Fluorine-doped graphene loaded CuO composite material as well as preparation method and application thereof

Abstract

The invention belongs to the technical field of nano composite materials, and particularly relates to a fluorine-doped graphene loaded CuO composite material and a preparation method and application thereof, the preparation method comprises the following steps: dissolving graphene oxide in water, performing ultrasonic dispersion, uniformly mixing with trifluoroacetic acid, performing high-temperature reaction, washing with distilled water, and drying to obtain fluorine-doped graphene; the preparation method comprises the following steps: ultrasonically dispersing fluorine-doped graphene, adding copper nitrate, mixing, heating, adding excessive hydrazine hydrate, stirring, continuously heating, cooling to room temperature, washing and drying to obtain an intermediate product; and placing the intermediate product in a nitrogen atmosphere, heating and calcining to obtain the product. According to the invention, the loaded metal nanoparticles are loaded on the graphene in a shape-controllable and uniformly-distributed manner, the capability of dispersing the nanoparticles to promote electron transfer in the reaction process is enhanced, and the heat conduction performance is improved, so that the purposes of improving and stabilizing the combustion speed of the solid fuel in the combustion process and reducing the pressure index are achieved.

Description

technical field [0001] The invention belongs to the technical field of nano-composite materials, and in particular relates to a fluorine-doped graphene-loaded CuO composite material and a preparation method and application thereof. Background technique [0002] With the continuous development of nanotechnology, nano-catalysts have attracted much attention due to their small particle size, large specific surface area, rich catalytic active sites, and better catalytic effects than traditional catalysts. Nano-transition metal oxides have been widely used to catalyze high chlorine ammonium perchlorate and ammonium perchlorate based solid fuels. CuO nanoparticles have attracted widespread attention due to their outstanding and unique characteristics in catalysis and other aspects. In existing reports, researchers have prepared nano-CuO by rapid liquid phase precipitation, and further studied the different forms of CuO. Catalytic effect of nano-sized CuO on thermal decomposition ...

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Problems solved by technology

[0004] However, due to the huge difference in electronegativity between carbon and fluorine, it is difficult to form carbon-fluorine bonds effectively, so fluorine doping has very strict requirements on experimental conditions and environments.

In addition, in addition to the easy aggregation of nanoscale loaded particles, its microscopic morphology is also difficult to control, both of which make fluorine-doped graphene composite nanomaterials more difficult than other types of materials.

[0005] At present, some commonly used solid fuels have problems such as reduced mechanical strength, poor stability, and increased combustion pressure index during the combustion process. For this reason, people generally use combustion-supporting catalysts to improve this problem. The addition of catalysts is accompanied by an increase in cost. However, generally The nano-combustion catalysts are easy to agglomerate, resulting in the reduction of active sites, the reduction of catalytic performance, and the unsatisfactory catalytic effect, and the simple mechanical mixing of catalysts and solid fuels not only easily destroys the structure of catalysts and fuels, but also easily weakens the relationship between catalyst components. uniform dispersion of

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