Characterization of Ln0.5M0.5FeO3–δ (Ln=La, Nd, Sm; M=Ba, Sr) perovskites as SOFC cathodes

Influence of alkaline-earth metal substitution on structure, electrical conductivity and oxygen transport properties of perovskite-type oxides La0.6A0.4FeO3−δ(A = Ca, Sr and Ba)

“…Crystal structure and phase transitions LBF64 appears to be cubic (space group Pm% 3m) with a = 3.93652(2) Å, matching precisely the value a = 3.93652(9) Å found for La 0.5 Ba 0.5 FeO 3Àd reported by Ecija et al 28 HT-XRD patterns of LCF64, LSF64 and LBF64 are shown in Fig. S1 (ESI †).…”

A Review on Perovskite-Type LaFeO3 Based Electrodes for CO2 Reduction in Solid Oxide Electrolysis Cells: Current Understanding of Structure–Functional Property Relationships

“…It must be noted that there have been only a few studies regarding LaFeO 3 , while many doped derivatives have been widely studied. Figure shows cations that have been successfully added to LaFeO 3 and which sites (La or Fe) they were determined to occupy. ,− To our best of knowledge, the local structure of undoped LaFeO 3 has not yet been investigated, most likely due to the complexity of magnetic neutron total scattering.…”

Synthetic Methods for Perovskite Materials; Structure and Morphology

“…The (La 1−x Sr x )FeO 3-δ (LSF) perovskite system exhibits high electronic and oxide ion conductivities at high temperatures, which make it attractive for solid oxide fuel cell (SOFC) cathodes. Several works (Ecija et al, 2011;Rodríguez-Martínez & Attfield, 1996;Vidal et al, 2007 and references therein) have shown that the physical properties of these perovskite materials are very sensitive to changes in the doping level (x) the average size of the A cations (<r A >) and the effects of A cation size disorder (σ 2 (r A )).…”