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

Chair of Technical Electrochemistry

Technical University of Munich

Research output: Contribution to journal › Article › peer-review

9 Scopus citations

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).

Original language	English
Pages (from-to)	F831-F833
Journal	Journal of the Electrochemical Society
Volume	164
Issue number	7
DOIs	https://doi.org/10.1149/2.1091707jes
State	Published - 2017

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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).",

author = "Pankaj Madkikar and Thomas Mittermeier and Gasteiger, {Hubert A.} and Michele Piana",

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AU - Madkikar, Pankaj

AU - Mittermeier, Thomas

AU - Gasteiger, Hubert A.

AU - Piana, Michele

PY - 2017

Y1 - 2017

N2 - 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).

AB - 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).

UR - http://www.scopus.com/inward/record.url?scp=85020025721&partnerID=8YFLogxK

U2 - 10.1149/2.1091707jes

DO - 10.1149/2.1091707jes

M3 - Article

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VL - 164

SP - F831-F833

JO - Journal of the Electrochemical Society

JF - Journal of the Electrochemical Society

IS - 7

ER -

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

Abstract

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