Enhanced Performance of LaSrFeO-GdCeO Cathode for Solid Oxide Fuel Cells by Surface Modification with BaCO Nanoparticles.

Recently, Fe-based perovskite oxides, such as LnSrFeO (Ln = La, Pr, Nd, Sm, Eu) have been proposed as potential alternative electrode materials for solid oxide fuel cells (SOFCs), due to their good phase stability, electrocatalytic activity, and low cost. This work presents the catalytic effect of BaCO nanoparticles modified on a cobalt-free LaSrFeO-GdCeO (LSF-GDC) composite cathode at an intermediate-temperature (IT)-SOFC. An electrochemical conductivity relaxation investigation (ECR) shows that the K value of the modified LSF-GDC improves up to a factor of 17.