Preparation method of monodisperse ferrum-acid-nickel-zinc nano material

A technology of nickel-zinc ferrite and nanomaterials, applied in the direction of nanostructure manufacturing, nanotechnology, nanotechnology, etc., to achieve the effects of low production cost, convenient industrial production, and simple process operation

Inactive Publication Date: 2010-10-06
BEIJING UNIV OF CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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  • Preparation method of monodisperse ferrum-acid-nickel-zinc nano material
  • Preparation method of monodisperse ferrum-acid-nickel-zinc nano material
  • Preparation method of monodisperse ferrum-acid-nickel-zinc nano material

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Embodiment 1

[0020] Weigh 0.5mmol of nickel acetylacetonate, 0.5mmol of zinc acetylacetonate and 2mmol of iron acetylacetonate into a 250ml three-necked flask, then add 30mmol of octadecylamine and 64mmol of diphenyl ether; heat up to 110°C for one hour to remove the drug Then heat up to the boiling point of the solution and react for 8 hours. After the reaction, the solution is cooled to 60°C and transferred to a centrifuge tube. Add 30ml of ethanol to settle and centrifuge. The product is washed with ethanol three times, dried at 70°C for 12h, and ground to obtain Ni 0.5 Zn 0.5 Fe 2 o 4 Brown solid powder. figure 1 is its XRD pattern, figure 2 is its TEM image. It can be seen from the figure that the particle size distribution is 6-12nm.

Embodiment 2

[0022] Weigh 0.5mmol of nickel acetylacetonate, 0.5mmol of zinc acetylacetonate and 2mmol of iron acetylacetonate into a 250ml three-necked flask, then add 30mmol of octadecylamine and 128mmol of diphenyl ether; raise the temperature to 100°C for three hours, then raise the temperature React for 12 hours at the boiling point of the solution, transfer the solution to a centrifuge tube when it cools down to 60°C after reaction, add 60ml of ethanol to settle, centrifuge, wash the product with ethanol three times, dry at 70°C for 12h, and grind to obtain brown Ni 0.5 Zn 0.5 Fe 2 o 4 solid powder.

Embodiment 3

[0024]Weigh 0.1mmol of nickel acetylacetonate, 0.9mmol of zinc acetylacetonate and 2mmol of iron acetylacetonate into a 250ml three-necked flask, then add 4mmol of octadecylamine and 160mmol of diphenyl ether; heat up to 110°C for one hour, then heat up to Reaction at the boiling point of the solution for 10 hours. After the reaction, the solution is cooled to 100°C and transferred to a centrifuge tube. Add 50ml of ethanol to settle and centrifuge. The product is washed with ethanol three times, dried at 50°C for 24 hours, and ground to obtain brown Ni. 0.1 Zn 0.9 Fe 2 o 4 solid powder.

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Abstract

The invention provides a preparation method of a monodisperse ferrum-acid-nickel-zinc nano material. In the method, acetylacetone nickel, acetylacetone zinc and acetylacetone ferrum are used as raw materials, octadecylamine is used as a ligand, diphenyl ether is used as a solvent, and thus the monodisperse ferrum-acid-nickel-zinc nano material is prepared by adopting high-temperature pyrolysis in an air atmosphere. The invention has the characteristics that the octadecylamine is adopted as one ligand and is also a solvent during reaction so that the raw materials are saved; the method has no need of nitrogen protection; and the conditional operation is simplified, and the preparation cost is lowered. The ferrum-acid-nickel-zinc nano material prepared by using the method has the advantages of high purity and regular particle shape, wherein the particles are both regularly approximate spheres, and the sizes of the nano particles are 6-12 nm.

Description

technical field [0001] The invention relates to a preparation method of an oil-soluble monodisperse nickel-zinc ferrite nanometer material, which is characterized by only using a single ligand and operating under air conditions. Background technique [0002] Nickel-zinc ferrite is a magnetic material with a normal spinel structure, and its general formula is AB 2 o 4 , A is a divalent ion, B is a trivalent ion. Oxygen atoms in nickel zinc ferrite form cubic close packing, Fe 3+ / Zn 2+ and Fe 3+ / Ni 2+ They occupy the tetrahedral and octahedral positions respectively; nickel-zinc ferrite is a kind of soft magnetic material, which can respond quickly under the external magnetic field; in addition, nickel-zinc ferrite has high resistivity and low eddy current loss so that it can be used as a A general-purpose high-frequency process material has been widely used. One of the important reasons why the preparation of monodisperse nickel-zinc ferrite has been paid attention t...

Claims

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Application Information

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IPC IPC(8): C01G53/00B82B3/00
Inventor 郭广生张佳顾福博
Owner BEIJING UNIV OF CHEM TECH
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