaporation or hydrothermal synthesis, and few CuO nanostructures are prepared by electroplating.

Method used

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  • Honeycomb CuO nano material and preparation thereof
  • Honeycomb CuO nano material and preparation thereof
  • Honeycomb CuO nano material and preparation thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0019] Set the surface area to 1.5cm 2 The copper sheet is polished, soaked in 30% hydrochloric acid for 8 minutes, and then put into acetone for ultrasonication, and the obtained pure copper sheet is used as the anode; the selected surface area is about 1.6cm 2 Graphite (as cathode; 3mol / L KOH as electrolyte; voltage 3V; 3h after electrodeposition; take out the copper sheet, you can see a layer of blue Cu(OH) on the surface of the copper sheet 2 Precursor; in N 2 Under protection, the obtained Cu(OH) 2 The precursor was heated at 150°C for 2.5h, and then taken out, a layer of black honeycomb nano-CuO was formed on the surface of the copper sheet.

Embodiment 2

[0021] Place a copper sheet (approximately 1.5 cm in surface area) 2 ) polished, soaked in 30% hydrochloric acid for 10 minutes, and then placed in acetone for ultrasonication, the obtained pure copper sheet was used as an anode; graphite (surface area about 1.6cm 2 ) as the cathode; 3mol / L KOH as the electrolyte; the voltage is 5V; after 5 hours of electrodeposition; take out the copper sheet, and you can see that a layer of blue Cu(OH) is formed on the surface of the copper sheet 2 Precursor; in N 2 Under protection, the obtained Cu(OH) 2 The precursor was heated at 160°C for 3.5h, and then taken out, a layer of black honeycomb nano-CuO was formed on the surface of the copper sheet.

Embodiment 3

[0023] Place a copper sheet (approximately 1.5 cm in surface area) 2 ) polished, soaked in 30% hydrochloric acid for 9 minutes, and then placed in acetone for ultrasonication, and the obtained pure copper sheet was used as an anode; graphite (surface area about 1.6cm 2 ) as the cathode; 3mol / L KOH as the electrolyte; the voltage is 4V; after 4 hours of electrodeposition; take out the copper sheet, and you can see that a layer of blue Cu(OH) is formed on the surface of the copper sheet 2 Precursor; in N 2 Under protection, the obtained Cu(OH) 2 The precursor was heated at 155°C for 3 hours, and then taken out, a layer of black honeycomb nano-CuO was formed on the surface of the copper sheet.

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Abstract

The invention discloses a preparation method of honeycombed CuO nano structure, which includes concrete steps as follows: copper sheet is burnished and soaked in 30% hydrochloric acid for 8 minutes to 10 minutes, and then put into acetone for ultrasonic processing to obtain pure copper sheet which is taken as a positive electrode; graphite is selected as a negative electrode; 3mol/L KOH is adopted as an electrolytic solution; voltage ranges from 3V to 5V; after electrolytic deposition is carried out for 3h to 5h, the copper sheet is taken out and a layer of blue Cu(OH)2 precursor is generated on the surface of the copper sheet; and under the protection of N2, the obtained Cu(OH)2 precursor is heated at 150 DEG C to 160 DEG C for 2.5h to 3.5h and then taken out, and a layer of black honeycombed nano CuO is generated on the surface of the copper sheet. Compared with the nano structure synthesized in the past, the preparation method is prominently characterized by: (1) novel method; (2) novel appearance; (3) simple equipment; (4) simple operation; (5) no requirement of catalysts, resource conservation; and (6) low cost.

Description

technical field [0001] The invention relates to a nano material, specifically a honeycomb CuO nano material, and a preparation method of the nano material; it belongs to the technical field of semiconductor materials, optoelectronic materials and devices. Background technique [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 experience. 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 e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G3/02C25D11/34
Inventor 徐建文郁可尚德建吴晋许玉娥李立君朱自强
Owner EAST CHINA NORMAL UNIV
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