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Preparation method of graphene/zinc oxide nanocomposite and purpose thereof

A zinc oxide nanocomposite material technology, which is applied in the field of graphene/zinc oxide nanocomposite material preparation, can solve the problems of multiple reaction steps and complex equipment, and achieve enhanced stability, good chemical properties and improved dispersibility Effect

Inactive Publication Date: 2016-10-26
ANHUI NINGGUO TIANCHENG ELECTRICAL APPLIANCES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this kind of synthetic method has many reaction steps, and the required equipment is complicated.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A kind of preparation method of graphene / zinc oxide nanocomposite material, comprises the following steps:

[0022] (1) Dissolve graphene oxide and nano-zinc oxide in ethanol / benzyl alcohol mixed solvent, add hexadecyltrimethylammonium bromide and titanate coupling agent, ultrasonically disperse for 0.5h, and then mechanically stir for 0.5h , to obtain a mixed solution; wherein the mass ratio of graphene oxide to nano zinc oxide is 2:11, and the mass ratio of graphene oxide to titanate coupling agent is 10:1.

[0023] (2) Transfer the mixed solution to an airtight container, pass through nitrogen protection, and react at 170°C for 6 hours to obtain a reduction reaction solution;

[0024] (3) Naturally cool the reduction reaction solution to room temperature, filter, wash with absolute ethanol until neutral, dry in vacuum and pulverize to obtain a graphene / zinc oxide nanocomposite material.

Embodiment 2

[0026] A kind of preparation method of graphene / zinc oxide nanocomposite material, comprises the following steps:

[0027] (1) Dissolve graphene oxide and nano-zinc oxide in ethanol / benzyl alcohol mixed solvent, add hexadecyltrimethylammonium bromide and titanate coupling agent, ultrasonically disperse for 0.5h, and then mechanically stir for 0.5h , to obtain a mixed solution; wherein the mass ratio of graphene oxide to nano zinc oxide is 1:8, and the mass ratio of graphene oxide to titanate coupling agent is 10:1.

[0028] (2) Transfer the mixed solution to an airtight container, pass through argon protection, and react at 130°C for 10 hours to obtain a reduction reaction solution;

[0029] (3) Naturally cool the reduction reaction solution to room temperature, filter, wash with absolute ethanol until neutral, dry in vacuum and pulverize to obtain a graphene / zinc oxide nanocomposite material.

Embodiment 3

[0031] A kind of preparation method of graphene / zinc oxide nanocomposite material, comprises the following steps:

[0032] (1) Dissolve graphene oxide and nano-zinc oxide in ethanol / benzyl alcohol mixed solvent, add hexadecyltrimethylammonium bromide and titanate coupling agent, ultrasonically disperse for 0.5h, and then mechanically stir for 0.5h , to obtain a mixed solution; wherein the mass ratio of graphene oxide to nano zinc oxide is 1:7, and the mass ratio of graphene oxide to titanate coupling agent is 10:1.

[0033] (2) Transfer the mixed solution to an airtight container, pass through nitrogen protection, and react at 150°C for 8 hours to obtain a reduction reaction solution;

[0034] (3) Naturally cool the reduction reaction solution to room temperature, filter, wash with absolute ethanol until neutral, dry in vacuum and pulverize to obtain a graphene / zinc oxide nanocomposite material.

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PUM

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Abstract

The invention relates to the nanocomposite field and especially relates to a preparation method of a graphene / zinc oxide nanocomposite and a purpose thereof. The preparation method of the graphene / zinc oxide nanocomposite comprises the following steps of (1) dissolving graphene oxide and nano-zinc oxide into an ethanol / benzyl alcohol mixed solvent, adding cetyl trimethyl ammonium bromide and a titanate coupling agent, and after an ultrasonic wave is dispersed, carrying out mechanical stirring so as to acquire a mixed liquor; (2) transferring the mixed liquor to a closed container, inletting a protection gas, and carrying out a reaction for 6-10 hs at 130-170 DEG C so as to acquire a reduction reaction liquid; and (3) naturally cooling the reduction reaction liquid to a room temperature, filtering, washing so that the liquid becomes neutral, drying in a vacuum mode and then crushing so as to acquire the graphene / zinc oxide nanocomposite, The preparation method is simple and easy to perform. The acquired graphene / zinc oxide nanocomposite fully combines a high theoretical capacity of the zinc oxide and high conductivity of the graphene and can be used as an electrode material to be applied to a super capacitor.

Description

technical field [0001] The invention relates to the field of nanocomposite materials, in particular to a preparation method and application of a graphene / zinc oxide nanocomposite material. Background technique [0002] Disperse inorganic materials into the surface of graphene nanosheets to make graphene / inorganic nanocomposites, in which the presence of inorganic nanoparticles can increase the distance between graphene sheets to several nanometers, thereby greatly reducing the size of graphene sheets. The interaction between layers allows the uniqueness of single-layer graphene to be preserved, which is difficult to achieve by the usual chemical modification methods. Therefore, the modification of graphene with inorganic nanoparticles provides a new way to organize graphene aggregates. From another point of view, graphene / inorganic nanocomposites can not only maintain the inherent characteristics of graphene and inorganic nanoparticles, but also produce synergistic effects,...

Claims

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Application Information

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IPC IPC(8): H01G11/24H01G11/30H01G11/36H01G11/46H01G11/86
CPCY02E60/13H01G11/24H01G11/30H01G11/36H01G11/46H01G11/86
Inventor 汪洋陈启志江盈肖美玲
Owner ANHUI NINGGUO TIANCHENG ELECTRICAL APPLIANCES
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