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March 21, 2026EES Catalysis2 citationsOpen Access

Platinum surface oxides govern the cathodic overpotential of the oxygen reduction reaction

ALAlfred LarssonAGAndrea GrespiOVOžbej Vodeb

Key Points

  • The aim is to understand the role of platinum surface oxides in limiting the efficiency of the oxygen reduction reaction.
  • Analyzed the effects of surface oxides on platinum properties
  • Measured the overpotential during the oxygen reduction reaction
  • Assessed impacts on fuel cell performance
  • Identified a significant correlation between surface oxides and cathodic overpotential
  • Demonstrated that oxides increase the overpotential, reducing efficiency
  • Highlighted the need for oxide management to enhance fuel cell performance

Abstract

The oxygen reduction reaction (ORR) on platinum is limited by a substantial overpotential, which hampers the efficiency of fuel cell technologies.

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Cite This Study

Larsson et al. (2026) studied this question.

synapsesocial.com/papers/69be362d6e48c4981c674e52https://doi.org/10.1039/d6ey00014b
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