Towards Perovskite Oxide-Based Electrocatalysts with Zero-Critical Elements for Sustainable Energy Production

The development of solid oxide fuel cell (SOFC) technologies constitutes a piece of the clean energy transition puzzle thanks to their efficiency and the possibility of coupling them with co-electrolysis for CO2 recycling. At large scale, SOFC stacks can supply gigawatts of electricity for utilization, although a long-term vision must consider the present and future availability of the raw materials required for producing each component of SOFCs.he development of materials for SOFC components must not fail to take into consideration the critical elements issue, and it needs to move towards zero- or low-critical element contents. Herein, the attention is focused on perovskite oxide-based electrodes for SOFCs working at intermediate temperatures (IT-SOFCs), namely between 600 and 800 °C.