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Unleashing the full potential of Solid Oxide Fuel Cells (SOFCs) hinges on efficient oxygen reduction reactions (ORR) at their cathodes. This review explores how scientists are tackling this challenge by delving into a specific type of cathode material: SDC composites. By meticulously crafting nanostructures and modifying surfaces, researchers are aiming to accelerate ORR kinetics within these composites. We delve into the latest advancements, analyzing how these modifications influence the critical dance of oxygen molecules on the cathode's surface. The review paves the way for future research by highlighting remaining hurdles and promising avenues to further enhance ORR efficiency in SDC composite cathodes.