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Ferrite material and MXenes composite material and preparation method and application thereof

A technology of ferrite materials and composite materials, applied in the field of composite materials, to achieve the effect of good electrical conductivity and good impedance matching performance

Active Publication Date: 2016-03-23
NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the ferrite material has a high density, will transform into an insulator at low temperature, and has the problem of brittleness of ceramic materials, which limit its application in special fields such as high-order mode absorbers (accelerators) and space weapons and equipment (aerospace)

Method used

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  • Ferrite material and MXenes composite material and preparation method and application thereof
  • Ferrite material and MXenes composite material and preparation method and application thereof
  • Ferrite material and MXenes composite material and preparation method and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0031] In this embodiment, the ferrite material is Ni 0.5 Zn 0.5 Fe 2 o 4 , MXenes material is Ti 3 C 2 T x, the ferrite material and MXenes material constitute a composite material, wherein the mass percentage of the ferrite material is 20%, the mass percentage of MXenes is 80%, and its chemical expression is MXenes-20wt.%Ni 0.5 Zn 0.5 Fe 2 o 4 ; and, ferrite molecules grow in situ in the sheet structure of MXenes.

[0032] The concrete preparation method of above-mentioned composite material is as follows:

[0033] (1) Weigh 0.5gTi 3 C 2 T x Dissolved in a supersaturated solution of sodium lignosulfonate, and ultrasonically crushed for 45 minutes to obtain a uniformly dispersed MXenes solution;

[0034] (2) Press ferrite material Ni at room temperature 0.5 Zn 0.5 Fe 2 o 4 The molar ratio of Ni 2+ :Zn 2+ :Fe 3+ =0.5:0.5:2 Weigh Ni(NO 3 ) 2 ·6H 2 O, Zn(NO 3 ) 2 ·6H 2 O and Fe(NO 3 ) 3 9H 2 O, was added to the MXenes solution to obtain a mixed solut...

Embodiment 2

[0040] In this embodiment, the ferrite material is Ni 0.5 Zn 0.5 Fe 2 o 4 , MXenes material is Ti 3 C 2 T x , the ferrite material and MXenes material constitute a composite material, wherein the mass percentage of the ferrite material is 98%, the mass percentage of MXenes is 2%, and its chemical expression is Ni 0.5 Zn 0.5 Fe 2 o 4 -2wt.% MXenes; and, ferrite molecules are grown in-situ in the sheet structure of MXenes.

[0041] The above Ni 0.5 Zn 0.5 Fe 2 o 4 The specific preparation method of -2wt.% MXenes composite material is as follows:

[0042] (1) Weigh 0.5gTi 3 C 2 T x Dissolved in a supersaturated solution of sodium lignosulfonate, and ultrasonically crushed for 45 minutes to obtain a uniformly dispersed MXenes solution;

[0043] (2) Press ferrite material Ni at room temperature 0.5 Zn 0.5 Fe 2 o 4 The molar ratio of Ni 2+ :Zn 2+ :Fe 3+ =0.5:0.5:2 Weigh Ni(NO 3 ) 2 ·6H 2 O, Zn(NO 3 ) 2 ·6H 2 O and Fe(NO 3 ) 3 9H 2 O, adding the MXene...

Embodiment 3

[0055] In this embodiment, the ferrite material is CoFe 2 o 4 , the MXenes material is V 3 C 2 T x , the ferrite material and MXenes material constitute a composite material, wherein the mass percentage of the ferrite material is 90%, the mass percentage of MXenes is 10%, and its chemical expression is CoFe 2 o 4 -10wt.% MXenes; and, ferrite molecules are grown in-situ in the sheet structure of MXenes.

[0056] The above-mentioned CoFe 2 o 4 The specific preparation method of -10wt.% MXenes composite material is as follows:

[0057] (1) Weigh 0.5gV 3 C 2 T x Dissolved in a supersaturated solution of sodium dodecylbenzenesulfonate, and ultrasonically crushed for 45 minutes to obtain a uniformly dispersed MXenes solution;

[0058] (2) Press the ferrite material CoFe at room temperature 2 o 4 The molar ratio of Co 2+ :Fe 3+ =1:2 Weigh Co(NO 3 ) 2 ·6H 2 O and Fe(NO 3 ) 3 9H 2 O, adding the MXenes solution configured in step (1) to obtain a mixed solution one, ...

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Abstract

The invention provides a ferrite material and MXenes composite material. Ferrite molecules are dispersed in a lamellar structure of MXenes. The ferrite material and MXenes composite material has good electrical conductivity, and accordingly, even when the temperature is lower than 260K, the ferrite material and MXenes composite material can still keep a certain electrical conductivity; the ferrite material and MXenes composite material good in impedance matching performance can be applied to various electronic parts and components such as anti-electromagnetic interference antennae, filters and inductance components by serving as a wave-absorbing material and is particularly applicable to wave absorption at low temperatures.

Description

technical field [0001] The invention relates to the technical field of composite materials, in particular to a composite material of ferrite material and MXenes, its preparation method and application. Background technique [0002] With the rapid development of the electronic information industry, mobile communication devices such as notebook computers, mobile phones, and tablet computers have become popular, covering almost every family, and becoming an indispensable part of daily life. However, with the sharp increase in the use of these wireless communication devices and high-frequency electronic devices, the phenomenon of electromagnetic interference (Electromagnetic interference) and electromagnetic pollution problems are also intensified. [0003] Ferrite material is a double-complex medium, which not only has the ohmic loss, polarization loss, ion and electronic resonance loss of general dielectric materials, but also has the unique domain wall resonance loss, magneti...

Claims

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Application Information

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IPC IPC(8): C04B35/56C04B35/30C04B35/32C04B35/622
CPCC04B35/265C04B35/2666C04B35/5611C04B35/622C04B2235/3274C04B2235/3839C04B2235/3843C04B2235/658C04B2235/666C04B2235/667
Inventor 黄庆周小兵叶群陈科陈冉
Owner NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
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