Method for producing nano particle with lamination structure

A nanoparticle and layered structure technology, applied in the direction of nanotechnology, nanotechnology, nanostructure manufacturing, etc., can solve the problems of increased manufacturing costs and restrictions on the insertion of guest materials

Inactive Publication Date: 2009-07-01
SAMSUNG ELECTRO MECHANICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the insertion of guest materials between the layers is limited in terms of orientation
Moreover, since the preparation process is mainly carried out under vacuum or high temperature, expensive equipment must be used
Therefore, the manufacturing cost increases

Method used

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  • Method for producing nano particle with lamination structure
  • Method for producing nano particle with lamination structure
  • Method for producing nano particle with lamination structure

Examples

Experimental program
Comparison scheme
Effect test

no. 1 approach

[0073] Preparation of TiS 2 nanoparticle approach

[0074] First, 90 μl of TiCl 4 and 3 g of refined oleylamine were put into a flask, and then heated at a temperature of 300° C. in an argon atmosphere. At this temperature, 0.12 ml of carbon disulfide was mixed. Then, the liquid mixture was heated at a temperature of 300°C.

[0075] After the liquid mixture was maintained at 300° C. for 30 minutes, the liquid mixture was cooled to normal temperature, and then 20 ml of acetone was added to precipitate layered structure nanoparticles. The precipitated layer-structured nanoparticles were collected using a centrifugal separator.

[0076] Then, 20 μl containing the collected TiS 2 The solution of nanoparticles was dropped onto a TEM grid coated with a carbon grid and dried for about 20 minutes. Then, observation was performed by a transmission electron microscope (EF-TEM) (Zeiss, accelerating voltage: 100 kV). figure 2 Observations are shown.

[0077] like figure 2...

no. 2 approach

[0088] Preparation of ZrS 2 nanoparticle approach

[0089] Prepare ZrS by the same method as the first embodiment 2 nanoparticles. In this embodiment, using ZrCl 4 instead of TiCl 4 in order to produce ZrS 2 nanoparticles.

[0090] Figure 7 shows that ZrS prepared in such a way 2 TEM observation of nanoparticles.

no. 3 approach

[0092] Prepare WS 2 nanoparticle approach

[0093] WS is prepared by the same method as the first embodiment 2 nanoparticles. In this embodiment, using WCl 4 instead of TiCl 4 in order to generate WS 2 nanoparticles.

[0094] Figure 8 shows that WS prepared in such a way 2 TEM observation of nanoparticles.

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Abstract

The present invention provides a method for preparing layer-structure nanometer particles, wherein the method comprises the following steps: preparing a liquid mixture through adding metal halide precursor and sulfur precursor into the organic solvent comprising amine; preparing the layer-structure metallic sulfide nanometer particles through heating the liquid mixture in a predetermined temperature; and separating out the metallic sulfide nanometer particles from the liquid mixture.

Description

[0001] Cross References to Related Applications [0002] This application claims priority from Korean Patent Application No. 10-2007-0137995 filed with the Korean Intellectual Property Office on December 26, 2007, the contents of which are incorporated herein by reference. technical field [0003] The present invention relates to a method for preparing nanoparticle (nanoparticle) of layered structure. Background technique [0004] Typical methods of preparing metal nanoparticles are classified into chemical production methods, mechanical production methods, and electrical production methods. In the mechanical production method using mechanical force, it is difficult to prepare high-purity particles due to impurities mixed in during processing. Therefore, it is impossible to prepare uniform particles of nanometer size. [0005] In the electric production method using electrolysis, the production time is extended, and the concentration is so low that the efficiency is lowere...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B17/20B82B3/00C01G23/00C01G15/00C01G39/06C01G41/00C01G25/00C01G33/00C01G19/00C01G35/00
CPCB01J35/0013H01M8/1016B01J37/08B01J35/002B01J37/20H01M8/1011Y02E60/521B01J27/047H01M2300/0082Y02E60/324B01J27/04C01B3/0084Y02E60/32Y02E60/50Y02P70/50B82B3/00B82Y40/00
Inventor 徐正旭南孝升
Owner SAMSUNG ELECTRO MECHANICS CO LTD
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