The symmetric cell was tested at 500 and 550 °C in an atmosphere consisting of N2 and O2 with an oxygen partial pressure pO2 = 60%. The experimental data for each temperature was regressed against a 2×ZARC (the best-fitting parameters are reported in Table ). The regressed ECM and deconvolved fGP-DRT model match closely, as shown in Figure (a) and (b). Figure ) and (d) present the DRT recovered using the fGP-DRT model and the ECM at 500 and 550 °C, respectively. The two models appear to be consistent with small deviations in the DRT for 𝜏 > 100 s.