Fig. 7. Impedance response of single cells fabricated using BSCF6482 in the temperature range of 700–800 °C under: (a) anodic potential of 0.8 V (+) and (b) cathodic potential of 0.8 V (−). The activation energy plot for associated polarizations (Ro, Rp and RCT) for anodic (a1) and cathodic (b1) potential. Nyquist plots for the single cells with BSCF6482 as the active electrocatalyst at an operating temperature of 800 °C as a function of applied potentials (0.4 V–1.0 V) for (c) anodic (OER) and (d) cathodic (ORR) bias.
