Engineered Nanofunctional Thin Films as Interfacial Layers to Enhance Performance and Durability of SOFCs

Autor: Machado, Marina, Baiutti, Federico, Bernadet, Lucile, Morata, Alex, Nuñez, Marc, Ouweltjes, Jan Pieter, Fonseca, Fabio Coral, Torrell, Marc, Tarancón, Albert
Zdroj: ECS Transactions; May 2023, Vol. 111 Issue: 6
Abstrakt: A strategy to improve the performance and durability of solid oxide fuel cells (SOFCs) is to increase the cathodic activity and decrease the interfacial resistance between the cathode and electrolyte. Pulsed laser deposition (PLD) has been shown to be a promising method to engineer functional interlayers to enhance the cell's performance. In the present study, a bilayer consisting of Sm0.2Ce0.8O2−δ(SDC) barrier layer (BL) and a nanocomposite consisting of SDC-La0.8Sr0.2MnO3−δ(SDC-LSM) employed as a cathode functional layer were deposited by PLD in an anode supported SOFC. The fuel cell showed a maximum power density of 0.30 W∙cm−2 at 750 °C. Most importantly, a durability test carried out for 700 h at 750 °C showed a remarkably stable performance of the fuel cell.
Databáze: Supplemental Index