Speakers

The efficiency and long-term stability of solid oxide fuel cells  are significantly influenced by the stability and activity of their electrode materials, particularly those based on perovskites. We employed methods such as atomic layer deposition  and solution infiltration to create highly defective surface layers, addressing issues like cation segregation and electrode surface degradation that affect fuel cell performance stabilities. Our findings demonstrate that these modifications substantially improve the oxygen reduction and evolution reactions, reduce polarization resistance, and suppress surface cation segregation. The underlying mechanisms, including the role of oxygen vacancies and interfacial engineering, will be discussed. By advancing surface modification technologies, we aim to develop more efficient and durable SOCs, which are crucial for sustainable energy conversion and storage applications. This research underscores the potential of chemical engineering innovations in addressing the challenges of modern SOC electrode performances.