# US 10,479,894 B2 · Solution for fabricating nano particles

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- Number: US 10,479,894 B2
- Document ID: US10479894B2
- Status: Granted
- Kind: B2
- Application number: 15/666,007
- Filed: 2017-08-01
- Published: 2017-11-23
- Granted: 2019-11-19
- Earliest claimed: 2014-12-03
- Assignees: SK Innovation Co., Ltd.
- Applicants: SK Innovation Co., Ltd.
- Inventors: Jun-Hyung Kim
- Web page: https://patentgrep.com/patent/US10479894B2

## CPC

- B22F 9/24: starting from liquid metal compounds, e.g. solutions
- C07F 7/025: {without C-silicon linkages}
- C08G 77/58: Metal-containing linkages
- C08K 3/10: Metal compounds
- C09D 1/00: Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances
- C23C 18/44: using reducing agents
- B05D 1/005: {Spin coating}
- B05D 1/18: performed by dipping
- B22F 1/054: Nanosized particles
- B22F 1/102: Metallic powder coated with organic material
- B22F 2999/00: Aspects linked to processes or compositions used in powder metallurgy
- B82Y 30/00: Nanotechnology for materials or surface science, e.g. nanocomposites
- B82Y 40/00: Manufacture or treatment of nanostructures
- C08K 2003/2206: {of calcium, strontium or barium}
- C22C 5/00: Alloys based on noble metals
- C23C 18/14: Decomposition by irradiation, e.g. photolysis, particle radiation {or by mixed irradiation sources}
- C23C 18/143: {Radiation by light, e.g. photolysis or pyrolysis}
- Y10S 977/773: Nanoparticle, i.e. structure having three dimensions of 100 nm or less
- Y10S 977/81: Of specified metal or metal alloy composition
- Y10S 977/892: Liquid phase deposition
- Y10S 977/896: Chemical synthesis, e.g. chemical bonding or breaking
- B22F: WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER (making alloys by powder metallurgy C22C); APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- C07F: ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM (metal-containing porphyrins C07D487/22)
- C08G: MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08K: Use of inorganic or non-macromolecular organic substances as compounding ingredients (paints, inks, varnishes, dyes, polishes, adhesives C09)
- C09D: COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR (cosmetics A61K; processes for applying liquids or other fluent materials to surfaces, in general, B05D; staining wood B27K5/02; glazes or vitreous enamels C03C; natural resins, French polish, drying-oils, driers, turpentine, per se, C09F; polishing compositions other than French polish, ski waxes C09G; adhesives or use of materials as adhesives C09J; materials for sealing or packing joints or covers C09K3/10; materials for stopping leaks C09K3/12; processes for the electrolytic or electrophoretic production of coatings C25D)
- C23C: COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL (making metal-coated products by extrusion B21C23/22; covering with metal by connecting pre-existing layers to articles, see the relevant places, e.g. B21D39/00, B23K; metallising of glass C03C; metallising mortars, concrete, artificial stone, ceramics or natural stone C04B41/00; enamelling of, or applying a vitreous layer to, metals C23D; treating metal surfaces or coating of metals by electrolysis or electrophoresis C25D; single-crystal film growth C30B; by metallising textiles D06M11/83; decorating textiles by locally metallising D06Q1/04)
- B05D: PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL (conveying articles or workpieces through baths of liquid B65G, e.g. B65G49/02)
- B82Y: SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- C22C: ALLOYS (treatment of alloys C21D, C22F)
- Y10S: TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS

## Abstract

Provided are a compound, including metal atoms for forming metal nano particles through a simple process within a short time at a low production cost for commercial purposes, and a solution including the compound.

## Claims

### Claim 1

A solution for forming metal nano particles, comprising:
a compound having the following chemical formula:
wherein M is a metal atom of gold (Au), R is (—CH2—)n, F is selected from the group consisting of sulfur (S), nitrogen (N) and phosphorus (P), X is a silyl group, Y represents an oxidation state of the metal atom in the compound of +1, m is a natural number ranging from 1 to 10, and n is a natural number ranging from 1 to 15;
a solvent; and
a stabilizer for preventing metal atoms from being precipitated in the solvent.

