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A ni that has electromagnetic wave absorption properties 3 The preparation method of c nanoparticles

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: 2017-01-04
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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  • A ni that has electromagnetic wave absorption properties <sub>3</sub> The preparation method of c nanoparticles
  • A ni that has electromagnetic wave absorption properties <sub>3</sub> The preparation method of c nanoparticles
  • A ni that has electromagnetic wave absorption properties <sub>3</sub> The preparation method of c nanoparticles

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 50mL beaker of decanediol, stir vigorously under a magnetic stirrer, the heating temperature is 40 ° C, when After 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 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 minutes, and disperse the product in absolute ethanol, wash with ultrasonic wave for 5 minutes, and then carry out Centrifuge; so r...

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Abstract

A preparation method of Ni3C nanoparticles with electromagnetic wave absorption performance relates to a preparation method of nanoparticles. The specific preparation method of Ni3C magnetic nanoparticles is as follows: under the condition of inert gas protection, the soluble salt of nickel is used as the nickel source, and the polyhydric alcohol is Solvent, add a certain amount of alkali to adjust the pH value, reflux at a certain temperature for a certain period of time, without adding a reducing agent, and Ni3C magnetic nanoparticles can be prepared in one step. The size of the Ni3C magnetic nanoparticles can be adjusted between 50-1000 nm, which is a soft magnetic material and has good electromagnetic wave absorption performance. In the invention, the Ni3C magnetic nano particles can be synthesized on a large scale, the synthesis period is short, the equipment requirements are simple, the raw materials are easily available, non-toxic and harmless.

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 factors and electronic factors. The geometrical factor depe...

Claims

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Application Information

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