|
|
| Type |
Poster Presentation |
| Area |
Physical Chemistry |
| Room No. |
Event Hall |
| Time |
4월 20일 (금요일) 11:00~12:30 |
| Code |
PHYS.P-73 |
| Subject |
Synthesis of Cu@Ag core-shell structure with various shape of Ag shell |
| Authors |
Dong Hyun Kim, Chang Woo Kim*
Graphic Arts Information Engineering, Pukyong National University, Korea
|
| Abstract |
Meal, Cu and Ag have been widely used in the conductive paste field because of their high electrical conductivity. Cu has economical and outstanding electrical conductivity, but show low oxidation stability. So, we report core-shell structure using metal with good oxidation stability. Ag is not economical because of its high cost, but it has good electrical conductivity and high oxidation stability. Cu core-Ag shell nanoparticles were prepared using a two-step polyol process. First, spherical copper seeds with size of about 100 nm were produced by polyol process. Second, various shapes of Ag shells prepared by polyvinylpyrrolidone concentration control were coated on Cu seed surface. UV–vis spectroscopy, scanning electron microscopy and transmission electron microscopy were used to characterize the resulting core-shell nanoparticles. This Cu@Ag structures will be used for conductive paste. |
| E-mail |
dh941128@naver.com |
|
121st General Meeting of the KCS