Application of Molecular Catalysts for the Oxygen Reduction Reaction in Alkaline Fuel Cells

Ariel Friedman, Michal Mizrahi, Naomi Levy, Noam Zion, Michael Zachman, Lior Elbaz

Research output: Contribution to journalArticlepeer-review

20 Scopus citations

Abstract

The development of precious group metal-free (PGM-free) catalysts for the oxygen reduction reaction is considered as the main thrust for the cost reduction of fuel cell technologies and their mass production. Within the PGM-free category, molecular catalysts offer an advantage over other heat-treated PGM-free catalysts owing to their well-defined structure, which enables further design of more active, selective, and durable catalysts. Even though non-heat-treated molecular catalysts with exceptional performance have been reported in the past, they were rarely tested in a fuel cell. Herein, we report on a molecular catalyst under alkaline conditions: fluorinated iron phthalocyanine (FeFPc) supported on cheap and commercially available high-surface area carbon─BP2000 (FeFPc@BP2000). It exhibits the highest activity ever reported for molecular catalysts under alkaline conditions in half-cells and fuel cells.

Original languageEnglish
Pages (from-to)58532-58538
Number of pages7
JournalACS applied materials & interfaces
Volume13
Issue number49
DOIs
StatePublished - 15 Dec 2021

Bibliographical note

Publisher Copyright:
© 2021 American Chemical Society. All rights reserved.

Keywords

  • electrocatalysis
  • fuel cells
  • molecular catalysts
  • oxygen reduction reaction
  • phthalocyanines

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