Temperature and synthetic conditions dependence of the oxygen vacancy formation on LaNi0.6Fe0.4O3-d perovskite
The development of new materials, as well as advanced solid oxide fuel cell (SOFC) components fabrication techniques, is critical in reducing operation temperature and subsequently lessening the cost of these systems. Particularly, combustion methods have been proposed as one of the most promising methods to prepare perovskite oxide powders to be used in SOFC technology. The characteristics of the combustion synthesis oxide powders are typically determined by several synthetic parameters, such as the species of fuel and oxidizer reactants, the fuel/oxidizer ratio, and the subsequent sintering treatment after combustion process. The cathode contact material composition is required to possess high electrical conductivity and appropriate sintering activity to minimize the resistance of the contact layer itself and to protect the steel substrate from excessive oxidation. Besides, it should demonstrate an appropriate thermal expansion behaviour and high thermochemical and structural stability in the oxidizing cathode environment. For our study the LaNi0.6Fe0.4O3-d; perovskite has been selected for its use as contact layer.
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ARRIORTUA Maria Isabel; BASBUS Juan Felipe; CABRERA Analia; CUELLO Gabriel; LARRANAGA Aitor; MORAN Aroa; VIDAL GARCIA Karmele and WAIN Aritza. (2018). Temperature and synthetic conditions dependence of the oxygen vacancy formation on LaNi0.6Fe0.4O3-d perovskite. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.5-23-701
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