Highly active catalysts towards oxygen reduction reaction (ORR) with good stability are critical for reduced temperature solid oxide fuel cells (SOFCs). Nano [email protected](M = La, Sm, Pr) catalyst with core@shell structure is in-situ synthesized via a facile hydrothermal method on porous La0.6Sr0.4CO0.2Fe0.8O3-delta (LSCF) scaffold as SOFC cathode. The diameter of the silver core is similar to 60 nm with a uniform outer shell similar to 20 nm in thickness. A dramatic decrease (similar to 80% at 550 degrees C) on the interfacial polarization resistance was observed for this catalyst-decorated cathode compared to the pristine one. The durability test demonstrated a relatively stable operation for [email protected] decorated LSCF cathode. The excellent electrochemical performance of this hybrid electrode with convenient fabrication process presents a new strategy for rational design of SOFC cathode with excellent ORR activity and stability. (C) 2019 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.