Performance Of La(0.6)Sr(0.4)Co(1-Y)Fe(Y)O3 (Y=0.2, 0.5 And 0.8) Nanostructured Cathodes For Intermediate-Temperature Solid-Oxide Fuel Cells: Influence Of Microstructure And Composition

We investigated the electrochemical properties of Co-Fe perovskites, which can be used as cathodes for intermediate-temperature solid-oxide fuel cells (IT-SOFCs). We studied the electrochemical properties of nanostructured mixed ionic-electronic conductors for IT-SOFC cathodes with compositions of La0.6Sr0.4Co1-yFeyO3 (y=0.2, 0.5 and 0.8). We analyzed the performance of two types of nanostructures: nanorods and nanotubes. Our results show that the electrochemical performance is highly influenced by the form of nanostructure, whereas the effect of composition is less significant. (C) 2015 Elsevier Ltd and Techna Group S.r.l. All rights reserved.