Development of ruthenium-based catalysts for oxygen reduction reaction

Lingyun Liu, Hansung Kim, Jong Won Lee, Branko N. Popov

Research output: Contribution to journalArticlepeer-review

37 Citations (Scopus)


A process was developed to synthesize ruthenium-based chelate (Ru Nx) electrocatalysts for the oxygen reduction reaction, using Ru Cl3 and propylene diammine as the Ru and N precursors, respectively. High-temperature pyrolysis has a critical role in the formation of the catalytic Ru-N sites for oxygen reduction. The Ru Nx catalyst modified in the presence of nitrogen-containing organic exhibited comparable catalytic activity and selectivity for oxygen reduction to the carbon-supported Pt catalyst in acidic media. The catalyst generates less than 2% hydrogen peroxide during oxygen reduction.

Original languageEnglish
Pages (from-to)A123-A128
JournalJournal of the Electrochemical Society
Issue number2
Publication statusPublished - 2007

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Renewable Energy, Sustainability and the Environment
  • Surfaces, Coatings and Films
  • Electrochemistry
  • Materials Chemistry


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