Benchmarking the Oxygen Reduction Reaction Activity of Pt-Based Catalysts using Standardized Rotating Disk Electrode Methods

Kazuma Shinozaki, Jason W. Zack, Svitlana Pylypenko, Ryan M. Richards, Bryan S. Pivovar, Shyam S. Kocha

Research output: Contribution to journalArticlepeer-review

50 Scopus Citations

Abstract

Thin-film rotating disk electrodes (TF-RDEs) have become the preferred half-cell technique for screening small lab-scale quantities of electrocatalysts targeted for proton exchange membrane fuel cells. Utilizing standardized protocols and best practices for Nafion-based catalyst layer fabrication, we demonstrate that catalyst layers fabricated with the rotational air drying technique result in improved film quality and ∼1.6× higher ORR activity as compared to the conventional stationary air drying technique for PtCo/C catalysts. The ORR activity of a series of candidate Pt-based electrocatalysts having improved kinetics (Pt-alloys), corrosion-resistance carbon supports, various Pt wt% and the implications for practical proton exchange membrane fuel cells (PEMFCs) is discussed.

Original languageAmerican English
Pages (from-to)16820-16830
Number of pages11
JournalInternational Journal of Hydrogen Energy
Volume40
Issue number46
DOIs
StatePublished - 2015

Bibliographical note

Publisher Copyright:
© 2015 Hydrogen Energy Publications, LLC.

NREL Publication Number

  • NREL/JA-5900-65679

Keywords

  • Catalyst
  • Fuel cell
  • ORR
  • Platinum
  • RDE

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