Nano wire and method for manufacturing the same

Patent metadata

Field	Value
Publication number	US-9528168-B2
Application number	US-201113994617-A
Country	US
Kind code	B2
Filing date	Dec 14, 2011
Priority date	Dec 14, 2010
Publication date	Dec 27, 2016
Grant date	Dec 27, 2016

Abstract

A method for manufacturing a nanowire is provided. A solvent is heated. A catalyst is added to the solvent. A metal compound is added to the solvent to form a metal nanowire. The metal nanowire is refined. In the refining of the metal nanowire, the catalyst and a refinement material to converting an insoluble material generated by the catalyst into a soluble material may be added to the solvent. The catalyst may include NaCl and at least one selected from the group consisting of Mg, K, Zn, Fe, se, Mn, P, Br and I.

First claim

The invention claimed is:

1. A method for manufacturing a nanowire, the method comprising:
heating a solvent;
adding a catalyst to the solvent;
adding a metal compound to the solvent to form a metal nanowire; and
refining the metal nanowire by adding a refining material to the solvent to convert an insoluble material generated by the catalyst into a soluble material,
wherein the refining material comprises at least one selected from the group consisting of KCN and NaCN, and
wherein a molar ratio of the refining material to the catalyst (moles of refining material/moles of catalyst) is 1.5 to 3.

2. The method of claim 1 , wherein the catalyst comprises at least one selected from the group consisting of AgCl, KBr, KI, CuCl 2 , PtCl 2 , H 2 PtCl 4 , H 2 PtCl 6 , AuCl, AuCl 3 , HAuCl 4 and HAuCl 2 .

3. The method of claim 1 , wherein the refining material is added to the solvent in a state that the refining material is dissolved in distilled water.

4. The method of claim 1 , wherein the metal nanowire comprises silver (Ag).

5. The method of claim 1 , wherein the solvent comprises at least one selected from the group consisting of propylene glycol (PG), 1,3-propanediol, and dipropylene glycol, and in the heating of the solvent, the solvent is heated to a temperature ranging from 80° C. to 140° C.

6. The method of claim 1 , wherein the metal nanowire has a length of 20 μm or more.

7. The method of claim 1 , wherein the catalyst comprises NaCl and at least one selected from the group consisting of Mg, K, Zn, Fe, Se, Mn, P, Br, and I.

8. The method of claim 7 , wherein the catalyst comprises at least one of bay salt and refined salt.

9. The method of claim 7 , wherein a ratio by weight of the catalyst to the metal compound is in a range of 0.005:100 to 0.5:100.

10. The method of claim 1 , wherein the catalyst comprises 80 wt % to 90 wt % NaCl, 3 wt % to 12 wt % H 2 O, 0.2 wt % to 1.2 wt % Mg, 0.05 wt % to 0.5 wt % K, and 1 wt % to 8 wt % of an additional component; and wherein the additional component comprises at least one selected from the group consisting of Zn, Fe, Se, Mn, P, Br, and I.

11. The method of claim 1 , further comprising:
after the heating of the solvent, adding a capping agent to the solvent; and
after the adding of the metal compound to the solvent, adding a room temperature solvent to the solvent.

12. The method of claim 11 , wherein the capping agent is contained by 50 parts by weight to 300 parts by weight with respect to 100 parts by weight of the metal compound.

Assignees

• Moon Jong Woon
• Jeong Woo Ju
• Choi Joon Rak
• Park Soung Kyu
• Choi Won Jong
• Lee Sang Hoon
• Lee Yong Sang
• Seo Hyeok Soo
• Lg Innotek Co Ltd
• Nanopyxis Co Ltd

Inventors

• Moon Jong Woon
• Jeong Woo Ju
• Choi Joon Rak
• Park Soung Kyu
• Choi Won Jong
• Lee Sang Hoon
• Lee Yong Sang
• Seo Hyeok Soo

Classifications

• H10W20/0554

  of nanotubes or nanowires · CPC title

• B22F1/0547

  Nanofibres or nanotubes · CPC title

• B22F9/24 Primary

  starting from liquid metal compounds, e.g. solutions · CPC title

• B82Y40/00

  Manufacture or treatment of nanostructures · CPC title

• H01B1/02

  mainly consisting of metals or alloys · CPC title