Yagizatli, Y.Acil, G.Ulas, B.Demir-Kivrak, H.2025-05-102025-05-1020249783031546228978303154621110.1007/978-3-031-54622-8_72-s2.0-85208317114https://doi.org/10.1007/978-3-031-54622-8_7https://hdl.handle.net/20.500.14720/3504The principles of the oxygen reduction reaction (ORR), including elec-trocatalysts and kinetics, are covered in this chapter. Based on the literature, both experimental and theoretical methods are used to explore the ORR kinetics, including reaction processes catalyzed by various electrode materials and catalysts, such as Pt-based alloys, carbon materials, and transition metal macrocyclic complexes. It was emphasized that although there is a large literature on ORR, there is still a need to design materials that can compete with noble metal-containing catalysts for ORR. © The Author(s), under exclusive license to Springer Nature Switzerland AG 2024.eninfo:eu-repo/semantics/closedAccessCatalystCathodeFuel CellNoble MetalOxygen Reduction ReactionBook PartN/AN/A111128