Enhanced electrocatalytic activity and stability of PdCo@Pt core-shell nanoparticles for oxygen reduction reaction

  • Park, Ah-Reum; 
  • Lee, Young-Woo; 
  • Kwak, Da-Hee; 
  • Roh, Bumwook; 
  • Hwang, Inchul; 
  • ... Park, Kyung-Won
Citations

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초록

The carbon-supported PdCo@Pt core-shell nanoparticles for an oxygen reduction reaction (ORR) were prepared via a two-step process at room temperature. The as-prepared PdCo@Pt/C with an average particle size of similar to 3.5 nm exhibited a well-defined nanostructure consisting of Pd-rich core and Pt shell formed by displacing Co core with Pt. Compared to pure Pt, PdCo@Pt/C showed a higher current density in the kinetic controlled region and more positive half-wave potential for the ORR. In a cycling stability test of the PdCo@Pt/C electrocatalyst, no remarkable activity loss was seen.

키워드

Core-shell; PdCo@Pt; Electrocatalyst; Oxygen reduction reaction; CATALYST; LAYER
제목
Enhanced electrocatalytic activity and stability of PdCo@Pt core-shell nanoparticles for oxygen reduction reaction
저자
Park, Ah-Reum; Lee, Young-Woo; Kwak, Da-Hee; Roh, Bumwook; Hwang, Inchul; Park, Kyung-Won
DOI
10.1007/s10800-014-0738-3
발행일
2014-11
유형
Article
저널명
Journal of Applied Electrochemistry
권
44
호
11
페이지
1219 ~ 1223