Method for controllably preparing FeNi3 micro-nano materials in various shapes

A technology of micro-nano and morphology, which is applied in the field of controllable preparation of FeNi3 micro-nano materials with various shapes, can solve the problems of unsuitability for large-scale production, expensive equipment and instruments, and cumbersome preparation process, so as to save raw material costs and selectivity. High and simple preparation process

Active Publication Date: 2013-04-10
ZHONGBEI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] FeNi with various morphologies have been synthesized 3 The literature reports on magnetic alloy micro-nano materials, such as nanoparticles, chain-like micro-wires, micro-flowers, flake nanoparticles, etc., mostly use surfactants or external magnetic field-assisted methods, which have complex synthesis processes, cumbersome preparation processes, and are not suitable for large-scale production. Large-scale production, sometimes requiring expensive equipment and instrumentation defects
[0004] The existing technology is still unable to controlly prepare FeNi with various morphologies by one method 3 Micro-Nano Materials

Method used

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  • Method for controllably preparing FeNi3 micro-nano materials in various shapes
  • Method for controllably preparing FeNi3 micro-nano materials in various shapes
  • Method for controllably preparing FeNi3 micro-nano materials in various shapes

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Effect test

Embodiment 1

[0028] A controllable preparation of FeNi with various morphologies 3 The method for micro-nano material, comprises the following steps:

[0029] (1) Using ferric chloride hexahydrate as iron source and nickel dichloride hexahydrate as nickel source, prepare Fe 3+ The concentration is 0.01 mol / L, Ni 2+ A solution with a concentration of 0.03mol / L. Pour 37 mL of the prepared solution into another container and stir;

[0030] (2) Add 0.1 g of solid sodium hydroxide to the solution prepared in step (1), and stir thoroughly;

[0031] (3) Add 3 mL of hydrazine hydrate (80%, volume percentage) dropwise into the solution obtained in step (2), and stir thoroughly;

[0032] (4) Transfer the solution obtained in step (3) to a 50 mL reactor, seal it, and react at 170°C for 24 h;

[0033] (5) After the reaction, the product was separated with a magnet, washed five times with deionized water and absolute ethanol, and then dried in air at room temperature.

[0034] The dried samples w...

Embodiment 2

[0036] A controllable preparation of FeNi with various morphologies 3 The method for micro-nano material, comprises the following steps:

[0037] (1) Using ferric chloride hexahydrate as iron source and nickel dichloride hexahydrate as nickel source, prepare Fe 3+ The concentration is 0.01 mol / L, Ni 2+ For a solution with a concentration of 0.03mol / L, pour 38 mL of the prepared solution into another container and stir;

[0038] (2) Add 0.3 g of sodium hydroxide solid to the solution prepared in step (1), and stir thoroughly;

[0039] (3) Add 2 mL of hydrazine hydrate (80%, volume percentage) dropwise into the solution obtained in step (2), and stir thoroughly;

[0040] (4) Transfer the solution obtained in step (3) to a 50 mL reactor, seal it, and react at 170°C for 2 h;

[0041] (5) After the reaction, the product was separated with a magnet, washed five times with deionized water and absolute ethanol, and then dried in air at room temperature.

[0042] The dried samples...

Embodiment 3

[0044] A controllable preparation of FeNi with various morphologies 3 The method for micro-nano material, comprises the following steps:

[0045] (1) Using ferric chloride hexahydrate as iron source and nickel dichloride hexahydrate as nickel source, prepare Fe 3+ The concentration is 0.005 mol / L, Ni 2+ For a solution with a concentration of 0.015mol / L, pour 39 mL of the prepared solution into another container and stir;

[0046] (2) Add 0.1 g of solid sodium hydroxide to the solution prepared in step (1), and stir thoroughly;

[0047] (3) Add 1 mL of hydrazine hydrate (80%, volume percentage) dropwise into the solution obtained in step (2), and stir thoroughly;

[0048] (4) Transfer the solution obtained in step (3) to a 50 mL reactor, seal it, and react at 150 °C for 10 h;

[0049] (5) After the reaction, the product was separated with a magnet, washed five times with deionized water and absolute ethanol, and then dried in air at room temperature.

[0050] The dried sam...

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Abstract

The invention discloses a method for controllably preparing FeNi3 micro-nano materials in various shapes, which relates to magnetic alloy FeNi3 micro-nano materials. The method comprises the following steps that ferric chloride hexahydrate and nickel dichloride hexahydrate are dissolved in deionized water, so as to obtain a solution with the Fe<3+> concentration of 0.005 to 0.03 mol / L and the Ni<2+> concentration of 0.015 to 0.09 mol / L, and the mole ratio of the ferric chloride hexahydrate to the nickel dichloride hexahydrate is controlled to be 1:3; then sodium hydroxide is added to full stir; then hydrazine hydrate is dropwise added to stir; the mixture is moved to a reaction kettle to be sealed, and reaction is performed at 120 to 200 DEG C for 0.5 to 24 hours; and a magnet is used for separating products, and the products are respectively washed with deionized water and absolute ethyl alcohol and then dried. According to the method, any template or external magnetic field is not used for assistance, the products in various shapes can be optionally synthesized with one step, and the method has the advantages of economy, environmental friendliness, rich product structure and shape, high selectivity and good repetitiveness.

Description

technical field [0001] The invention relates to magnetic alloy FeNi 3 Micro-nano materials, specifically related to a controllable preparation of various shapes of FeNi 3 approach to micro-nanomaterials. Background technique [0002] The physical and chemical properties of magnetic alloy micro-nano materials are closely related to the size and shape of the material. FeNi 3 Magnetic alloy micro-nano materials have the characteristics of soft magnetic materials such as high saturation magnetization, high Curie temperature, high magnetic permeability and low magnetic anisotropy constant, and are widely used in high-density magnetic recording, magnetic fluid, biomedicine, sensors, catalysis, pigments , electromagnetic shielding, radar wave absorption and other fields have shown broad application prospects. [0003] FeNi with various morphologies have been synthesized 3 The literature reports on magnetic alloy micro-nano materials, such as nanoparticles, chain-like micro-wir...

Claims

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Application Information

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IPC IPC(8): B22F9/24
Inventor 刘亚青陈慧玉赵贵哲柳学义
Owner ZHONGBEI UNIV
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