Preparation method of nickel nanoparticles

A technology of nickel nanoparticles and nickel acetylacetonate, which is applied in the field of green and environmentally friendly synthesis of nickel nanoparticles, can solve problems such as ecological environment damage and environmental pollution, and achieve the effects of simple production process and uniform size

Inactive Publication Date: 2015-09-23
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Some toxic organic solvents are often used in the corresponding solvothermal method, which will inevitably cause environmental pollution and damage to the ecological environment during use. Therefore, the research on the method of synthesizing nickel nanoparticles with green environmental protection has important practical significance

Method used

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  • Preparation method of nickel nanoparticles
  • Preparation method of nickel nanoparticles
  • Preparation method of nickel nanoparticles

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Example 1: Synthesis of nickel nanoparticles

[0024] Add 5ml olive oil and 0.4mmol nickel acetylacetonate to a 50ml three-necked flask, connect to the nitrogen protection of the Schilek system, and use a heating mantle to control the heating under the state of magnetic stirring, first at a rate of 10℃ per minute to heat up Keep it at 100℃ for 2 minutes, then increase the temperature to 120℃, react for 20 minutes to fully dissolve the nickel acetylacetonate; then increase the temperature to 280℃ at a heating rate of 20℃ per minute, and react for 15 minutes; then nitrogen protection Lower the temperature to 70~80℃, wash the sample with n-butanol and n-hexane 4 to 5 times (the ratio of reaction liquid to n-hexane and n-butanol is 1:1:2), and separate the product with a centrifuge to obtain a black powder , Disperse it in n-hexane for storage.

[0025] The XRD pattern of the sample prepared in this example is as follows figure 1 , See the TEM photo figure 2 ,by figure 1 The X...

Embodiment 2

[0026] Example 2: Synthesis of nickel nanoparticles by reducing the reaction time

[0027] Add 5ml olive oil and 0.4mmol nickel acetylacetonate to a 50ml three-necked flask, connect to the nitrogen protection of the Schilek system, and use a heating mantle to control the heating under the state of magnetic stirring, first at a rate of 10℃ per minute to heat up Keep it at 100℃ for 2 minutes, then increase the temperature to 120℃, react for 20 minutes to fully dissolve the nickel acetylacetonate; then increase the temperature to 280℃ at a heating rate of 20℃ per minute, and react for 10 minutes; then nitrogen protection Lower the temperature to 70~80℃, wash the sample with n-butanol and n-hexane 4 to 5 times (the ratio of reaction liquid to n-hexane and n-butanol is 1:1:2), and separate the product with a centrifuge to obtain a black powder , Disperse it in n-hexane for storage.

[0028] The XRD pattern of the sample prepared in this example is as follows image 3 The product of Exa...

Embodiment 3

[0029] Example 3: Synthesis of nickel nanoparticles by increasing the reaction time

[0030] Add 5ml olive oil and 0.4mmol nickel acetylacetonate to a 50ml three-necked flask, connect to the nitrogen protection of the Schilek system, and use a heating mantle to control the heating under the state of magnetic stirring, first at a rate of 10℃ per minute to heat up Keep it at 100℃ for 2 minutes, then increase the temperature to 120℃, react for 20 minutes to fully dissolve the nickel acetylacetonate; then increase the temperature to 280℃ at a heating rate of 20℃ per minute, and react for 30 minutes; then nitrogen protection Lower the temperature to 70~80℃, wash the sample with n-butanol and n-hexane 4 to 5 times (the ratio of reaction liquid to n-hexane and n-butanol is 1:1:2), and separate the product with a centrifuge to obtain a black powder , Disperse it in n-hexane for storage.

[0031] The XRD pattern of the sample prepared in this example is as follows Figure 4 The product of ...

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Abstract

The invention belongs to the technical field of nanometer material synthesis, and particularly relates to a green and environment-friendly method for synthesizing nickel nanoparticles. The method includes the steps of adding acetylacetone nickel to olive oil, conducting heating to the temperature of 100 DEG C under the protection of nitrogen, keeping the temperature for 2 minutes, raising the temperature to 120 DEG C, keeping the temperature for 20 minutes, then raising the temperature to 260 DEG C to 280 DEG C, keeping the temperature for 10 minutes to 30 minutes, decreasing the temperature to 70 DEG C to 80 DEG C under the protection of nitrogen, cleaning obtained reaction liquid with n-butyl alcohol and normal hexane, and centrifugally separating out a product to obtain the nickel nanoparticles. The nickel nanoparticles prepared through a solvent thermal method are uniform in size, the production process is simple, the whole process is green and environmentally friendly, and no pollution can be caused to the environment.

Description

Technical field [0001] The invention belongs to the technical field of nano material synthesis, and particularly relates to a green and environmentally friendly method for synthesizing nickel nanoparticles. Background technique [0002] For a long time, magnetic nanomaterials have received widespread attention due to their broad application prospects in nuclear magnetic resonance imaging, magnetic recording, electronic nanodevices, drug delivery, catalysts, absorbing materials, and high-density information storage. Nanoparticles have unique properties such as strong ferromagnetism, high surface activity, no microporous penetration, large specific surface area, great surface effect and volume effect, and exhibit special properties that are not available in corresponding bulk materials. In recent years, due to the increasing energy requirements in the world, there is an urgent need to develop and explore battery technologies with excellent storage capacity and stable performance. N...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F9/24
Inventor 隋永明刘闯刘欣美邹勃
Owner JILIN UNIV
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