A kind of preparation method and application of graphene/cobalt nickel manganese ferrite nanocomposite material

A nano-composite material, cobalt-nickel-manganese technology, applied in the field of microwave-absorbing materials, can solve problems such as complex process flow, long reaction time, and harmful reaction solvents
CN109021919BActive Publication Date: 2021-03-12CENT SOUTH UNIV
9 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CENT SOUTH UNIV
Publication Date
2021-03-12

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses a preparation method and application of a graphene / cobalt-nickel-manganese ferrite nanocomposite material. Add the solution containing iron source, cobalt source, nickel source, and manganese source dropwise into the dispersion liquid containing graphene oxide to obtain a mixed solution, adjust the pH of the mixed solution to ≥ 8, and then add a reducing agent to obtain a precursor solution. The solid solution is transferred into a reaction kettle for microwave synthesis reaction, and the obtained reaction product is graphene / cobalt nickel manganese ferrite nanocomposite material. Gained graphene / cobalt-nickel-manganese ferrite nanocomposite material is made of layered graphene and spherical cobalt-nickel-manganese ferrite nanoparticles, and the spherical cobalt-nickel-manganese ferrite nanoparticles are uniformly dispersed in the layered graphene surface and interlayer. The graphene / cobalt-nickel-manganese ferrite nanocomposite material has the characteristics of strong absorption strength, effective wave absorption frequency band, thin thickness and light weight.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention belongs to the technical field of wave-absorbing materials, and in particular relates to a preparation method and application of a graphene / cobalt-nickel-manganese ferrite nanocomposite material. Background technique

[0002] In recent years, with the rapid development of the electronics and communication industries, electromagnetic pollution and electromagnetic interference frequently flood the daily living space, which has seriously affected our health and daily life; on the other hand, from the perspective of air strike and strategic defense, stealth Aircraft has received unprecedented attention from all military powers. Therefore, there is an increasing demand for electromagnetic wave absorbing materials in the GHz range, both in military and civilian applications. From the perspective of application, especially in the military field, the demand for absorbing stealth materials is becoming increasingly stringent, and absorbing materia...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More