Solid Alkaline Fuel Cell Composed of Layered Perovskite-Type Oxide LaSr3Fe3O10

In the present study, solid alkaline fuel cell composed of layered perovskite-type oxide LaSr 3 Fe 3 O 10 was studied. LaSr 3 Fe 3 O 10 showed OH - conduction and activity for oxygen reduction reaction. We prepared LaSr 3 Fe 3 O 10 with various bulk density by sintering at 900, 1100, 1200, 1400, and 1600ºC. When the bulk density increased from 4.03 (sintered at 900ºC) to 4.16 g cm -3 (sintered at 1100ºC), the output power and open circuit voltage increased greatly. However, when the bulk was higher than 4.16 g cm -3 , output power decreased with an increase in bulk density.