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Journal of Applied Electrochemistry

, Volume 44, Issue 11, pp 1219–1223 | Cite as

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

  • Ah-Reum Park
  • Young-Woo Lee
  • Da-Hee Kwak
  • Bumwook Roh
  • Inchul Hwang
  • Kyung-Won Park
Research Article
Part of the following topical collections:
  1. Fuel cells

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.

Keywords

Core–shell PdCo@Pt Electrocatalyst Oxygen reduction reaction 

Notes

Acknowledgments

This work was supported by New & Renewable Energy R&D Program (2011301003007A) of the Ministry of Knowledge and Economy.

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Copyright information

© Springer Science+Business Media Dordrecht 2014

Authors and Affiliations

  • Ah-Reum Park
    • 1
  • Young-Woo Lee
    • 1
  • Da-Hee Kwak
    • 1
  • Bumwook Roh
    • 2
  • Inchul Hwang
    • 2
  • Kyung-Won Park
    • 1
  1. 1.Department of Chemical EngineeringSoongsil UniversitySeoulRepublic of Korea
  2. 2.Hyundai Motor CompanyYonginRepublic of Korea

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