Preparation and electrical properties of La0.4Sr0.6Ni0.2Fe0.8O3 using a glycine nitrate process

Influence of A‐Site Variation and B‐Site Substitution on the Physical Properties of (La,Sr)FeO3Based Perovskites

“…At lower calcination temperatures, secondary phases of LaFeO 3 and SrLaFeO 4 were detected as previously described in literature [11,[20][21][22]. (Figure 3) [11][12][13].…”

“…At temperatures around 800°C, it ranges between 50 and 120 S cm -1 and is thus lower than LSM, which reaches up to 200 S cm -1 at 950°C. In order to enhance the electrical conductivity of LSF, Fe was partly substituted by Ni and Cu as already mentioned by others [12][13][14][15][16].…”

Synthesis, electrical and electrochemical properties of Ba0.5Sr0.5Zn0.2Fe0.8O3−δ perovskite oxide for IT-SOFC cathode

“…However, these cobalt-based cathodes often suffer some problems like high thermal expansion coefficients (TECs) and high cost of cobalt element. In recent years, many cobalt-free perovskite-type materials were reported for the cathodes of IT-SOFC, such as La x Sr 1−x FeO 3−δ (LSF) [15,16], La x Sr 1−x Fe y Ni 1−y O 3−δ (LSNF) [17,18], Pr 0.7 Sr 0.3 Fe 1−x Ni x O 3−δ (PSFN) [19], La x Sr 1−x CuO 2.5−δ [20], etc. For example, the polarization resistance of the 40 wt% LSF-YSZ cathode was found to be approximately 0.1 cm at 700 • C [21].…”

Characterization and performance of cobalt-free perovskite-type La0.6Ba0.4Fe0.8Ni0.2O3 − δ cathode material for intermediate-temperature solid oxide fuel cells

“…Some researchers show that the electrical conductivities of LSF could be enhanced by substituting Fe by Ni [11]. Furthermore, the parallel substitution of Sr 2+ with Ba 2+ in the A site of LSF could promote the conductivity of lattice oxygen and reduce the effect of Cr depositions for solid oxide fuel cells with iron-chromium metallic interconnection [12,13].…”