Diffusion and Gas Conversion Analysis of Solid Oxide Fuel Cells at Loads via AC Impedance
Figure 3
Nyquist plot of the total cell compared with the sum of the individual anode and cathode spectra for a button cell operating at 750°C and 175 mA cm−2 and fed with 3% H2O and balance H2. A large low-frequency arc is unique to the measured total-cell impedance.
