'In-situ' evolution of the crystalstructure of the Sr0.9Ba0.1Co1-xMxO3-d and SrCo1-x-yFexMyO3-d (M= Ti,Ir) SOFC cathodes.
The novel perovskites Sr0.9Ba0.1Co1-xMxO3-d and SrCo1-x-yFexMyO3-d (M= Ti, Ir) have been evaluated as superior cathodes for solid-oxide fuel cells (SOFC); tests in single fuel cells yield output powers higher than 700 mW/cm2 at 850 oC with H2 as a fuel. In this experiment we aim at unravelling the oxide-ion diffusion path of this family of MIEC (mixed ionic-electronic conductor) oxides. We plan to study the thermal evolution of the crystal structure in order to get information about the actual crystal symmetry, the thermal displacements and oxygen contents, as well as the order-disorder of the oxygen vacancies and their evolution at the actual working conditions in a SOFC cell, in air at temperatures between RT and 900 ºC.
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CASCOS JIMENEZ Vanessa Amelia; ALONSO Jose Antonio; CHIVITE LACABA Monica; FERNANDEZ DIAZ Maria Teresa; Jesus Prado-Gonjal and RIVAS ROJAS Patricia Carolina. (2023). 'In-situ' evolution of the crystalstructure of the Sr0.9Ba0.1Co1-xMxO3-d and SrCo1-x-yFexMyO3-d (M= Ti,Ir) SOFC cathodes.. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.5-24-707
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