A Highly Active Perovskite Electrode for the Oxygen Reduction Reaction Below 600 °C

A Highly Active Perovskite Electrode for the Oxygen Reduction Reaction Below 600 °C

The novel perovskite material, SrSc0.175Nb0.025Co0.8O3−δ, shows a rapid bulk oxygen diffusion rate below 550 °C (see oxygen movement indicated by the black arrow). Incorporation as an oxygen reduction cathode into a samarium‐doped ceria fuel cell enables exceptionally high electrochemical performanc...

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Veröffentlicht in:Angewandte Chemie International Edition 2013-12, Vol.52 (52), p.14036-14040
Hauptverfasser: Zhou, Wei, Sunarso, Jaka, Zhao, Mingwen, Liang, Fengli, Klande, Tobias, Feldhoff, Armin
Format: Artikel
Sprache:eng
Schlagworte:
cathode material
electrochemistry
oxygen reduction reaction
perovskite
solid oxide fuel cells
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Zusammenfassung:The novel perovskite material, SrSc0.175Nb0.025Co0.8O3−δ, shows a rapid bulk oxygen diffusion rate below 550 °C (see oxygen movement indicated by the black arrow). Incorporation as an oxygen reduction cathode into a samarium‐doped ceria fuel cell enables exceptionally high electrochemical performance, indicated by a power density of 910 mW cm−2 at 500 °C.
ISSN:1433-7851
1521-3773
DOI:10.1002/anie.201307305