Fig. 7

(a) V-I polarization curve at H2 flow rate = 31, 41, 51 mL/min and 850 °C. (b) V-I polarization curve at H2 flow rate = 41 mL/min and 750, 800, 850 °C.

(a) V-I polarization curve at H2 flow rate = 31, 41, 51 mL/min and 850 °C. (b) V-I polarization curve at H2 flow rate = 41 mL/min and 750, 800, 850 °C.