Communication - Synergistic effect on the activity of ZrO2-Fe as PGM-free ORR catalysts for PEMFCs

Pankaj Madkikar; Thomas Mittermeier; Hubert A. Gasteiger; Michele Piana

doi:10.1149/2.1091707jes

Communication - Synergistic effect on the activity of ZrO₂-Fe as PGM-free ORR catalysts for PEMFCs

Pankaj Madkikar, Thomas Mittermeier, Hubert A. Gasteiger, Michele Piana

Lehrstuhl für Technische Elektrochemie

Technische Universität München

Publikation: Beitrag in Fachzeitschrift › Artikel › Begutachtung

9 Zitate (Scopus)

Abstract

Here we report a new strategy to enhance the ORR activity of valve-metal-oxide electrocatalysts by combining an aliovalent cation (Fe) with ZrO₂ (particle size <10 nm). This results in a strong increase of the ORR activity, which is clearly higher than that obtained by the individual components. The highest ORR activity for a carbon supported ZrO₂ catalyst with 12 wt% ZrO₂ is observed upon the addition of 0.36-1.0 wt% Fe (≡ Fe/Zr atomic ratios of 0.02-0.08).

Originalsprache	Englisch
Seiten (von - bis)	F831-F833
Fachzeitschrift	Journal of the Electrochemical Society
Jahrgang	164
Ausgabenummer	7
DOIs	https://doi.org/10.1149/2.1091707jes
Publikationsstatus	Veröffentlicht - 2017

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AU - Piana, Michele

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