Method for preparing supported nickel oxide nano-particles

Abstract

The invention discloses a method for preparing supported nickel oxide. The method includes effectively decomposing a precursor NiCp2 under oxygen atmosphere conditions at the temperatures of 500-600 DEG C, carrying out reaction, generating nickel oxide nano-particles and uniformly dispersing the nickel oxide nano-particles on cubic boron nitride powder carriers. The method has the advantages that experimental parameters such as the precursor NiCp2 content and the oxygen content are changed, accordingly, the NiCp2 can be quickly decomposed and coated, the size and microscopic structures of powder are controlled, the cubic boron nitrate powder keeps in stirred states, the nickel oxide nano-particles can be prepared and uniformly dispersed on the surfaces of the cubic boron nitride powder carriers, and carbon pollution in reaction procedures can be prevented; the method is simple and is short in preparation cycle, and the nickel oxide nano-particles prepared by the aid of the method are uniformly dispersed and can have broad application prospects in diversified field when used as catalytic materials, functional materials and the like.

Description

technical field [0001] The invention relates to a preparation method of nickel oxide nanoparticles, in particular to a preparation method of supported nickel oxide nanoparticles, and belongs to the field of material processing engineering. Background technique [0002] Nickel oxide is a typical P-type semiconductor with good heat-sensing and gas-sensing properties, and is a promising functional material. The ultra-fine particle size of nano-nickel oxide has greatly changed its surface structure and crystal structure, resulting in surface effects, small size effects, quantum size effects and macroscopic quantum tunneling effects, etc., thus showing excellent catalytic performance and electrical properties. Because of its excellent catalytic and electrical properties, nano-nickel oxide particles have broad application prospects in the fields of biology, catalysis, food, medicine, energy, artificial intelligence, and information. Especially in supercapacitor active materials,...

AI Technical Summary

Problems solved by technology

Among them, the solid-phase method has attracted great attention from researchers because of its advantages such as low cost, strong selectivity, high yield, simple preparation process, and easy control of reaction conditions. However, the solid-phase method also has high energy consumption, low efficiency, The particle size of the product is not fine enough and the particles are easily oxidized and deformed.

Atoms in the solid phase are often transported in the form of diffusion or penetration, and the spatial coordination distribution between atoms restricts the reaction process; due to the existence of a solid particle layer, the transport of matter and energy is slow; moreover, the components participating in the reaction Often not evenly dispersed, the incompleteness of the structure and the apparent characteristics of the solid sample will restrict the physical properties of the solid sample

[0004] At present, the technology for preparing nano-nickel oxide is still immature, and the obtained nano-nickel oxide particles have large particle sizes and large differences in shapes, and the prepared nano-nickel oxide particles are easy to agglomerate, and the use efficiency is not high.

The agglomeration of nano-nickel oxide has become a bottleneck restricting the promotion and use of nano-nickel oxide in various fields

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