A kind of agnps/mos 2 Functional composite material and preparation method thereof

Abstract

The invention relates to a AgNPs / MoS2 functional composite material and a preparation method of the AgNPs / MoS2 functional composite material. MoS2 samples are weighed and added into a sodium dodecyl sulfate aqueous solution, ball milling and centrifuging are performed, aggregated matter is removed, supernatant is taken, finally, ultrasonic processing and drying are performed, and layered MoS2 nano-sheets are obtained; AgNO3 is weighed and dissolved in deionized water, the AgNO3 dissolved in the deionized water is stirred and heated till the AgNO3 dissolved in the deionized water is boiled, a sodium citrate solution is added, heating continues, boiling lasts for one hour, and a Ag nano-particle solution is obtained; Ag nano-particles and the layered MoS2 nano-sheets are mixed according to the mass ratio of 1:20, a CuSO4 solution is added, ultrasonic processing is performed for 45-55 h, 0D / 2D materials are made to be fully assembled automatically, mixed liquid is subjected to centrifugal cleaning, and finally drying is performed in a vacuum drying box. AgNPs is evenly distributed on the surface of the MoS2 nanosheets, the particles are uniform in size and are 4-5 nanometers long, and good electrochemical performance is shown.

Description

technical field [0001] The present invention relates to a kind of AgNPs / MoS 2 Functional composite materials and their preparation methods, especially a kind of AgNPs / MoS prepared by layered self-assembly 2 A method for a functional composite material; the material has good electrochemical properties and a simple preparation process, and belongs to the technical fields of composite materials, energy materials, supercapacitors and lithium batteries. Background technique [0002] With the rapid development of science and technology, the population on the earth has increased rapidly, coupled with the greenhouse effect, the climate has undergone tremendous changes, and petrochemical resources are gradually being exhausted. The environment and energy are facing serious challenges. Therefore, the development of new energy has become a priority for developed and developing countries. It is of great significance to develop new energy materials with good electrochemical performance....

AI Technical Summary

Problems solved by technology

[0003] Due to the existence of quantum size effects, metal nanoparticles have unique properties such as light, electricity, magnetism, heat, and mechanics. These unique properties make metal nanoparticles have broad application prospects in the fields of catalysis, materials, information science, and biomedicine. ; however, unmodified metal nanoparticles are unstable and tend to agglomerate and lose their excellent properties

Images