Single Chamber Solid Oxide Fuel Cell Constructed from an Yttria-Stabilized Zirconia Electrolyte

摘要

A single chamber cell constructed from an yttria-stabilized zirconia solid electrolyte with a nickel anode and astrontium-doped lanthanum manganese oxide (La0.8Sr0.2MnO3)cathode can generate an electromotive force (emf) of 795 mVand a power density of 121 mW cm-2 in a mixture of methane andair at a flow rate of 300 mL min-1 and 950℃. The simultaneousadditions of 25 wt % gadolinium-doped cerium oxide(Ce0.8Gd0.2O1.9) and 15 wt % manganese oxide (MnO2) to theanode and cathode, respectively, further increased the emf to 833mV and the power density to 162 mW cm-2.