fig9
![Optimizing the energy storage performance of NaNbO<sub>3</sub> ceramics by rare-earth-based composite perovskite Sm(Mg<sub>0.5</sub>Zr<sub>0.5</sub>)O<sub>3</sub> modification](https://image.oaes.cc/4b623cc5-91f8-4cb6-a3ed-f2492c1344ef/microstructures3019.fig.9.jpg)
Figure 9. Impedance diagram of NN-SMZ ceramics. (A) x = 0.05, (B) x = 0.08, (C) x = 0.12, and (D) x = 0.15. (E) Impedance diagram of NN-SMZ components at 560 °C, (F) Band gap energy for NN-SMZ ceramics, (G) The fitted activation energy of NN-SMZ.