### Claim 2 (depends on 1)

The solution of claim 1, wherein the solvent is selected from the group consisting of methanol, ethanol, 1-propanol, 2-propanol, 1-pentanol, 2-butoxyethanol and ethylene glycol, acetone, 2-butanone and 4-methyl-2-propanone, acetic acid, pentane, hexane, decane, cyclohexane, cyclopentane and 2,2,4-trimethylpentane, 1-butylene, 2-butylene, 1-pentene, 2-pentene, isobutylene, carbon tetrachloride, 1-chlorobutane, 1-chloropentane, 2-chloropropane, 1-chloropropane, bromoethane, chloroform, dichloromethane, 1,2-dichloroethane, 1-nitropropane, nitromethane, and a combination thereof.

### Claim 3 (depends on 1)

The solution of claim 1, wherein the stabilizer includes a basic compound.

### Claim 4 (depends on 3)

The solution of claim 3, wherein the basic compound is selected from the group consisting of sodium hydroxide, potassium hydroxide, calcium hydroxide, aqueous ammonia, and a combination thereof.

### Claim 5 (depends on 1)

The solution of claim 1, wherein the F is sulfur (S).

### Claim 6 (depends on 1)

The solution of claim 1, wherein the X is an alkoxysilyl group or an alkylsilyl group.

### Claim 7

A method for preparing a solution including
a compound having the following chemical formula:
wherein M is a metal atom of gold (Au), R is (—CH2—)n, F is selected from the group consisting of sulfur (S), nitrogen (N) and phosphorus (P), X is a silyl group, Y represents an oxidation state of the metal atom in the compound of +1, m is a natural number ranging from 1 to 10, and n is a natural number ranging from 1 to 15, the method comprising:
reacting a metal precursor with an organic material in the presence of a solvent to form the solution including the compound; and
adding a stabilizer to the solution including the compound,
wherein the metal precursor is selected from the group consisting of halides, chalcogenides, hydrochlorides, nitrates, sulfates, acetates, or ammonium salts of gold (Au), and,
wherein the organic material is a compound including two different functional groups, a first functional group being one or more selected from the group consisting of a thiol group, an amine group, and a phosphine group and a second functional group being a silyl group.

### Claim 8 (depends on 7)

The method of claim 7, wherein the metal precursor is selected from the group consisting of HAuCl4, AuCl, AuCl3, Au4Cl8, KAuCl4, NaAuCl4, NaAuBr4, AuBr3, AuBr, AuF3, AuF5, AuI, AuI3, KAu(CN)2, Au2O3, Au2S, Au2S3, AuSe, Au2Se3 and a combination thereof.

### Claim 9 (depends on 7)

The method of claim 7, wherein the organic material is selected from the group consisting of: 3-mercaptopropyl trimethoxysilane (3-MPTMS), 3-mercaptopropyl triethoxysilane, 11-mercaptoundecyl trimethoxysilane, mercaptomethyl methyl diethoxysilane, (3-aminopropyl)trimethoxysilane (APS), (3-aminopropyl)triethoxysilane, N-(3-aminopropyl)-dimethyl-ethoxysilane (APDMES), mercaptopropyl trimethoxysilane (MPTMS), N-(2-aminoethyl)-3aminopropyltrimethoxysilane, (3-trimethoxysilylpropyl)diethylenetriamine, and N-(trimethoxysilylpropyl)ethylenediamine triacetic acid.

### Claim 10 (depends on 7)

The method of claim 7, wherein the solvent is selected from the group consisting of methanol, ethanol, 1-propanol, 2-propanol, 1-pentanol, 2-butoxyethanol and ethylene glycol, acetone, 2-butanone and 4-methyl-2-propanone, acetic acid, pentane, hexane, decane, cyclohexane, cyclopentane and 2,2,4-trimethylpentane, 1-butylene, 2-butylene, 1-pentene, 2-pentene, isobutylene, carbon tetrachloride, 1-chlorobutane, 1-chloropentane, 2-chloropropane, 1-chloropropane, bromoethane, chloroform, dichloromethane, 1,2-dichloroethane, 1-nitropropane, nitromethane, and a combination thereof.

### Claim 11 (depends on 7)

The method of claim 7, wherein the stabilizer includes a basic compound.

### Claim 12 (depends on 11)

The method of claim 11, wherein the basic compound is selected from the group consisting of sodium hydroxide, potassium hydroxide, calcium hydroxide, aqueous ammonia, and a combination thereof.

### Claim 13 (depends on 7)

The method of claim 7, wherein a mixing ratio of the metal precursor to the organic material ranges from about 1:3-12.