INVESTIGATION OF GdBaCo2-xFexO5.5-δ AS A CATHODE MATERIAL FOR INTERMEDIATE TEMPERATURE SOLID OXIDE FUEL CELLS

In this work, we present an evaluation of the layered perovskite materials with chemical composition GdBaCo 2-x Fe x O 5.5-δ (x = 0.0, 0.3, 0.6) as a cathode materials for intermediate temperature solid oxide fuel cell (IT-SOFC). We first present results concerning their crystal structure and oxygen nonstoichiometry, and then give results concerning their electrical conductivity and performance in button-type SOFCs.