RT Journal Article T1 Perspectives on Cathodes for Protonic Ceramic Fuel Cells. A1 Mather, Glenn A1 Muñoz-Gil, Daniel A1 Zamudio-García, Javier A1 Porras-Vázquez, José Manuel A1 Marrero-López, David A1 Pérez-Coll, Domingo K1 Pilas de combustible K1 Cátodos AB Protonic ceramic fuel cells (PCFCs) are promising electrochemical devices for the efficientand clean conversion of hydrogen and low hydrocarbons into electrical energy. Their intermediateoperation temperature (500–800 C) proffers advantages in terms of greater component compatibility,unnecessity of expensive noble metals for the electrocatalyst, and no dilution of the fuel electrodedue to water formation. Nevertheless, the lower operating temperature, in comparison to classicsolid oxide fuel cells, places significant demands on the cathode as the reaction kinetics are slowerthan those related to fuel oxidation in the anode or ion migration in the electrolyte. Cathode designand composition are therefore of crucial importance for the cell performance at low temperature.The different approaches that have been adopted for cathode materials research can be broadlyclassified into the categories of protonic–electronic conductors, oxide-ionic–electronic conductors,triple-conducting oxides, and composite electrodes composed of oxides from two of the othercategories. Here, we review the relatively short history of PCFC cathode research, discussing trends,highlights, and recent progress. Current understanding of reaction mechanisms is also discussed. PB MDPI YR 2021 FD 2021-06-09 LK https://hdl.handle.net/10630/28368 UL https://hdl.handle.net/10630/28368 LA eng NO Mather, G.C.; Muñoz-Gil, D.; Zamudio-García, J.; Porras-Vázquez, J.M.; Marrero-López, D.; Pérez-Coll, D. Perspectives on Cathodes for Protonic Ceramic Fuel Cells. Appl. Sci. 2021, 11, 5363. NO This work was funded by MICINN (Spain), grant numbers RTI2018-095088-B-I00 and RTI2018-093735-B-I00. DS RIUMA. Repositorio Institucional de la Universidad de Málaga RD 27 ene 2026