High-temperature electronic transport properties of Fe-doped YBaCo2O5+δ

YBaCo2O5+δ as a new cathode material for zirconia-based solid oxide fuel cells

“…The results indicate the excellent electrical conduction of YBCO at lower temperature and the potential for further development in IT-SOFC and other applications. In YBCO perovskite, hole conductivity are associated with the presence of Co 4+ ions which is thermally induced by the charge disproportionation reaction 2Co 3+ → Co 2+ + Co 4+ [14]. The conductivity occurs through the hopping motion of such localized Co 2+ or Co 4+ states and usually shows a semiconductor-like behavior in the low temperature [5,11].…”

Cobalt based layered perovskites as cathode material for intermediate temperature Solid Oxide Fuel Cells: A brief review

“…[25,76], and in a minor extent Refs. [77,79]). Except for the results of Zhang et al (Table 12, Ref.…”

Oxygen Content and Thermodynamic Stability of YBaCo2O6−δ Double Perovskite

“…In this respect, YBaCo 2 O 6−δ has advantage as compared to other double perovskites since it has the lowest CTE among all REBaCo 2 O 6−δ oxides, which is close to that of doped ceria and zirconia, the state-of-the-art SOFC electrolytes [1][2][3][4][5][6]. is double perovskite was found to have the total conductivity high enough for using it as a cathode for IT SOFCs [6][7][8][9][10][11][12][13][14][15]. As a result, materials on the basis of YBaCo 2 O 6−δ showed high performance as cathodes of IT SOFCs [6,9,10,12,15] and oxygen permeable membranes [16,17].…”