Process for preparing nickel-zine ferrite (NixZn1-xFe2O4) magnetic nano powder by alcohol-heating method

A technology of nickel-zinc ferrite and magnetic nanometer, which is applied in the field of preparation of nickel-zinc ferrite magnetic nano-powder by alcohol thermal method, to achieve the effect of pure crystal phase, not easy to agglomerate, and simple preparation process

Inactive Publication Date: 2009-07-08
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Ni has not been prepared by alcohol thermal method

Method used

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  • Process for preparing nickel-zine ferrite (NixZn1-xFe2O4) magnetic nano powder by alcohol-heating method
  • Process for preparing nickel-zine ferrite (NixZn1-xFe2O4) magnetic nano powder by alcohol-heating method
  • Process for preparing nickel-zine ferrite (NixZn1-xFe2O4) magnetic nano powder by alcohol-heating method

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Experimental program
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Effect test

Embodiment 1

[0016] Weigh 1.351g of ferric chloride, 0.145g of zinc nitrate hexahydrate, and 0.595g of zinc nitrate hexahydrate into a three-necked flask, then add 50ml of ethylene glycol, and ultrasonically disperse for 60 minutes. After ultrasonic dispersion, add 3.6g of anhydrous sodium acetate, 1ml of polyethylene glycol 200, and mechanically stir for 30 minutes at a rotation speed of 500 rpm. After completely dissolving, pour the above solution into the reaction kettle and heat up To 220°C, react for 9h. At the end of the reaction, the product was collected with a magnet, washed with deionized water, and then vacuum-dried at 40 °C for 24 h to obtain Ni x Zn 1-x Fe 2 o 4 Nano powder. figure 1 It is the X-ray diffraction pattern of the powder synthesized in this embodiment, and the diffraction peaks in the figure show that the nanopowder is Ni x Zn 1-x Fe 2 o 4 . figure 2 It is a transmission electron microscope photo of the synthesized powder, it can be seen that: Ni x Zn ...

Embodiment 2

[0018] Weigh 1.351g of ferric chloride, 0.297g of zinc nitrate hexahydrate, and 0.436g of nickel nitrate hexahydrate into a three-necked flask, then add 50ml of ethylene glycol, and ultrasonically disperse for 30 minutes. After ultrasonic dispersion, add 3.6g of anhydrous sodium acetate, 0.8ml of polyethylene glycol 400, and mechanically stir for 60 minutes at a rotation speed of 500 rpm. After completely dissolving, pour the above solution into the reaction kettle. Raise the temperature to 180°C and react for 12h. At the end of the reaction, the product was collected with a magnet, washed with deionized water, and then vacuum-dried at 80 °C for 15 h to obtain Ni x Zn 1-x Fe 2 o 4 Nano powder. The XRD test results show that the nanopowder is Ni x Zn 1-x Fe 2 o 4 . Transmission electron microscope observation showed that: Ni x Zn 1-x Fe 2 o 4 The particle size of the nanospheres is 50-150nm, and the Ni in the nanopowder x Zn 1-x Fe 2 o 4 Nanospheres have multip...

Embodiment 3

[0020]Weigh 1.351g of ferric chloride, 0.372g of zinc nitrate hexahydrate, and 0.363g of nickel nitrate hexahydrate into a three-necked flask, then add 50ml of ethylene glycol, and ultrasonically disperse for 45 minutes. After the ultrasonic dispersion is completed, add 3.6g of anhydrous sodium acetate, 0.6ml of polyethylene glycol 600, and mechanically stir for 30min at a rotation speed of 500 rpm. After the solution is completely dissolved, pour the above solution into the reaction kettle , heated up to 200°C, and reacted for 10h. At the end of the reaction, the product was collected with a magnet, washed with deionized water, and then vacuum-dried at 70 °C for 18 h to obtain Ni x Zn 1-x Fe 2 o 4 Nano powder. The XRD test results show that the nanopowder is Ni x Zn 1-x Fe 2 o 4 . Transmission electron microscope observation showed that: Ni x Zn 1-x Fe 2 o 4 The particle size of the nanospheres is 50-150nm, and the Ni in the nanopowder x Zn 1-x Fe 2 o 4 Nanos...

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Abstract

The invention relates to a method for preparing nickel zinc ferrite NixZn1-xFe2O4 magnetic nanometer powder through an alcohol heating method. The method comprises the following steps: weighing iron salt, zinc salt and nickel salt and dissolving the iron salt, zinc salt and nickel salt in ethylene glycol at a room temperature, carrying out the ultrasonic dispersion, then adding anhydrous sodium acetate and a polyethylene glycol dispersant, carrying out the mechanical mixing, adding the mixture into a reaction kettle after complete dissolution, cooling down the mixture to the room temperature after the complete reaction, collecting the product through a magnet, washing the product through deionized water and drying the product to obtain the NixZn1-xFe2O4 magnetic nanometer powder. The preparation method has a simple process and is easy for the industrialized production. The NixZn1-xFe2O4 magnetic nanometer powder prepared through the method has a pure crystal phase, good dispersilbility, uneasy agglomeration and higher magnetization; and the magnetic material has the wide application prospect in the industrial and high-tech field due to the unique magnetic performance of the material.

Description

technical field [0001] The invention belongs to nickel zinc ferrite (Ni x Zn 1-x Fe 2 o 4 ) field of preparation of magnetic nanopowders, in particular relate to the preparation of nickel-zinc ferrite (Ni x Zn 1-x Fe 2 o 4 ) method of magnetic nano powder. Background technique [0002] Ni x Zn 1-x Fe 2 o 4 It is an important magnetic material. Ni x Zn 1-x Fe 2 o 4 It is a soft magnetic ferrite material with a spinel structure. The synthesis and performance research of nickel-zinc ferrite nanocrystals has increasingly become a hot spot in the research field. This is because spinel-type nickel-zinc ferrite is a soft ferrite material. Magnetic materials, with high resistivity and high saturation magnetization, are widely used in high-speed pointer read-write heads, lightning rods, magnetic resonance devices and electromagnetic wave absorbing materials. Zahi S. etc. reported on MaterialsChemistry and Physics 106 (2007) 452-456 to make the same nickel-zinc ferrit...

Claims

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Application Information

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IPC IPC(8): C04B35/30C04B35/26C04B35/622
Inventor 李耀刚闫伟张燕玲王宏志张青红朱美芳
Owner DONGHUA UNIV
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