Fe-based perovskite-type oxides as excellent oxygen-permeable and reduction-tolerant materials

Evaluation of Ba0.6Sr0.4Co0.9Nb0.1O3−δ mixed conductor as a cathode for intermediate-temperature oxygen-ionic solid-oxide fuel cells

“…These materials have potential applications such as dense ceramic membranes for oxygen separation from air or as membrane reactors for coupling the oxidation of light hydrocarbons to value-added products [1][2][3][4]. Many mixed conducting composite oxides have been developed for ceramic oxygen separation membranes with high oxygen permeability at elevated temperatures [5][6][7][8][9][10]. However, during the past decade, mixed conducting oxides have also received considerable attention as cathode materials of solid-oxide fuel cells (SOFCs) [11][12][13][14][15][16].…”

Double-site yttria-doped Sr1−xYxCo1−yYyO3−δ perovskite oxides as oxygen semi-permeable membranes

“…For most of the perovskite oxides possessing high ionic and electronic conductivity, they have unfortunately poor chemical and structural stability at reduced environments [18][19][20]. The stable phase structure of the materials is a pre-requirement for high and stable oxygen permeation flux [21][22][23], therefore it is of particular importance. The objective of this work is to exploit new perovskite-type oxides as MIEC membrane.…”

Synthesis and characterization of aluminum-doped perovskites as cathode materials for intermediate temperature solid oxide fuel cells

“…Therefore exploring alternative materials, in particular cobalt-free perovskite-type oxides, with high performance for IT-SOFCs at reduced temperature is of great interest. Up to now, much effort has been made to develop new cobaltefree cathode materials, including Ba x Sr 1-x FeO 3Àd [19], Pr x Sr 1-x FeO 3Àd [20], Ba 0.5 Sr 0.5 Fe 0.8 Zn 0.2 O 3Àd [18], Ba 0.5 Sr 0.5 Fe 0.8 Cu 0.2 O 3Àd [21], etc.…”