US 7,611,644 B2
Core-shell structure metal nanoparticles and its manufacturing method
In-Keun Shim, Seoul (Korea, Republic of); Young-Soo Oh, Seongnam-si (Korea, Republic of); and Jae-Woo Joung, Suwon-si (Korea, Republic of)
Assigned to Samsung Electro-Mechanics Co., Ltd., Suwon (Korea, Republic of)
Filed on Feb. 22, 2007, as Appl. No. 11/709,242.
Claims priority of application No. 10-2006-0018250 (KR), filed on Feb. 24, 2006.
Prior Publication US 2007/0212562 A1, Sep. 13, 2007
Int. Cl. H01B 1/00 (2006.01); H01B 1/22 (2006.01); B01J 13/02 (2006.01)
U.S. Cl. 252—500  [252/512; 252/514; 427/213.3] 22 Claims
OG exemplary drawing
 
1. A method of producing metal nanoparticles, the method comprising:
forming copper nanoparticles from a copper precursor by using a reducing agent under a solvent including a primary amine; and
forming a metal thin layer having high reduction potential on the surface of the copper nanoparticles, with a metal precursor which has higher reduction potential than copper.