Design of PGM-free ORR Catalysts: From Molecular to the State of the Art

Naomi Levy, Lior Elbaz

Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review

Abstract

The state-of-the-art Platinum group metal (PGM)-free oxygen reduction reaction (ORR) catalysts have been synthesized using the pyrolysis of iron, nitrogen, and carbon precursors, and result in highly active ORR catalysts, but their undefined structure limits their further development. Since the inspiration for these catalysts came from well-defined structures of transition metal complexes, it is important to understand the various parameters that govern the reaction potential, selectivity, and the stability with well-defined catalysts and try to extrapolate them to the pyrolyzed catalysts. In this chapter, we give an overview of the parameters that influence the catalysis of ORR with well-defined ORR catalysts. These can later be used to further enhance the performance of the state-of-the-art PGM-free ORR catalysts.

Original languageEnglish
Title of host publicationElectrocatalysis for Membrane Fuel Cells
Subtitle of host publicationMethods, Modeling, and Applications
Publisherwiley
Pages177-203
Number of pages27
ISBN (Electronic)9783527830572
ISBN (Print)9783527348374
DOIs
StatePublished - 1 Jan 2023

Bibliographical note

Publisher Copyright:
© 2024 WILEY-VCH GmbH, Boschstraße 12, 69469 Weinheim, Germany.

Keywords

  • ORR
  • PGM-free
  • corrole
  • macrocycle
  • molecular catalyst
  • phthalocyanine
  • porphyrin

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