Electrochemical Performance Measurements of PBI-Based High-Temperature PEMFCs
Figure 7
Nyquist plot showing the effect of temperature on cathode mass transfer resistance in 5 wt.% PBI electrodes. Current: 0.1 A. stoichiometric ratio: 1.2; O2 stoichiometric ratio: 2; minimum flow: 0.2 L min-1; pressure: 1 atm; platinum loading (anode and cathode): 0.4 mg .