Metallocorroles as Nonprecious-Metal Catalysts for Oxygen Reduction

Naomi Levy, Atif Mahammed, Monica Kosa, Dan T. Major, Zeev Gross, Lior Elbaz

Research output: Contribution to journalArticlepeer-review


The future of affordable fuel cells strongly relies on the design of earth-abundant (non-platinum) catalysts for the electrochemical oxygen reduction reaction (ORR). However, the bottleneck in the overall process occurs therein. We have examined herein trivalent Mn, Fe, Co, Ni, and Cu complexes of β-pyrrole-brominated corrole as ORR catalysts. The adsorption of these complexes on a high-surface-area carbon powder (BP2000) created a unique composite material, used for electrochemical measurements in acidic aqueous solutions. These experiments disclosed a clear dependence of the catalytic activity on the metal center of the complexes, in the order of Co>Fe>Ni>Mn>Cu. The best catalytic performance was obtained for the CoIII corrole, whose onset potential was as positive as 0.81V versus the reversible hydrogen electrode (RHE). Insight into the properties of these systems was gained by spectroscopic and computational characterization of the reduced and oxidized forms of the metallocorroles.

Original languageEnglish
Pages (from-to)14080-14084
Number of pages5
JournalAngewandte Chemie - International Edition
Issue number47
StatePublished - 16 Nov 2015


  • cobalt
  • corroles
  • electrocatalysis
  • fuel cells
  • oxygen reduction reaction

All Science Journal Classification (ASJC) codes

  • Catalysis
  • Chemistry(all)


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