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A laser method for rapid preparation of metal nanoporous materials

A technology for metal nano-porous materials, which is applied in the preparation of two-dimensional or three-dimensional nano-porous materials, and in the field of rapid preparation of metal nano-porous materials by laser, can solve the problems of inability to realize large-scale industrial production, long time consumption and high cost, and achieve production speed Fast, controllable and repeatable results

Active Publication Date: 2020-07-10
JIANGXI ZHAO CHI SEMICON CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to propose a method for rapid preparation of metal nanoporous materials by laser to solve the problems of high cost and long time consumption in the preparation of existing nanoporous materials, which cannot realize large-scale industrial production

Method used

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  • A laser method for rapid preparation of metal nanoporous materials
  • A laser method for rapid preparation of metal nanoporous materials
  • A laser method for rapid preparation of metal nanoporous materials

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] Disperse 800 ul of silver nanowires with a concentration of 10 mg / ml into a 4 ml centrifuge tube, and fill the centrifuge tube to the 4 ml scale with deionized water. Put the centrifuge tube into a 100W ultrasonic cleaner and ultrasonicate for 1.5min. Take out the centrifuge tube and put it into a beaker at 65°C, and heat it in a water bath for 3h. Then put the centrifuge tube into the centrifuge and centrifuge for 4min at a speed of 4000r / min. After centrifugation, take out 3.5ml of supernatant with a straw, and repeat the process of adding deionized water-ultrasonication-heating-centrifugation 3 times.

[0057] Spin-coat the nano-slurry on the metal aluminum sheet with a flat surface. After the deionized water is completely volatilized, place the glass sheet on the metal aluminum sheet to press the nano-material.

[0058] A femtosecond laser with a wavelength of 1030nm and a power of 44mW is used to scan at a speed of 2000mm / s to prepare a nano-silver porous materia...

Embodiment 2

[0060] Disperse 400ul of silver nanowires with a concentration of 10mg / ml and 1000ul of silver nanoparticles with a concentration of 0.1mg / ml into a 4ml centrifuge tube, and fill the centrifuge tube to the 4ml scale with de-alcohol. Put the centrifuge tube into a 100W ultrasonic cleaner and ultrasonicate for 50s. Take out the centrifuge tube and put it into a beaker at 60°C, and heat it in a water bath for 2h. Then put the centrifuge tube into the centrifuge and centrifuge for 5min at a speed of 12000r / min. After centrifugation, take out 3.5ml of supernatant with a straw, and repeat the process of adding deionized water-ultrasonication-heating-centrifugation 3 times.

[0061] Spin-coat the nano-slurry on the metal aluminum sheet with a flat surface. After the deionized water is completely volatilized, place the glass sheet on the metal aluminum sheet to press the nano-material.

[0062] A femtosecond laser with a wavelength of 1030nm and a power of 44mW is used to scan at a ...

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Abstract

The invention discloses a method for quickly preparing metal nanoporous materials by laser. The nanomaterials are dispersed into volatile solvents, and the dispersant on the surface of the nanomaterials is removed through ultrasonic, heating and centrifugal treatment to obtain high-concentration nanoscale slurry. The nano slurry is spin-coated on the substrate, and after the solvent is completely volatilized, a light-transmitting sheet is placed on the coating layer of the substrate. The laser passes through the light-transmitting sheet and scans the nanomaterial along the set path to obtain metal nanoporous materials. The method is suitable for zero-dimensional or one-dimensional metal nanomaterials that are easily dispersed in solvents, and has the advantages of good repeatability, strong controllability and fast production speed.

Description

technical field [0001] The invention belongs to the technical field of preparation of nano-functional structures / materials, and relates to a method for preparing two-dimensional or three-dimensional nano-porous materials. Specifically, the invention relates to a method for rapidly preparing metal nano-porous materials by laser. Background technique [0002] Nanoporous materials are a class of solid materials with rich microstructures, which are widely used in the fields of adsorption separation, analysis, catalysis, energy storage, and biology. The preparation method of large-area porous nanomaterials is of great significance to the development of science and technology. Today's researchers have invented many preparation methods of nanoporous materials, such as electrochemical synthesis, hydrothermal method, hot pressing method, microwave synthesis method, etc., but these methods have certain defects. For example, electrochemical synthesis is an expensive and environmentall...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22F3/11B33Y10/00
CPCB22F3/11B33Y10/00B22F2999/00B22F10/28Y02P10/25
Inventor 周圣军赵强万辉雷宇
Owner JIANGXI ZHAO CHI SEMICON CO LTD