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A kind of high entropy ferrite porous ceramic material and its preparation method and application

A porous ceramic and ferrite technology, applied in the field of high-entropy ferrite porous ceramic materials and its preparation, can solve the problems of weak synergistic catalytic effect of multi-components, no self-supporting ability, low recovery rate, etc., and achieve pore Controllable structure and chemical components, easy operation and production, and high stability

Active Publication Date: 2022-08-09
JIANGXI SCI & TECH NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, spinel ferrite (general structural formula AFe 2 o 4 ) has less than 5 components on the A site, and the synergistic catalytic effect of multiple components is weak. At the same time, the catalyst is still a powder particle, which is difficult to avoid loss when the effluent is discharged, and the recovery rate is low.
[0006] Chinese patent application CN113045304A discloses a mixed spinel structure ferrite absorbing material and its preparation method, its molecular formula is Co 1-x Ni x Fe 2 o 4 , the results show that the material has a good microwave absorption effect in the 2-18GHz microwave band, but the material is still powdery and has no self-supporting ability, and the component types of the A site are less than 5
[0007] To sum up, there is still a lack of a ferrite multifunctional material with a certain macroscopic size, which is convenient for portable transportation, storage, recycling, self-supporting ability, high entropy effect and foam structure in the prior art.

Method used

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  • A kind of high entropy ferrite porous ceramic material and its preparation method and application
  • A kind of high entropy ferrite porous ceramic material and its preparation method and application
  • A kind of high entropy ferrite porous ceramic material and its preparation method and application

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Effect test

Embodiment 1

[0061] Embodiment 1 High entropy (Mg 0.2 Co 0.2 Ni 0.2 Zn 0.2 Cu 0.2 )Fe 2 O 4 Preparation of Porous Ceramic Materials

[0062] According to (Mg 0.2 Co 0.2 Ni 0.2 Zn 0.2 Cu 0.2 )Fe 2 O 4 (i.e. (0.4-x):x:0.2:0.2:0.2:2, x=0.2) weigh magnesium nitrate, cobalt nitrate, nickel nitrate, zinc nitrate, copper nitrate and iron nitrate, The obtained mixture is mixed with distilled water; in addition, fuel glycine is added according to the chemical equation of complete combustion reaction, the molar ratio of nitrate ion and glycine is 2:1, and the mixture is completely dissolved by stirring to obtain a mixed solution.

[0063] Adjust the pH value of the mixed solution with ammonia water to 4.1 to obtain a precursor solution, transfer the precursor solution to a quartz crucible, heat it on an electric furnace to evaporate the water and finally undergo a combustion reaction to obtain a precursor powder.

[0064] The obtained precursor powder is placed in a muffle furnace at 1...

Embodiment 2

[0069] Embodiment 2 high entropy (Mg 0.3 Co 0.1 Ni 0.2 Zn 0.2 Cu 0.2 )Fe 2 O 4 Preparation of Porous Ceramic Materials

[0070] According to (Mg 0.3 Co 0.1 Ni 0.2 Zn 0.2 Cu 0.2 )Fe 2 O 4 (i.e. (0.4-x):x:0.2:0.2:0.2:2, x=0.1) weigh magnesium nitrate, cobalt nitrate, nickel nitrate, zinc nitrate, copper nitrate and ferric nitrate, The obtained mixture is mixed with distilled water; in addition, fuel glycine is added according to the chemical equation of the complete combustion reaction, and the molar ratio of nitrate ion to glycine is 3:1, and the mixture is completely dissolved by stirring to obtain a mixed solution.

[0071]The pH value of the mixed solution is adjusted with ammonia water to 5.2 to obtain a precursor solution, which is transferred to a quartz crucible, heated on an electric furnace to evaporate the water and finally undergo a combustion reaction to obtain a precursor powder.

[0072] The obtained precursor powder is placed in a muffle furnace at ...

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Abstract

The invention discloses a high-entropy ferrite porous ceramic material, a preparation method and application thereof, and belongs to the field of inorganic functional materials. The chemical composition of the high-entropy ferrite porous ceramic material is (Mg 0.4‑x Co x Ni 0.2 Zn 0.2 Cu 0.2 )Fe 2 O 4 , where the value range of x is 0

Description

technical field [0001] The invention belongs to the field of inorganic functional materials, and in particular relates to a high-entropy ferrite porous ceramic material and a preparation method and application thereof. Background technique [0002] The waste liquid, automobile exhaust and industrial waste gas discharged in today's industrial production bring more and more serious damage to the human living environment. Mainly, the ingredients are complex, and the direct purification treatment is extremely difficult. Heterogeneous catalytic degradation technology is a typical strategy for cost-effective removal of pollutants. [0003] Spinel type ferrite (structure of general formula AFe 2 O 4 , A=Fe, Cu, Ni, Co, Mn, Zn, etc.) have magnetic properties, and the microstructures such as the changeable oxygen defect vacancies in the crystal lattice, the combination of various metal ion valence states, and the easily excited energy bands will cause changes. The microscopic int...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B38/10C04B38/00C04B35/26C04B35/622B01J23/80B01J32/00C02F1/00B01D53/94C02F103/30
CPCC04B38/10C04B38/0058C04B35/2625C04B35/265C04B35/622B01J23/80B01J23/002C02F1/00B01D53/94B01J2523/00C02F2103/30B01D2258/012C04B2235/3206C04B2235/3275C04B2235/3279C04B2235/3284C04B2235/3281C04B2235/549B01J2523/17B01J2523/22B01J2523/27B01J2523/842B01J2523/845B01J2523/847Y02W10/37
Inventor 艾建平胡丽玲李萌刘淑婷江博帆程丽红李文魁
Owner JIANGXI SCI & TECH NORMAL UNIV
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