A-site composition engineering in high-entropy AFeO<sub>3</sub> perovskite SOFC cathodes and unraveling oxygen reduction mechanisms
Zepeng Li, Yanfeng Ge, Weilin Jia, Mingrun Du, Xueting Yi, Yu Ma, Jingya Wang, Bo Liu, Yuan Li, Huanbin Li
Abstract
High-entropy perovskite cathodes with tailored A-site compositions are engineered for SOFC. Low-valence and Bi 3+ elements incorporation boost oxygen vacancy formation and iron valence modulation. DRT analysis deciphers oxygen transport mechanisms.
Topics & Concepts
Oxygen reductionOxygenPerovskite (structure)CathodeMaterials scienceComposition (language)Chemical engineeringChemistryPhysical chemistryEngineeringElectrochemistryElectrodeLinguisticsOrganic chemistryPhilosophyElectrocatalysts for Energy ConversionAdvancements in Solid Oxide Fuel CellsFuel Cells and Related Materials