Polyaniline/Platinum Composite Cathode Catalysts Towards Durable Polymer Electrolyte Membrane Fuel Cells

Katharina Kocher*, Viktor Hacker

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


Polymer stabilization proved to be a promising approach to increase the catalytic performance of common platinum/carbon based cathode catalysts (Pt/C) used in polymer electrolyte membrane fuel cells (PEMFCs). Platinum and polyaniline composite catalysts (Pt/C/PANI) were prepared by combining chemical polymerization reactions with anion exchange reactions. Electrochemical ex‐situ characterizations of the decorated Pt/C/PANI catalysts show high catalytic activity toward the oxygen reduction reaction (ORR) and, more importantly, a significant enhanced durability compared to the undecorated Pt/C catalyst. Transmission electron microscopy (TEM) investigations reveal structural benefits of Pt/C/PANI for ORR catalysis. All studies confirm high potential of Pt/C/PANI for practical fuel cell application.
Original languageEnglish
Pages (from-to)1109-1112
Number of pages4
Issue number11
Publication statusPublished - 5 Nov 2020


  • durability improvement
  • fuel cells
  • oxygen catalysis
  • platinum
  • polymers

ASJC Scopus subject areas

  • Chemistry(all)

Fields of Expertise

  • Mobility & Production

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