| 학회 |
한국화학공학회 |
| 학술대회 |
2015년 가을 (10/21 ~ 10/23, 일산 KINTEX) |
| 권호 |
21권 2호, p.2065 |
| 발표분야 |
재료 |
| 제목 |
Synthesis of Sub-10 nm Pd-Pt Core-Shell Cubes and Octahedra, and Their Electrocatalytic Properties |
| 초록 |
Core-shell nanocrystals with well-defined shapes could be one of the ideal catalysts for various electocatalytic reactions including oxygen reduction reaction (ORR) and formic acid oxidation reaction (FOR). This paper describes a simple, aqueous-phase route to the synthesis of Pd-Pt core-shell cubes and octahedra by heterogeneous seeded growth of Pt shell on well-defined Pd cubes and octahedra. All core-shell nanocrystals are less than 10 nm and the thickness of Pt shells on Pd nanocrystals are ultra-thin, less than 1 nm. We have also investigated the electrocatalytic properties of the Pd-Pt core-shell nanocrystals, demonstrating Pd-Pt core-shell octahedra bounded by {111} facets exhibited higher activity than cubes enclosed by {100} facets towards both ORR and FOR. |
| 저자 |
유태경, 김인호
|
| 소속 |
경희대 |
| 키워드 |
palladium; platinum; core-shell
|
| E-Mail |
|
| 원문파일 |
초록 보기 |
