Characterization of Solid Oxide Fuel Cells with LSCF-SDC Composite Cathodes

Abstract

This paper reports the study of an anode-supported SOFC cell containing an LSCF-SDC composite cathode. The SOFC cell was tested at different temperatures and reactant flow rates. After testing, the cell was sectioned and characterized using SEM/EDS. Such analysis indicated that no structural damage and no significant interdiffusion of elements among the layers occurred. The measured electrochemical performance data at different temperatures indicate an Arrhenius behavior or temperature activated processes. The low-porosity anode functional layer appears to be very sensitive to low hydrogen contents. The electrochemical performance is also affected by changing air flow rates.

BaCO3 Nanoparticles-Modified Composite Cathode with Improved Electrochemical Oxygen Reduction Kinetics for High-Performing Ceramic Fuel Cells

“…Recently, wide efforts have been devoted to surface modification of cathode materials via solution-based infiltration for enhancing the performance of SOFCs [19][20][21][22]. Several suitable catalysts/materials have been investigated for surface modifications of LSCF|LSCF-GDC cathode materials to enhance the ORR activity, including mixed ionic-electronic conductors (MIECs) [23][24][25], noble metals [26,27], and transition metal oxides [28][29][30][31].…”