Electrochemical stability of La0.6Sr0.4Co0.2Fe0.8O3−δ-infiltrated YSZ oxygen electrode for reversible solid oxide fuel cells

High performance solid oxide electrolysis cell with impregnated electrodes

“…2(a) 1.06 and 0.60 A cm −2 at the temperatures of 800°C, 750°C, 700°C and 650°C, respectively, which are comparable performances to other SOECs. For example, a Ni-YSZ electrode supported SOEC with La 0.6 Sr 0.4 Co 0.2 Fe 0.8 O 3 − δ (LSCF) impregnated YSZ oxygen electrode exhibited a current density of 1.14 A cm − 2 at 1.3 V and 800°C [17], while another hydrogen electrode (Ni-YSZ) supported cell with an impregnated Sm 0.5 Sr 0.5 CoO 3 oxygen electrode demonstrated a current density of 1.8 A cm −2 at 1.3 V and 750°C [18]. Since electrode microstructure exhibits a significant effect on electrolytic performance [19], the remarkable performance reported here may be due to the micro or nano structure of the cell electrodes leading to high porosity and an increase in triple phase boundaries which promote gas diffusion and electrochemical reactions [20].…”

Recent Progresses in Electrocatalysts for Water Electrolysis

“…The LSCF is another important class of perovskites used as electrode materials for both SOFCs and SOECs [216][217][218][219]. For example, Fan et al [219] reported an infiltration method for the development of La 0.6 Sr 0.4 Co 0.2 Fe 0.8 O 3−σ (LSCF)-YSZ (yttria-stabilized zirconia) as an oxygen electrode.…”

“…For example, Fan et al [219] reported an infiltration method for the development of La 0.6 Sr 0.4 Co 0.2 Fe 0.8 O 3−σ (LSCF)-YSZ (yttria-stabilized zirconia) as an oxygen electrode. In this study, SEM micrographs showed that the unmodified Y 2 O 3 -stabilized zirconia (YSZ) backbone possessed a clean surface and clearly visible grain boundaries (Fig.…”

“…j Plots of voltage and power density versus current density curves. l Nyquist electrochemical impedance spectra (EIS) plots at open circuit [219]. k-m EIS analyses of BSCF and ASR comparisons with other oxygen electrodes [215] been explored and have shown promise as a support for Ptbased nanoparticles (NPs) with additional treatment, such as nitrogen doping, which can activate the pie electrons in the conjugated carbon, as shown in Fig.…”

Microstructure and Polarization Studies on Interlayer Free La0.65Sr0.3Co0.2Fe0.8O3–δ Cathodes Fabricated on Yttria Stabilized Zirconia by Solution Precursor Plasma Spraying

“…This approach is reported to be advantageous as it avoids the reaction between LSCF and YSZ due to the low temperature fabrication and its ability to achieve a nano-structured coatings [29]. Degradation in the performance on prolonged operation, if any, has been primarily attributed to the nano particle coarsening/flattening and not to the interaction between LSCF and YSZ [22][23][24][25]. Degradation in the performance on prolonged operation, if any, has been primarily attributed to the nano particle coarsening/flattening and not to the interaction between LSCF and YSZ [22][23][24][25].…”