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A kind of mxene-magnetic metal composite material and preparation method thereof

A magnetic metal and composite material technology, applied in the direction of inorganic material magnetism, inductor/transformer/magnet manufacturing, electrical components, etc., can solve the problems of poor comprehensive performance of materials, high Snoek limit, etc., achieve low cost, less investment equipment, The effect of good electrical conductivity and magnetic properties

Active Publication Date: 2020-11-03
ZHENGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the high Snoek limit of magnetic materials Ni and Co, it is easy to cause agglomeration and the overall performance of the material is not good.

Method used

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  • A kind of mxene-magnetic metal composite material and preparation method thereof
  • A kind of mxene-magnetic metal composite material and preparation method thereof
  • A kind of mxene-magnetic metal composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] A preparation method of MXene-magnetic metal composite material, the steps are as follows:

[0035] (1) Put 2 g of MAX phase material in 40 mL of hydrochloric acid (40% mass concentration) and 2 g of lithium fluoride mixture, etch at 35 °C for 24 h, wash and dry to obtain MXene;

[0036] (2) Disperse 80 mg of MXene prepared in step (1) in a mixture of 100 mL of ethylene glycol and 9 mL of deionized water and stir evenly, then add 1.18 g of nickel chloride hexahydrate (NiCl 2 ·6H 2 (0) and stir, then add NaOH to adjust the pH value of the system to be 10, then add 5 mL of hydrazine hydrate, stir;

[0037] (3) Heat the mixed solution obtained in step (2) to 80 °C and keep it warm for 1 h;

[0038] (4) The solution obtained in step (3) was cooled, separated, washed with deionized water and ethanol for several times, and dried to obtain the MXene-magnetic metal composite material (referred to as MXene-Ni).

[0039] The scanning electron microscope picture of the MXene-ma...

Embodiment 2

[0043] A preparation method of MXene-magnetic metal composite material, the steps are as follows:

[0044](1) Put 1 g of MAX phase material in 20 mL of hydrochloric acid (40% mass concentration) and 1 g of lithium fluoride mixture, etch at 35 °C for 25 h, wash and dry to obtain MXene;

[0045] (2) Disperse 50 mg of MXene prepared in step (1) in a mixture of 48 mL of ethylene glycol and 6 mL of deionized water and stir evenly, then add 0.59 g of nickel chloride hexahydrate (NiCl 2 ·6H 2 (2) and stir, then add NaOH to adjust the pH of the system to be 11, then add 2.5 mL of hydrazine hydrate, stir;

[0046] (3) Heat the mixed solution obtained in step (2) to 78 °C and keep it warm for 1 h;

[0047] (4) The solution obtained in step (3) was cooled, separated, washed with deionized water and ethanol for several times, and dried to obtain the MXene-magnetic metal composite material (referred to as MXene-Ni).

[0048] The scanning electron microscope picture of the MXene-magnetic...

Embodiment 3

[0050] A preparation method of MXene-magnetic metal composite material, the steps are as follows:

[0051] (1) Put 1 g of MAX phase material in 20 mL of hydrochloric acid (40% mass concentration) and 1 g of lithium fluoride mixture, etch at 35 °C for 25 h, wash and dry to obtain MXene;

[0052] (2) Disperse 100 mg of MXene prepared in step (1) in a mixture of 51 mL of ethylene glycol and 5 mL of water and stir evenly, then add 0.5 g of nickel nitrate hexahydrate (Ni(NO 3 ) 2 ·6H 2 (0) and stir, then add NaOH to adjust the pH value of the system to be 10, then add 2 mL of hydrazine hydrate, stir;

[0053] (3) Heat the mixed solution obtained in step (2) to 78 °C and keep it warm for 1 h;

[0054] (4) The solution obtained in step (3) was cooled, separated, washed with deionized water and ethanol for several times, and dried to obtain the MXene-magnetic metal composite material (referred to as MXene-Ni).

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Abstract

The invention belongs to the field of nano magnetic composite material preparation, and discloses a MXene-magnetic metal composite material and a preparation method thereof. The MXene-magnetic metal composite material is composed of flake MXene and magnetic metal nanoparticles uniformly loaded on the MXene. The preparation method comprises the steps of: dispersing the Mxene in a mixed liquid consisting of ethylene glycol and water, adding a magnetic metal salt into the mixed liquid and stirring the mixture, then adding NaOH into the mixture to adjust a system pH value to 8-14, then adding hydrazine hydrate into the mixture, and stirring the mixture evenly; heating the mixture to 60-120 DEG C and keeping the temperature for 0.2 to 8 h; cooling, separating, washing and drying the mixture toobtain the MXene-magnetic metal composite material. The preparation method adopts the ethylene glycol and water as a solvent and the MXene as a carrier, the magnetic cations are adsorbed on the surface of the MXene selectively and heated at the temperature of 60-120 DEG C, the magnetic cations are gradually reduced to magnetic nanoparticles under the common reducing action of hydrazine hydrate andethylene glycol, and the final prepared MXene-magnetic metal composite material integrates the properties of the MXene and magnetic metal.

Description

technical field [0001] The invention belongs to the field of nano-magnetic composite material preparation, and in particular relates to an MXene-magnetic metal composite material and a preparation method thereof. Background technique [0002] MXenes are two-dimensional materials synthesized by extracting "A" layers from layered carbides or carbonitrides called MAX phases. The MAX phase has the general formula M n + 1 AX n (n =1, 2, 3), where M represents a transition metal element, A represents a IIIA or IVA element (such as Al, Ga, Si or Ge), and X represents C and / or N. During the process of MAX phase being etched into MXene, functional groups such as -O, -OH, and -F are attached on the surface of MXene, and the presence of these functional groups also provides the possibility for the loading of other nanoparticles. MXene has excellent electrical conductivity. Usually, different particles can be loaded to modify MXene to improve the comprehensive performance according t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01F1/01H01F41/00B22F9/24B82Y40/00
Inventor 冯跃战梁鹿阳韩高杰李亮周兵王亚明刘春太
Owner ZHENGZHOU UNIV
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