Preparation method of magnetic cobalt nanometer material

A magnetic nanometer and cobalt nanotechnology, which is applied in the field of preparing stable metal cobalt nanomaterials and regulating the morphology of nanomaterials, can solve the problems of reducing the magnetism of cobalt nanomaterials, and achieve the effects of industrial production, convenient raw materials, and less production equipment

Inactive Publication Date: 2013-02-13
YANGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these methods reduce the magnetic properties of cobalt nanomaterials

Method used

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  • Preparation method of magnetic cobalt nanometer material
  • Preparation method of magnetic cobalt nanometer material
  • Preparation method of magnetic cobalt nanometer material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] 1. Moorbi by cobalt nitrate and 摩 is 1: 6, which are called 1.4545 g of trifle with six crystal water, respectively, and 1.500 g of a crystalline water, which is dissolved in 70 ml of propylene glycol (propylene glycol (propylene trifleholThe amount of dosage is fully dissolved in cobalt nitrate, pyrine, and anion surface active agent).Add the role of 原 to the reducing agent, and at the same time, the N atom can be equipped with CO, which affects the structure and appearance of the product.As a solvents, it uses its high viscosity to affect the movement of ions and control the agglomeration of the product.

[0025] 2. Heat the above solution to boiling and return to 1.5 hours.

[0026] 3. Separate the above solution with a magnetic separation method to obtain magnetic particles.Wash with water -free ethanol and acetone several times to dry.

[0027] like figure 1 As well as 2 And 3 shown.The structure and phase identification of the product adopt the Bruker Axs D8 Advance X...

Embodiment 2

[0033] 1. Moorbi by cobalt nitrate and 摩 is 1: 6, respectively, respectively, respectively.Sodium 0.0308 g, dissolved in 70 ml of propylene glycol (the amount of propylene glycol is fully dissolved in cobalt nitrate, pyrine, and anion surface active agent).Add the role of 原 to the reducing agent, and at the same time, the N atom can be equipped with CO, which affects the structure and appearance of the product.As a solvents, it uses its high viscosity to affect the movement of ions and control the agglomeration of the product.(2 -ethyl) sodium amber sodium sodium sulfonate is a double -tailed anion surfactant with strong surface activity.It can be adsorbed to the surface of the solid particles, affecting its growth and gathering.

[0034] 2. Heat the above solution to boiling and return to 1.5 hours.

[0035] 3. Separate the above solution with a magnetic separation method to obtain magnetic particles.Wash with water -free ethanol and acetone several times to dry.

[0036] like Fi...

Embodiment 3

[0042] 1. Moorbi by cobalt nitrate and 摩 is 1: 6, respectively, respectively, respectively.Sodium 0.1540 g, dissolved in 70 ml of propylene glycol (the amount of propylene glycol is fully dissolved in cobalt nitrate, pyrine, and anion surface active agent).Add the role of 原 to the reducing agent, and at the same time, the N atom can be equipped with CO, which affects the structure and appearance of the product.As a solvents, it uses its high viscosity to affect the movement of ions and control the agglomeration of the product.(2 -ethyl) sodium amber sodium sodium sulfonate is a double -tailed anion surfactant with strong surface activity.It can be adsorbed to the surface of the solid particles, affecting its growth and gathering.

[0043] 2. Heat the above solution to boiling and return to 1.5 hours.

[0044] 3. Separate the above solution with a magnetic separation method to obtain magnetic particles.Wash with water -free ethanol and acetone several times to dry.

[0045] like Fi...

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Abstract

The invention discloses a preparation method of a magnetic cobalt nanometer material. The preparation method is characterized by comprising the following steps: (1) preparing glycerol solution of cobalt nitrate, hydrazine and anionic surfactant, wherein the weight percentage of the cobalt nitrate, the hydrazine and the anionic surfactant is 46-49.5% of the cobalt nitrate, 47-51% of the hydrazine and 0-5.5% of the anionic surfactant; (2) heating the solution prepared in the step (1) until boiling under a stirring condition, and backflowing for 1.5 hours; and (3) magnetically separating the solution which is subjected to the heating and the backflowing processes, and obtaining the magnetic cobalt nanometer material. A one-step method is used for preparing the strong magnetic response cobalt nanometer material of which the surface is coated with amorphous cobalt, so that the preparation method of the magnetic cobalt nanometer material requires less production equipment, is simple in operation steps, low in cost and suitable for industrial production. The cobalt nitrate which contains six crystal water is used as a raw material, so that the raw material is convenient to obtain and contributes to the industrial production.

Description

Technical field [0001] The present invention involves a preparation method of magnetic cobalt -nano -material, which specializes in a method to prepare stable metal cobalt nanomaterials and regulate the appearance of nanomaterials. Background technique [0002] In recent years, with the development of nanomaterials and nanotechnology, magnetic nanomaterials have attracted widespread attention from people's special properties that are different from conventional nanomaterials and body phase magnetic materials, and have shown broad application prospects in many fields.Compared with ordinary iron magnetic materials, the temperature of metal cobalt is as high as 1403 K, so it has high temperature stability. [0003] Prior to the present invention, due to the chemical instability of metal cobalt, the chemical liverants of nano -cobalt materials were stronger, so its application was greatly restricted.For people, people often use the surface of the surface of the magnetic cobalt nanoma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F9/24
Inventor 南照东杨波
Owner YANGZHOU UNIV
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