Structural and microstructural investigations of Pd-doped lanthanum strontium ferrite with stoichiometry La0.6Sr0.4Fe0.9Pd0.1O3-δ (LSFPd) were carried out under oxidizing and reducing conditions. LSFPd exhibited a smart behavior with a reversible redox structural transformation occurring upon switching from air to hydrogen and then back to air. Exsolution of nanometric metal particles was observed after reduction, and reincorporation of metal cations onto the perovskite structure was confirmed after re-oxidation. The electrochemical performances were evaluated on electrolyte supported cells using LSFPd as symmetric electrodes and La0.8Sr0.2Ga0.8Mg0.2O3-δ (LSGM) as electrolyte. Fuel cell tests revealed promising performance in H2.
Di Bartolomeo, E., Zurlo, F., Marcucci, A., Licoccia, S. (2019). Pd-doped lanthanum strontium ferrite as promising reversible electrode. ??????? it.cilea.surplus.oa.citation.tipologie.CitationProceedings.prensentedAt ??????? International Symposium on solid oxide fuel cells (SOFC 2019), Kyoto (Japan) [10.1149/09101.1949ecst].
Pd-doped lanthanum strontium ferrite as promising reversible electrode
Di Bartolomeo E.
;Zurlo F.Membro del Collaboration Group
;Marcucci A.Membro del Collaboration Group
;Licoccia S.Membro del Collaboration Group
2019-01-01
Abstract
Structural and microstructural investigations of Pd-doped lanthanum strontium ferrite with stoichiometry La0.6Sr0.4Fe0.9Pd0.1O3-δ (LSFPd) were carried out under oxidizing and reducing conditions. LSFPd exhibited a smart behavior with a reversible redox structural transformation occurring upon switching from air to hydrogen and then back to air. Exsolution of nanometric metal particles was observed after reduction, and reincorporation of metal cations onto the perovskite structure was confirmed after re-oxidation. The electrochemical performances were evaluated on electrolyte supported cells using LSFPd as symmetric electrodes and La0.8Sr0.2Ga0.8Mg0.2O3-δ (LSGM) as electrolyte. Fuel cell tests revealed promising performance in H2.| File | Dimensione | Formato | |
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