A way to limit the long-term degradation of solid oxide fuel cell cathode by decorating the surface with K2NiF4-Structure Pr4Ni3O10+� phase

• Main Authors: Saher S., Tan C.Y., Ramesh S., Yap B.K., Ong B.H., Mo K.H., Al-Furjan M.S.H.
• Other Authors: 36134688200
• Format: Article
• Published: Elsevier B.V. 2025
• Subjects: Cathodes; Coatings; Electrolytic reduction; Grain boundaries; Iron compounds; Lanthanum compounds; Manganese compounds; Nickel compounds; Nozzles; Segregation (metallography); Solid oxide fuel cells (SOFC); Strontium compounds; Surface segregation; Temperature; Ultrasonic effects; Fuel cell cathodes; In-phase; Mixed conducting oxides; Oxygen exchange kinetics; Phase segregations; Prolonged annealing; Solid oxide fuel cell cathode; Solid-oxide fuel cell; Submicron-sized; Surface coverages; Oxygen

Prolonged annealing of La0.6Sr0.4Co0.2Fe0.8O3-� (LSCF) at 700 �C for 1000 h resulted in phase segregation on the surface in the form of submicron-sized SrO on the grains and micron-sized CoFe2O4 particles near the grain boundaries during electrical conductivity relaxation (ECR) measurements. The pre...