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Device for synthesizing nano particles through glow discharge and synthesis method thereof

A nanoparticle, glow discharge technology, applied in nanotechnology, nanotechnology, nanostructure manufacturing, etc., can solve the problems of unsustainable discharge time, large particle size fluctuations, low preparation efficiency, etc., and improve the size controllability. , The effect of large local thermal effect and high energy density

Inactive Publication Date: 2017-05-31
SHANGHAI LANGYAN OPTOELECTRONICS TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the above problems, the present invention provides a method for synthesizing nanoparticles based on laser-assisted glow discharge, which solves the problems of low preparation efficiency, large particle size fluctuation, uneven distribution, and uneven discharge time in the existing glow discharge plasma technology. persistent problem

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  • Device for synthesizing nano particles through glow discharge and synthesis method thereof
  • Device for synthesizing nano particles through glow discharge and synthesis method thereof
  • Device for synthesizing nano particles through glow discharge and synthesis method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0042] Use 300V, 3A direct current source, nanosecond laser, silver nano solution, graphite electrode and platinum sheet electrode pair to make titanium dioxide nano solution.

[0043] 1. Prepare the electrolyte: first pour 30ml of nano silver solution, 20ml of distilled water, and 0.1g of titanium dioxide powder into the electrolytic cell, turn on the magnetic stirring heater and rotate the stirring magnet at 1000 revolutions / min. The stirring time is 20 minutes. The concentration of the obtained nano silver solution is 1000 ppm, and the particle size of the silver nano particles is 10 nm.

[0044] 2. Make the electrode pair: After the solution is evenly stirred, put the electrode pair into the electrolytic cell. The electrode anode used here is a platinum sheet, the size of the platinum sheet is 10mm*10mm*1mm, and the cathode uses graphite electrodes and graphite rod-shaped electrodes. It is Φ5mm*10cm, and the end of the graphite electrode is ground into a Φ0.1mm fine graphite ti...

Embodiment 2

[0051] Use 800V, 5A pulse source, picosecond laser, copper nano solution, graphite electrode and copper sheet electrode pair to make titanium dioxide nano solution.

[0052] 1. Preparation of electrolyte: in figure 1 First, pour 30ml of nano-copper solution, 20ml of distilled water, and 0.1g of titanium dioxide powder into the electrolytic cell, turn on the magnetic stirring heater and rotate the stirring magnet at 1000 revolutions / min. The stirring time is 20 minutes. The concentration of the solution is 5000 ppm, and the particle size of copper nanoparticles is 10 nm.

[0053] 2. Make the electrode pair: After the solution is evenly stirred, put the electrode pair into the electrolytic cell. The electrode anode used here is a copper sheet. The copper sheet specification is 20mm*20mm*2mm. The cathode uses graphite electrodes and graphite rod electrodes. The specification is Φ5mm*10cm, and the end of the graphite electrode is ground into a Φ0.1mm fine graphite tip. Except for the 3...

Embodiment 3

[0060] Use 800V, 5A pulse source, picosecond laser, silver nano solution, graphite electrode and copper sheet electrode pair to make titanium dioxide nano solution.

[0061] 1. Preparation of electrolyte: in figure 1 First, pour 30ml of nanocopper solution, 20ml of distilled water, and 0.1g of titanium dioxide powder into the electrolytic cell, turn on the magnetic stirring heater and rotate the stirring magnet at 1000 revolutions / min. The stirring time is 20 minutes. The concentration of the solution is 1000 ppm, and the particle size of silver nanoparticles is 10 nm.

[0062] 2. Make the electrode pair: After the solution is evenly stirred, put the electrode pair into the electrolytic cell. The electrode anode used here is a copper sheet, the copper sheet specification is 20mm*20mm*2mm, the cathode uses a graphite electrode, and the graphite rod electrode specification It is Φ5mm*10cm, and the end of the graphite electrode is ground into a Φ0.1mm fine graphite tip. Except for the...

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Abstract

The invention provides a method for synthesizing nano particles through glow discharge based on laser aiding and belongs to the field of plasma electrochemical synthesis of nano materials. Plasma produced by laser on the metal anode surface of a glow discharge device, plasma produced through laser induction and plasma produced through glow discharge are utilized to produce a synergistic effect and jointly act on a precursor solution, accordingly a glow discharge phenomenon is intensified, and the problems of small plasma volume, short discharge time, insufficient electrolyte electrolysis and large nano particle product size fluctuation of an existing glow discharge technology are solved. By adopting the method for synthesizing the nano particles through glow discharge based on laser aiding, high-energy-density plasma produced through high-power laser induction and the glow discharge plasma are effectively coupled, the nano particle preparation efficiency and nano particle size controlling capability is greatly improved, and the purposes of aiding glow discharge and rapidly and effectively synthesizing the nano particles are achieved. The method can be used for rapid nano particle pre-preparation and production.

Description

Technical field [0001] The invention relates to a device for synthesizing nano particles by glow discharge and a synthesis method thereof, and belongs to the field of plasma electrochemical synthesis of nano materials. Background technique [0002] Since the 1970s, with the increasing development of materials science, people’s current material science research work has gradually extended from three-dimensional objects to two-dimensional and one-dimensional or one-dimensional fiber materials. Nano-structured materials are referred to as nanomaterials in general. Above refers to the general term of ultra-fine particle materials in the three-dimensional space with at least one dimension in the nanometer range. With the advancement of nanomaterial production technology, the general division of the technology for synthesizing nanomaterials is physical methods and chemical methods. Common physical methods such as: (1) Vacuum condensation method: This method uses vacuum evaporation, hea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B82B3/00B82Y30/00
Inventor 曾和平冯光
Owner SHANGHAI LANGYAN OPTOELECTRONICS TECH
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