Ethanol - Tolerant oxygen reduction reaction of non-pt catalysts in alkaline electrolyte

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

*Corresponding author for this work

Research output: Contribution to journalArticle

Abstract

Ag/C, Mn3O4/C and AgMnO2/C electrocatalysts were selected for nanocatalyst structure and electrochemical activity characterisation by transmission electron microscopy (TEM), X-ray spectroscopy (EDX), cyclic voltammetry (CV), X-ray diffraction (XRD) and oxygen reduction reaction (ORR). The nanocatalysts displayed ethanol-tolerance for ORR in KOH solution electrolyte at different temperatures. All electrocatalysts prevented oxidation from ethanol crossover through the membrane from the anode to cathode compartments in alkaline direct ethanol fuel cells (ADEFCs). ORR results confirmed that AgMnO2/C significantly improved the current activity.

Original languageEnglish
Pages (from-to)199-207
Number of pages9
JournalJournal of New Materials for Electrochemical Systems
Volume19
Issue number4
Publication statusPublished - 1 Jan 2016

Keywords

  • Alkaline direct ethanol fuel cell
  • Ethanol-tolerant
  • Fuel cells
  • Manganese oxides
  • Oxygen reduction reaction
  • Silver manganese oxides

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Materials Science(all)
  • Electrochemistry

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