Ethanol: Tolerant Oxygen Reduction Reaction Catalysts in Alkaline Media

Chakkrapong Chaiburi, Bernd Cermenek, Birgit Elvira Pichler, Christoph Grimmer, Viktor Hacker

Research output: Contribution to journalArticle

Abstract

This paper describes electrocatalysts for the oxygen reduction reaction (ORR) in alkaline direct ethanol fuel cells (ADEFCs), using the non-noble metal electrocatalyst Ag/C, MnO2/C and AgMnO2/C. These electrocatalysts showed tolerance toward ethanol in alkaline media and therefore resistance to ethanol crossover in ADEFCs. Transmission electron microscopy, X-ray spectroscopy (EDX), cyclic voltammetry, and rotating disk electrode (RDE) were employed to determine the morphology, composition, and electrochemical activity of the catalysts. The herein presented results confirm that the AgMnO2/C electrocatalyst significantly outperforms the state-of-the art ORR catalyst platinum.
Original languageEnglish
Article numberJEECS-16-1071
Pages (from-to)021004
Number of pages6
JournalJournal of Electrochemical Energy Conversion and Storage
Volume16
Issue number2
DOIs
Publication statusPublished - 2019

Keywords

  • alkaline direct ethanol fuel cell, ethanol-tolerance, oxygen reduction reaction, silver and manganese oxides

Fields of Expertise

  • Mobility & Production
  • Sustainable Systems

Treatment code (Nähere Zuordnung)

  • Basic - Fundamental (Grundlagenforschung)
  • Experimental

Cooperations

  • NAWI Graz

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