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- Title
Enhanced electrocatalytic activity and stability of PdCo@Pt core-shell nanoparticles for oxygen reduction reaction.
- Authors
Park, Ah-Reum; Lee, Young-Woo; Kwak, Da-Hee; Roh, Bumwook; Hwang, Inchul; Park, Kyung-Won
- Abstract
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 ~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.
- Subjects
ELECTROCATALYSIS; ELECTROCHEMISTRY; ELECTROCATALYSTS; NANOSTRUCTURED materials; REFRIGERANTS
- Publication
Journal of Applied Electrochemistry, 2014, Vol 44, Issue 11, p1219
- ISSN
0021-891X
- Publication type
Article
- DOI
10.1007/s10800-014-0738-3