Diffusion and Gas Conversion Analysis of Solid Oxide Fuel Cells at Loads via AC Impedance
Figure 4
Nyquist plot of a planar fuel cell operating at 800°C and 52 mA cm−2 and fed with 3% H2O, 45% H2, and balance N2. The cell has been fitted to two different equivalent circuits: one with three RC circuits (simple fit) and the other with four (best fit).
