Multilayer Nanoarchitectured Air Electrodes for High-Performance Solid Oxide Cells

at 1.3 V in SOEC mode at 700 °C are attained, surpassing the performance of state-of-the-art cells utilizing conventional electrodes by approximately 50 and 40%, respectively. Tests conducted in both SOFC and SOEC operation for up to ∼160 h also demonstrated good stability of the multilayer nanoarchitecture while retaining high performance. This study underscores the substantial benefits of nanoarchitectural structuring of air electrodes, demonstrating its potential to significantly enhance performance with long-term stability in SOC applications.