An insight into the electrochemical performance of La0.5−xPrxBa0.5CoO3−δ as cathodes for solid oxide fuel cells: study of the O2-reduction reaction

New LT-SOFC cathodes with La 0.5− x Pr x Ba 0.5 CoO 3− δ (0 ≤ x ≤ 0.5) compositions were studied. The La-rich compounds exhibit an inter-growing cubic and tetragonal structure whereas the Pr-rich show a tetragonal structure. Cathode polarization resistances, estimated from electrochemical impedance...

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Veröffentlicht in:	Journal of materials chemistry. A, Materials for energy and sustainability Materials for energy and sustainability, 2018, Vol.6 (34), p.16699-1679
Hauptverfasser:	Garcés, D, Wang, H, Barnett, S. A, Leyva, A. G, Napolitano, F. R, Fuentes, R. O, Troiani, H. E, Mogni, L. V
Format:	Artikel
Sprache:	eng
Schlagworte:	Aging Cathodes Cathodic polarization Chemical reduction Composition Electrochemical analysis Electrochemistry Electrode polarization Emission analysis Evolution Fuel technology Inductively coupled plasma Ion beams Ion diffusion Kinetic coefficients Microstructure Optical emission spectroscopy Oxygen reduction reactions Perovskites Phases Polarization Scanning electron microscopy Solid oxide fuel cells Spectrometry Tomography
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