Nanocrystalline Sm0.5Sr0.5CoO3−δ synthesized using a chelating route for use in IT-SOFC cathodes: Microstructure, surface chemistry and electrical conductivity

Thermal shock resistant composite cathode material Sm0.5Sr0.5CoO3–δ–La0.6Sr0.4FeO3–δ for solid oxide fuel cells

“…Indeed, XRD patterns of the prepared samples of SSC showed exclusively the lines characteristic to the perovskite structure of SSC [17] and the EDS analysis showed only Sm, Sr, and Ce. Similar slabs were observed by Su et al [21] as well as Scurtu et al [22] in the case of SSC-SDC composite, prepared with the use of the same reagents.…”

Characterization of B‐Site Niobium‐Doped Pr0.4Sr0.6 (Co0.3Fe0.6)1‐xNbxO3‐δ (x=0, 0.05, 0.1, 0.2) Perovskites as Cathode Materials for Solid Oxide Fuel Cells

“…In general, the active oxygen locating on the surface (the outermost few monolayers,∼2‐3 nm) and the lattice oxygen locating in the bulk (the following ∼4‐8 nm) are possible to be distinguished by XPS as the former one has the higher binding energy. Therefore, the lower binding energy for the O1s peaks at 528.2 eV and 528.4 eV for PSCF and PSCFN 0.1 respectively in Figure (a) were attributed to the lattice oxygen of the perovskite structure ,,. The small shift from 528.2 eV to 528.4 eV should be resulted from environmental difference of the O atoms.…”

B-site Mo-doped perovskite Pr0.4Sr0.6 (Co0.2Fe0.8)1−Mo O3− (x = 0, 0.05, 0.1 and 0.2) as electrode for symmetrical solid oxide fuel cell

“…[25] For a perovskite oxide, a distinct "surface-phase" (the outermost few monolayers,~2e3 nm) and "bulk-phase" (the following~4e8 nm) evidenced of the XPS investigations. [26,27] Therefore, the features of higher binding energies (BEs) (lower Kinetic Energies) can be attributed to "surface-phase" while the features associated with lower BEs are responsible for the "bulk-phase". [27] From Fig.…”

“…[26,27] Therefore, the features of higher binding energies (BEs) (lower Kinetic Energies) can be attributed to "surface-phase" while the features associated with lower BEs are responsible for the "bulk-phase". [27] From Fig. 8(a), the sample with x ¼ 0 showed a larger area at high BEs than x ¼ 0.1 sample, which indicates that Mo doping can decrease the amount of "surface-phase", which could be benefit for the promotion of catalytic performance of materials.…”