Preparation method of rare earth oxide and graphene nanocomposite material

Abstract

Provided is a preparation method of a rare earth oxide and graphene nanocomposite material. The method comprises the following steps that 1, an aqueous solution containing needed amount of rare earth nitrate is prepared according to the loading capacity of rare earth oxide on graphene and the preparation quantity of a target product and added into a certain volume of graphene oxide dispersing agent of which the concentration ranges from 0.5 g / L to 5 g / L; 2, an appropriate amount of organic fuel is added into the dispersing agent in the first step, stirring and ultrasound are conducted, and a uniform dispersing agent is obtained; 3, the dispersing agent in the first step is heated and concentrated to be thick, the heated and concentrated dispersing agent is put into a heating furnace of 300 DEG C-900 DEG C for ignition, and after burning is conducted, cooling is conducted to room temperature. The preparation method of the rare earth oxide and graphene nanocomposite material is low in synthesis temperature, short in time, easy to carry out and low in cost, a reducing agent does not need to be additionally added, and graphene oxide is subjected to self reduction to obtain graphene; meanwhile, rare earth oxide is small in particle size and uniform in size, and the uniform dispersibility on graphene is achieved. The preparation method of the rare earth oxide and graphene nanocomposite material is rapid, efficient, high in yield, green, environmentally friendly and suitable for industrial production.

Description

technical field [0001] The invention belongs to the technical field of material synthesis, and relates to a preparation method of carbon-based nanocomposite materials. technical background [0002] Graphene is a carbon atom with sp 2 The two-dimensional carbon nanomaterials with a honeycomb shape of a hybrid connection and a single atomic layer thickness have a high specific surface area, excellent thermal conductivity, good mechanical properties and excellent electron transfer capabilities due to their unique structure. The synergistic enhancement after compounding with inorganic materials has great advantages in catalysis, energy storage and conversion, sensors and other applications, but the direct compounding of graphene and metal oxides is very difficult. Graphene oxide is an important oxidized derivative of graphene. Its surface is rich in oxygen-containing functional groups. It is an unconventional soft material with properties of polymers, colloids, films, and amphi...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to propose a preparation method of a rare earth oxide / graphene nanocomposite material, which solves the problems of long time consumption, poor product stability, poor dispersion, poor crystallization of rare earth oxides, and unfavorable commercial synthesis in the prior art. , the present invention does not need reducing agent, low energy consumption, short time consumption, green environmental protection, easy to operate

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