Porous copper oxide microsphere/multilayer graphene composite material, and preparation method thereof

A multi-layer graphene and composite material technology, applied in the field of materials, can solve problems such as low electrical conductivity and limit the use of electrode materials, and achieve the effects of simple preparation method, short preparation time, and favorable industrial preparation.

Active Publication Date: 2018-07-31
嘉善县国创新能源研究院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, since copper oxide is a semiconductor material, its conductivity is not high, which limits its use as an electrode material.

Method used

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  • Porous copper oxide microsphere/multilayer graphene composite material, and preparation method thereof
  • Porous copper oxide microsphere/multilayer graphene composite material, and preparation method thereof
  • Porous copper oxide microsphere/multilayer graphene composite material, and preparation method thereof

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preparation example Construction

[0028] see figure 1 , which is a flow chart of the steps of the preparation method of the porous copper oxide microsphere / multilayer graphene composite material according to the embodiment of the present invention, which includes the following steps:

[0029] S10, measure DMF (dimethylformamide) and distilled water with a volume ratio of 8:2, mix them as a mixed solvent, and the volume of the two and the volume of the mixed solvent are used for calculation;

[0030] S20, adding expanded graphite and ultrasonically vibrating for 2 to 7 hours to obtain a mixed solvent of multilayer graphene;

[0031] Wherein the expanded graphite is 1.3mg / mL-2.5mg / mL relative to the mixed solvent, the oxygen content on the surface of the multilayer graphene is less than 3%, and the number of layers is less than 100.

[0032] S30, adding copper acetate monohydrate to the multilayer graphene mixed solvent, stirring for 3 to 6 minutes, pouring the solution into a hydrothermal reaction kettle, keep...

Embodiment 1

[0038] Mix 8ml of DMF and 2ml of distilled water as a mixed solvent, add 13mg of expanded graphite, and ultrasonically vibrate for 2 hours to obtain the multilayer graphene required by the present invention. Add 100mg Cu(CH 3 COO) 2 ·H 2 O was stirred for 5 minutes; the solution was poured into the hydrothermal reactor, so that the filling degree of the solution in the hydrothermal reactor was 30%. After being kept at 100°C for 2 hours, it was cooled to room temperature; the reactant was taken out and washed with alcohol and water for 3 times, and finally dried at 60°C for 24 hours in a drying oven to obtain a nano-copper oxide / multilayer graphene composite material. see figure 2 , which is the scanning electron microscope image of the nano-copper oxide / multilayer graphene composite material. It can be seen from the figure that the copper oxide particles obtained by the reaction are evenly distributed on the surface of the graphene, with a size of about 1 μm, an irregular ...

Embodiment 2

[0040] Mix 8ml of DMF and 2ml of distilled water as a mixed solvent, add 15mg of expanded graphite, and ultrasonically vibrate for 4 hours to obtain the required multilayer graphene of the present invention. Add 200mg Cu(CH 3COO) 2 ·H 2 O was stirred for 3 minutes; the solution was poured into the hydrothermal reactor, so that the filling degree of the solution in the hydrothermal reactor was 30%. After being kept at 100°C for 2 hours, it was cooled to room temperature; the reactant was taken out and washed with alcohol and water for 3 times, and finally dried at 60°C for 24 hours in a drying oven to obtain a nano-copper oxide / multilayer graphene composite material.

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Abstract

The invention discloses a preparation method of a porous copper oxide microsphere / multilayer graphene composite material. The preparation method comprises following steps: DMF and distilled water at avolume ratio of 8:2 are taken, and are mixed so as to obtain a mixed solvent; expandable graphite is added, ultrasonic vibration is carried out for 2 to 7h so as to obtain a multilayer graphene solution; copper acetate monohydrate is added into the multilayer graphene solution, stirring is carried out for 3 to 6h, an obtained mixed solution is introduced into a hydro-thermal reaction vessel, is subjected to thermal insulation treatment at 100 to 130 DEG C for 2h, and is cooled to room temperature; an obtained reaction product is subjected to centrifugal cleaning with alcohol for three times,and centrifugal cleaning with water for three times so as to obtain the dried porous copper oxide microsphere / multilayer graphene composite material. According to the preparation method, organic molecules are adopted for complexation of metal ions, so that porous copper oxide microspheres are prepared on the surface of multilayer graphene containing no oxygen functional groups, the obtained porouscopper oxide microsphere / multilayer graphene composite material possesses a special morphology.

Description

technical field [0001] The invention belongs to the technical field of materials, and in particular relates to a porous copper oxide microsphere / multilayer graphene composite material and a preparation method thereof. Function and other fields have potential use value. Background technique [0002] Due to its small size effect, macroscopic quantum tunneling effect, surface effect, and volume effect, nano-copper oxide particles exhibit unique properties, such as light absorption, thermal resistance, magnetism, melting point, and chemical activity. Physicochemical properties: For example, it exhibits extremely high catalytic activity as a photocatalytic material, can be used as a photosensitive material in sensors, and can also be used in thermally conductive materials and superconducting materials. Since the size and shape have a great influence on the performance of nano-copper oxide, only by effectively controlling the microstructure of nano-copper oxide can it be possible...

Claims

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Application Information

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IPC IPC(8): H01M4/36H01M4/48H01M4/62H01M10/0525H01G11/30H01G11/36H01G11/46B01J23/72
CPCH01M4/362H01M4/483H01M4/625H01M10/0525H01G11/30H01G11/36H01G11/46B01J23/72B01J35/399B01J35/393B01J35/23Y02E60/10
Inventor 徐军明韩震胡晓萍宋开新武军高慧芳吴凡姚亚廖堃
Owner 嘉善县国创新能源研究院
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