The conventional Pr 0.5 Sr 0.5 ScO 3 proton conductor is modified through Fe-doping, aiming to introduce enhanced electronic conductivity and catalytic activity into the proton-conducting oxide matrix, thereby rendering it suitable for application as a cathode for proton-conducting solid oxide fuel cells (H-SOFCs). A low Fe-doping concentration inadequately develops electronic conduction pathways within the material, diminishing its power output. Conversely, employing an oxide with excessively high Fe concentration similarly fails to yield opti...
