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Preparation method for preparing nitrogen-doped graphene/tin oxide nanocomposite material

A technology of nitrogen-doped graphene and nanocomposite materials, applied in the direction of nanotechnology, nanotechnology, nanotechnology for materials and surface science, etc., can solve the problem that there is no way to obtain a large number of composite materials, and it is impossible to obtain no defects in batches Graphene and other issues to achieve the effect of simple process

Pending Publication Date: 2016-11-23
西安亚岱新能源科技有限公司
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Although graphene can improve the electronic properties of the material, since the existing technology cannot obtain graphene without defects in batches, there is no way to obtain ideal composite materials in large quantities, which requires finding new methods to compensate for the defects caused by graphene defects. to the impact

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] 1) At room temperature, under the protection of nitrogen, disperse 10g of graphite oxide in deionized water. After the resulting mixture is dispersed evenly by ultrasonic, add 3g of tin oxide and 20ml of hydrazine hydrate solution and stir evenly to form nitrogen-doped graphene / oxide tin compound liquid;

[0017] 2) The temperature of the above reaction solution was raised to 120°C, and reacted for 10 hours;

[0018] 3) washing the product obtained in step 2) with deionized water and centrifuging to obtain powder;

[0019] 4) vacuum-dry the powder obtained by filtration to obtain the final product nitrogen-doped graphene / tin oxide nanocomposite material, which is recorded as No. 1 composite material.

Embodiment 2

[0021] 1) At room temperature, under the protection of nitrogen, disperse 20g of graphite oxide in deionized water. After the obtained mixed solution is dispersed uniformly by ultrasonic, add 6g of tin oxide and 40ml of hydrazine hydrate solution and stir evenly to form nitrogen-doped graphene / oxide tin compound liquid;

[0022] 2) The above reaction solution was heated to 200°C and reacted for 25 hours;

[0023] 3) washing the product obtained in step 2) with deionized water and centrifuging to obtain powder;

[0024] 4) Vacuum-dry the powder obtained by filtration to obtain the final product nitrogen-doped graphene / tin oxide nanocomposite material, which is recorded as No. 2 composite material.

[0025] Carry out performance comparative test test by nitrogen-doped graphene / tin oxide nano-composite material of the present invention as electrode material, draw following conclusion: every performance of No. 2 composite material is all better than No. 1 composite material, and ...

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Abstract

The invention relates to a preparation method for preparing a nitrogen-doped graphene / tin oxide nanocomposite material. The specific steps are: 1) preparing a nitrogen-doped graphene / tin oxide composite liquid; 2) high-temperature stirring reaction; 3) centrifuging to obtain powder ; 4) drying to obtain the target object. The invention has the advantages of simple operation, low cost, easy industrial production, and can be widely used in solar cells, photodiodes, lithium batteries, thermoelectric devices, memories, sensors and the like.

Description

technical field [0001] The invention belongs to the field of preparation of graphene-based composite materials, in particular to a preparation method for preparing nitrogen-doped graphene / tin oxide nano-composite materials. Background technique [0002] Graphene is a two-dimensional honeycomb structure composed of a single layer of carbon atoms. It has many unique physical properties. The electron movement speed of graphene reaches 1 / 300 of the speed of light, which means it far exceeds the speed of electrons in general conductors. Movement speed, many studies expect to achieve the purpose of improving the electrical properties of materials by combining with graphene. [0003] Although graphene can improve the electronic properties of the material, since the existing technology cannot obtain graphene without defects in batches, there is no way to obtain ideal composite materials in large quantities, which requires finding new methods to compensate for the defects caused by g...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L31/0224B82Y30/00B82Y40/00
Inventor 郑伟娜
Owner 西安亚岱新能源科技有限公司