LAUSR

Abstract In the present work, the materials of a new composite system based on Sr2(Ni,Mg)MoO6 and SrMoO4 were for the first time synthesized, comprehensively characterized and proposed as anodes for solid oxide fuel cells. The basic Sr2Mg1–xNixMoO6–δ and SrMoO4 components (where x = 0.25, 0.5 and 0.75) were separately synthesized by the aid of a combustion synthesis method, then mixed in appropriate molar ratios and sintered to obtain the (1−y)Sr2Mg1–xNixMoO6–δ – ySrMoO4 composites (where y = 0, 0.15 and 0.3). The phase structure, microstructure, thermal and electrical properties were thoroughly investigated not only for the materials obtained after sintering, but also for the reduced composites. The obtained results allow one to conclude that the developed composites can be considered as perspective fuel electrodes of solid oxide electrochemical cells, owing to their chemical and thermal stabilities in both oxidizing and reducing atmospheres as well as desirable electrical properties.