Platinum-Cobalt Catalysts for the Oxygen Reduction Reaction in High Temperature Proton Exchange Membrane Fuel Cells – Long Term Behavior Under Ex-situ and In-situ Conditions

Alexander Schenk*, Christoph Grimmer, Markus Perchthaler, Stephan Weinberger, Birgit Elvira Pichler, Christoph Heinzl, Christina Scheu, Franz-Andreas Mautner, Brigitte Bitschnau, Viktor Hacker

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

Platinum cobalt catalysts (Pt–Co) have attracted much interest as cathode catalysts for proton exchange membrane fuel cells (PEMFCs) due to their high activity toward oxygen reduction reaction (ORR). Many of the reported catalysts show outstanding performance in ex-situ experiments. However, the laborious synthesis protocols of these Pt–Co catalysts disable an efficient and economic production of membrane electrode assemblies (MEAs). We present an economic, flexible and continuous Pt-M/C catalyst preparation method as part of a large scale membrane electrode assembly manufacturing. In comparison, the as-prepared Pt–Co/C based high temperature (HT)-PEM MEA showed an equal performance to a commercially available HT-PEM MEA during 600 h of operation under constant load, although the commercial one had a significantly higher Pt loading at the cathode.
Original languageEnglish
Pages (from-to)313-322
JournalJournal of Power Sources
Volume266
DOIs
Publication statusPublished - 2014

Fields of Expertise

  • Mobility & Production

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