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Preparation method of Ni3C nanoparticles with electromagnetic wave absorption property

A technology of absorption properties and nanoparticles, applied in the direction of nanotechnology, nanotechnology, nanotechnology for materials and surface science, etc., to achieve the effect of short synthesis cycle and easy mass production

Active Publication Date: 2015-01-14
SHENYANG INSTITUTE OF CHEMICAL TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

One-step Synthesis of Ni Using Polyol as Solvent 3 The method of C nanoparticles has not been reported

Method used

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  • Preparation method of Ni3C nanoparticles with electromagnetic wave absorption property
  • Preparation method of Ni3C nanoparticles with electromagnetic wave absorption property
  • Preparation method of Ni3C nanoparticles with electromagnetic wave absorption property

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Example 1 At room temperature, weigh 0.58g Ni(NO3)2·6H2O, 0.05g KOH and 0.3g triphenylphosphine oxide, dissolve in a beaker of 50 mL tetraethylene glycol, stir vigorously under a magnetic stirrer , the heating temperature is 40°C, when the solute is completely dissolved, a green transparent solution is obtained. Transfer the prepared solution to a 100mL four-neck flask, connect a splash ball and an air condenser tube, and raise the temperature to 100°C under the protection of an inert gas, and keep the temperature at 100°C for 40 minutes to remove the moisture in the system; Under inert gas protection conditions, the temperature was raised at 2°C / min, heated to 310°C, and refluxed for 3 hours. After the reaction, cool down to room temperature under inert gas protection conditions; collect the powder samples in the flask, centrifuge at a speed of 10,000 r / min for 8 minutes, and disperse the product in absolute ethanol, wash with ultrasonic wave for 5 minutes, and then ca...

Embodiment 2

[0031] Example 2 At room temperature, weigh 0.30g Ni(ac)2·4H2O, 0.2g NaOH and 0.5g polyvinylpyrrolidone, dissolve in a 50 mL beaker of 1,2 butanediol, and Vigorously stir under a stirrer, and the heating temperature is 40°C. When the solute is completely dissolved, a green transparent solution is obtained. Transfer the prepared solution to a 100 mL four-neck flask, connect a splash-proof ball and an air condenser, raise the temperature to 100°C under the protection of an inert gas, and keep the temperature at 100°C for 40 minutes to remove the moisture in the system ; Under inert gas protection conditions, the temperature was raised at 2°C / min, heated to 200°C, and refluxed for 5 hours. After the reaction, cool down to room temperature under inert gas protection conditions; collect the powder samples in the flask, centrifuge at a speed of 10,000 r / min for 8 minutes, and disperse the product in absolute ethanol, wash with ultrasonic wave for 5 minutes, and then carry out Centr...

Embodiment 3

[0032]Example 3 At room temperature, weigh 0.30g NiCl2 4H2O, 0.1g NaOH and 3mL oleic acid, dissolve in a 50 mL beaker of decanediol, stir vigorously under a magnetic stirrer, and the heating temperature is 40°C, When the solute is completely dissolved, a green transparent solution is obtained. Transfer the prepared solution to a 100 mL four-neck flask, connect a splash-proof ball and an air condenser tube, raise the temperature to 100°C under the protection of an inert gas, and keep the temperature at 100°C for 40 minutes to remove the moisture in the system ; Under inert gas protection conditions, the temperature was raised at 5°C / min, heated to 250°C, and refluxed for 1 hour. After the reaction, cool down to room temperature under inert gas protection conditions; collect the powder samples in the flask, centrifuge at a speed of 10,000 r / min for 8 min, and disperse the product in absolute ethanol, wash with ultrasonic waves for 5 min, and then Centrifuge; so repeated 3 times...

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Abstract

The invention relates to a preparation method of nanoparticles, particularly a preparation method of Ni3C nanoparticles with electromagnetic wave absorption property. The preparation method comprises the following steps: in an inert gas protective atmosphere, by using nickel soluble salt as a nickel source and polyalcohol as a solvent, adding a certain alkali to regulate the pH value, and refluxing at certain temperature for some time to prepare the Ni3C magnetic nanoparticles by one step without adding any reducer. The size of the Ni3C magnetic nanoparticles can be regulated within the range of 50-1000nm; and the Ni3C nanoparticles are a soft magnetic material and have electromagnetic wave absorption property. The Ni3C magnetic nanoparticles can be synthesized on a large scale; and the method has the advantages of short synthesis period, simple facility request, accessible raw materials and no toxicity or harm.

Description

technical field [0001] The present invention relates to a kind of Ni 3 The preparation method of C nanoparticles, especially relates to a kind of Ni with electromagnetic wave absorption performance 3 C nanoparticle preparation method. Background technique [0002] Nanomagnetic transition metal carbides are potential new non-rare-earth hard magnetic materials, which have broad application prospects in the fields of microelectronic devices, micromemory, microprobes and micromechanical sensors, electromagnetic wave absorption and biomedicine. Nanomagnetic transition metal carbide Ni 3 C is an interstitial compound formed by carbon and metal, that is, smaller carbon atoms occupy the space where metal atoms are densely packed, and they tend to form non-stoichiometric interstitial compounds whose composition varies within a certain range. Ni 3 The structure of C is determined by two closely related factors: geometric and electronic. The geometrical factor depends on Hagg'...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B21/082B82Y30/00
Inventor 张雅静曹艳朱园吴静
Owner SHENYANG INSTITUTE OF CHEMICAL TECHNOLOGY