Long-range oxygen ordering linked to topotactic oxygen release in Pr<sub>2</sub>NiO<sub>4+δ</sub> fuel cell cathode material
Rajesh Dutta, Avishek Maity, Anna Marsicano, Monica Ceretti, Dmitry Chernyshov, Alexeï Bosak, Antoine Villesuzanne, Georg Roth, Giuditta Perversi, Werner Paulus
Abstract
Complex oxygen ordering evidenced for the oxygen membrane cathode material Pr<sub>2</sub>NiO<sub>4.25</sub> at room temperature with translational periodicities attaining almost 100 Å by single-crystal synchrotron diffraction studies.
Topics & Concepts
Non-blocking I/OCathodeOxygenSynchrotronMaterials scienceCrystallographyCrystal structureOxygen evolutionAtmospheric temperature rangeDiffractionX-ray crystallographyChemistryElectrodeCatalysisElectrochemistryPhysical chemistryOpticsPhysicsThermodynamicsOrganic chemistryBiochemistryAdvancements in Solid Oxide Fuel CellsMagnetic and transport properties of perovskites and related materialsElectronic and Structural Properties of Oxides