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CuO nanometer sheet and preparation method thereof

A technology of nanosheet and seed layer, which is applied in the direction of nanotechnology, nanotechnology, nanotechnology for materials and surface science, etc., can solve the problems of long preparation cycle and unfavorable large-scale production, and achieve short preparation cycle and good conditions Gentle, high product quality results

Inactive Publication Date: 2014-03-26
SHANGHAI INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, the above-mentioned preparation processes are all carried out under high temperature and high pressure conditions, and the preparation cycle is long, which is not conducive to large-scale production.

Method used

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  • CuO nanometer sheet and preparation method thereof
  • CuO nanometer sheet and preparation method thereof
  • CuO nanometer sheet and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A preparation method of CuO nanosheets, specifically comprising the steps of:

[0032] (1) Ultrasonic clean the 1cm×3cm glass substrate in deionized water, ethanol, acetone, and chloroform solvents for 15 minutes respectively to obtain the cleaned glass substrate, and then immerse the cleaned glass substrate in 50mL of In the copper acetate ethanol solution with a concentration of 10mmol / L, take it out after 10s, and let it dry naturally in the air;

[0033] (2) Place the dried glass substrate above at 100°C for 1 min and anneal at 250°C for 2.5 h to obtain a glass substrate with a CuO seed layer;

[0034] (3) Immerse the glass substrate carrying the CuO seed layer in an aqueous solution containing 12.5mmol / L copper salt and 12.5mmol / L amine salt, control the temperature at 65°C, keep it for 8h, take it out, and use deionized water Rinse three times, and then dry at 60°C to obtain a uniform layer of black CuO on the surface of the glass substrate, which is CuO nanoshee...

Embodiment 2

[0039] A preparation method of CuO nanosheets, specifically comprising the steps of:

[0040] (1) Ultrasonic clean the 1cm×3cm glass substrate in deionized water, ethanol, acetone, and chloroform for 15 minutes respectively to obtain a cleaned glass substrate, and then immerse the cleaned glass substrate in 50mL at room temperature In the copper acetate ethanol solution with a concentration of 10mmol / L, take it out after 10s, and let it dry naturally in the air;

[0041] (2) Place the dried glass substrate above at 100°C for 1 min and anneal at 250°C for 2.5 h to obtain a glass substrate with a CuO seed layer;

[0042] (3) Immerse the glass substrate carrying the CuO seed layer into a mixed aqueous solution containing 12.5mmol / L copper salt and 12.5mmol / L amine salt, control the temperature at 65°C, keep it for 6h, take it out, and use deionized water Rinse three times, and then dry at 60°C to obtain a uniform layer of black CuO on the surface of the glass substrate, which is...

Embodiment 3

[0047] A preparation method of CuO nanosheets, specifically comprising the steps of:

[0048] (1) Ultrasonic clean the 1cm×3cm glass substrate in deionized water, ethanol, acetone, and chloroform for 15 minutes respectively to obtain a cleaned glass substrate, and then immerse the cleaned glass substrate in 50mL at room temperature In the copper acetate ethanol solution with a concentration of 10mmol / L, take it out after 10s, and let it dry naturally in the air;

[0049] (2) Place the dried glass substrate above at 100°C for 1 min and anneal at 250°C for 2.5 h to obtain a glass substrate with a CuO seed layer;

[0050] (3) Immerse the glass substrate carrying the CuO seed layer into an aqueous solution containing a mixture of 12.5mmol / L copper salt and 12.5mmol / L amine salt, control the temperature at 65°C, keep it for 6h, take it out, and use deionized water Rinse three times, and then dry at 60°C to obtain a uniform black product on the surface of the glass substrate;

[005...

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Abstract

The invention discloses a CuO nanometer sheet and a preparation method thereof, and the CuO nanometer sheet has the side length of 0.5-10 mu m and the thickness of 50-200 nm. The preparation method comprises: ultrasonically cleaning a glass base plate successively in deionized water, ethanol, acetone and chloroform to obtain a clean glass base plate, then immersing in an ethanol solution of copper acetate at room temperature for 10 s, taking out and naturally drying in air; then annealing at 100 DEG C, then heating to 250 DEG C and annealing for 2.5 h to obtain the glass base plate carrying a CuO crystal seed layer; and finally immersing the glass base plate in an aqueous solution containing a copper salt and an amine salt, controlling the temperature at 65-75 DEG C, keeping for 1-10 h, taking out, cleaning and drying to obtain the glass base plate with a CuO nanometer sheet layer on the surface. The preparation method has the characteristics of being simple to operate, high in product quality, mild in condition, short in preparation period, suitable for large-scale production and the like.

Description

technical field [0001] The invention relates to a CuO nanosheet with a side length of 0.5-10 μm and a thickness of 50-200 nm and a preparation method thereof. The method solves the problem that CuO nanomaterials are difficult to prepare nanosheets, and the method has simple operation, mild conditions, short preparation cycle, is suitable for large-scale production, and has broad application prospects in the fields of energy and sensors. Background technique [0002] CuO is a p-type semiconductor with a bandgap energy of 1.7 eV, antiferromagnetism and high-temperature superconductivity, and is widely used in batteries, gas sensors, magnetic storage media, and solar energy conversion. Among them, nano-CuO can also be used as a catalyst, carrier, and electrode active material. Therefore, the preparation of CuO nanomaterials has aroused widespread interest. Among them, since the structure and morphology of nanomaterials have a great influence on their properties, the research ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G3/02B82Y30/00B82Y40/00
Inventor 周芹张越康诗钊李向清穆劲
Owner SHANGHAI INST OF TECH
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