Role of the crystal structure and oxygen vacancies in the transport properties and electrochemical performance of LaNi0.6Fe0.4-xMxO3-¿
We have investigated LaNi0.6Fe0.4-xMxO3-¿ (M= Cu, Cr) oxides as contact materials for the Reversible Solid Oxide Fuel Cells (RSOFCs) stacks. As B-site dopants influence the crystal structure and electrical properties, the goals of this neutron thermodiffraction proposal are: i) To determine the thermal evolution of the crystal structure of LaNi0.6Fe0.3Cu0.1O3-¿, LaNi0.6Fe0.2Cu0.2O3-¿, and LaNi0.6Fe0.3Cr0.1O3-¿ samples at the working conditions of a RSOFC. We will pay special attention to the oxygen vacancies concentration, the orthorhombic ¿ rhombohedral structural transition and the possible cation and anion structural ordering; ii) To correlate the effect of the crystal structure on the transport and electrochemical properties of the selected materials. For these tasks we ask for 3 days at D2B diffractometer.
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Jesus Prado-Gonjal; FERNANDEZ DIAZ Maria Teresa; GONZALEZ-BARRIOS Marta and MOLERO Beatriz. (2021). Role of the crystal structure and oxygen vacancies in the transport properties and electrochemical performance of LaNi0.6Fe0.4-xMxO3-¿. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.5-24-675
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This data is not yet public