Electrical Properties of a CeO₂-Bi_𝟐O_𝟑Mix System Elaborated at 600^∘C

Figure 3

Nyquist plots of impedance analyses at 400°C for the system (1−𝑥)CeO₂·(𝑥/2)Bi₂O₃. Depletion angles of Nyquist circles are visible. The low-frequency signals are associated with Warburg-like behaviors. (a) 0<𝑥<0.3; (b) 0.3<𝑥<0.7; (c) 0.7<𝑥<1.

(a)

(b)

(c)