Production method for a metal nanostructure using an ionic liquid

a technology of metal nanostructure and ionic liquid, which is applied in the field of metal nanostructure production method, can solve the problems of difficult production of metal nanostructures

Inactive Publication Date: 2012-02-09
SUH KWANG SUCK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0008]Accordingly, the present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a method of freely and uniformly forming various shapes of metal nanostructures using an ionic liquid. According to the method, various shapes of metal nanostructures, such as a wire shape, a cubic shape, an octahedral shape and the like, are formed in a polyol reduction reaction in which metal salts are used as precursors.

Problems solved by technology

However, the metal nanostructures formed using the polyol reduction method are problematic in that various shapes are mixed although they chiefly have a wire shape, and in that it is difficult to produce the metal nanostructures such that their shape is reproducible according to reaction conditions.

Method used

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  • Production method for a metal nanostructure using an ionic liquid
  • Production method for a metal nanostructure using an ionic liquid
  • Production method for a metal nanostructure using an ionic liquid

Examples

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example 1

[0037]50 mL of a solution in which silver nitrate (AgNO3) is dissolved in ethyleneglycol to a concentration of 0.1 M was mixed with 50 mL of a solution in which 1-butyl-3-methylimidazolium methyl sulfate is dissolved in ethyleneglycol to a concentration of 0.15 M in a round-bottom flask to form a mixed solution. Subsequently, the mixed solution was stirred and reacted at 160° C. for 60 minutes, and was then cooled to room temperature. Subsequently, the cooled mixed solution was filtered with a filter having a pore size of 1 μm, and was then observed with an electron scanning microscope. As a result, it was found that metal nanowires were formed, as shown in FIG. 1. It was observed that the metal nanowires had a diameter of about 220 nm and a length of about 7 μm.

example 2

[0038]10 mL of a solution in which silver nitrate (AgNO3) is dissolved in 1,3-propyleneglycol to a concentration of 0.2 M was mixed with 10 mL of a solution in which 1-ethyl-3-methylimidazolium methyl sulfate is dissolved in 1,3-propyleneglycol to a concentration of 0.3 M in a round-bottom flask to form a mixed solution. Subsequently, the mixed solution was stirred and reacted at 100° C. for about 30 minutes, and was then cooled to room temperature. Subsequently, the cooled mixed solution was filtered with a filter having a pore size of 1 μm, and was then observed with an electron scanning microscope. As a result, it was found that metal nanowires having a diameter of about 180 nm and a length of about 10 μm were formed.

example 3

[0039]10 mL of a solution in which silver nitrate (AgNO3) is dissolved in 1,2-propyleneglycol to a concentration of 0.2 M was mixed with 10 mL of a solution in which 1-ethyl-3-methylimidazolium methyl sulfate is dissolved in 1,3-propyleneglycol to a concentration of 0.3 M in a round-bottom flask to form a first mixed solution, and then sodium dodecyl sulfate was added to the first mixed solution in an amount of 1% of the silver nitrate (AgNO3) to form a second mixed solution. Subsequently, the second mixed solution was stirred and reacted at 100° C. for about 30 minutes, and was then cooled to room temperature. Subsequently, the cooled second mixed solution was filtered with a filter having a pore size of 1 μm, and was then observed with an electron scanning microscope. As a result, it was found that metal nanowires having a diameter of about 80 nm and a length of about 10 μm were formed.

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Abstract

The present invention provides a method of forming metal nanostructures, and, more particularly, a method of uniformly forming various shapes of nanostructures, such as cubic or octahedral nanoparticles, nanowires and the like, using ionic liquid in a polyol reduction reaction in which metal salts are used as precursors.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This application is a National Phase of PCT International Patent Application No. PCT / KR2010 / 002127, filed Apr. 7, 2010, and Korean Patent Application No. 10-2009-0030599, filed Apr. 8, 2009, in the Korean Intellectual Property Office, the disclosures of which are incorporated herein by reference.BACKGROUND OF THE INVENTION[0002]1. Field of the Invention[0003]The present invention relates to a method of forming a metal nanostructure, and, more particularly, to a method of uniformly forming various shapes of nanostructures, such as cubic or octahedral nanoparticles, nanowires and the like, using an ionic liquid in a polyol reduction reaction in which metal salts are used as precursors.[0004]2. Description of the Related Art[0005]Recently, research into the synthesis of metal nanoparticles has actively been made in order that they may be applied to flat panel displays, touch panels, solar cells, etc. Since these metal nanoparticles can be pr...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): B22F1/00B22F9/18
CPCB22F9/24B22F2009/245B22F2999/00B22F1/0025B22F2001/0037B22F2301/25B22F2301/35B22F2301/15B22F2301/30B22F1/0547B22F1/0553B82B1/00B82B3/00
Inventor SUH, KWANG-SUCKKIM, JONG EUNKIM, TAE YOUNG
Owner SUH KWANG SUCK
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