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. 2021 Nov 24;12:6814. doi: 10.1038/s41467-021-26739-1

Fig. 5. Electrochemical performance measurements.

Fig. 5

a, b Comparison of the maximum power density values at 800 °C in H2. (a) in terms of Pr0.5Ba0.5−xSrxFeO3−δ compositions (x = 0, 0.3, and 0.5) and b of the present work and other LSGM electrolyte-supported studies with symmetrical cell configuration at various temperature regimes. c I–V curves and the corresponding power densities of symmetrical cell with (Pr0.5Ba0.2Sr0.3)2FeO4+δ – Fe metal (R-PBSF30) fuel electrode at 800 °C under H2 and C3H8 humidified fuels (3% H2O) fed on the fuel electrode and air fed on the air electrode. d, e Durability test of symmetrical cell with R-PBSF30 fuel electrode recorded with respect to time at a constant voltage of 0.6 V at 700 °C under d H2 and e C3H8 humidified fuels. f I–V curves for symmetrical cell with R-PBSF30 fuel electrode with humidified H2 and CO2 with H2O co-fed to the fuel electrode side and air fed to the air electrode. g Durability test of symmetrical cell with R-PBSF30 fuel electrode recorded at a constant current of −0.25 A cm−2 at 700 °C during co-electrolysis for 100 h.