Preparation method of nano-nickel oxide

Abstract

The invention relates to a preparation method of nano-nickel oxide. The method comprises the following steps: (1) mixing oleic acid with an octadecene solvent, stirring and heating, adding nickel acetylacetonate, and stirring under the heating condition so as to obtain a light green mixed solution; (2) mixing oleylamine with a surfactant, adding the obtained mixture into the light green mixed solution, and stirring under the heating condition so as to obtain a precursor of the product; (3) carrying out heat preservation on the precursor of the product at 200-220 DEG C for 6-10h, taking out andthen naturally cooling to the room temperature to obtain a gray-green nickel oxide solution; (4) pouring a centrifugation solution into the gray-green nickel oxide solution, centrifuging, removing supernatant and leaving bottom precipitate, adding a cleaning solution into the precipitate, dispersing the precipitate in the clean solution, and washing repeatedly to obtain the nano-scale nickel oxide. The preparation method is low in price of used raw materials and simple in experimental operation, does not require a harsh reaction environment, does not produce toxic gas, is simple in purification, and can be used for rapidly obtaining the nano-nickel oxide.

Description

technical field [0001] The invention belongs to the field of chemical science, and in particular relates to a preparation method of nano-nickel oxide. Background technique [0002] When the size of the particle is small to the nanometer level, many inherent properties of the substance itself undergo qualitative changes, showing singular physical and chemical properties, that is, its optical, thermal, electrical, magnetic, mechanical and chemical properties and properties. Compared with bulk solids, there will be significant differences, and the so-called "abnormal" phenomenon appears, which is called "nano effect"; specifically, it mainly includes surface effects, small size effects, quantum size effects, and macroscopic quantum tunneling. effect, Coulomb blocking effect, etc. It is precisely because of these special properties of nanoparticles that nanomaterials have broad application prospects in magnetic materials, electronic materials, optical materials, and high-streng...

AI Technical Summary

Problems solved by technology

The gas phase method has the characteristics of high yield and large production capacity, but it is difficult to control the shape.

Such as CN 107855125 A discloses a kind of preparation method of nano-scale nickel oxide, it needs long-term high-temperature roasting through muffle furnace, energy consumption is high, and the particle size of obtained nickel oxide is not uniform, which is unfavorable for wide application

[0005] To sum up, the application and development of nano-nickel oxide are limited due to its relatively large production capacity, complicated preparation process, inhomogeneous morphology, and harsh reaction conditions.

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