Figure 5
Impedance spectra, Nyquist plots (a, b) and Bode plots (c, d) measured on the fuel cell in the spectroelectrochemical cell at 863 K and 873 K in 21% O2 in He (a, c), and on the thin-film cell, measured in the EIS set-up at 873 K and 898 K in 100% O2 (b, d). Rs and Rp are illustrated on the impedance spectrum at 883 K (a). |