Oxygen ion conductivity and cell performance of La0.9Ba0.1Ga1-xMgxO3-delta electrolyte

Choi SM; Lee KT; Kim S; Chun MC; Lee HL

Solid State Ionics, Vol.131, No.3-4, 221-228, 2000

DOI10.1016/S0167-2738(00)00673-1 Export Citation

Oxygen ion conductivity and cell performance of La0.9Ba0.1Ga1-xMgxO3-delta electrolyte

La0.9Ba0.1Ga0.8Mg0.2O3-delta, an alternative electrolyte candidate for the ceramic fuel cell, exhibits an oxygen ion conductivity higher than 0.1 S/cm at 800 degrees C. The maximum power density of the single cell Ni/electrolyte composite anode/La0.9Ba0.1Ga0.8Mg0.2O3-delta electrolyte/Sm0.5Sr0.5CoO3-delta cathode system was measured as 0.21 W/cm(2) at 1000 degrees C.

Keywords:DOPED LANTHANUM GALLATE;FUEL-CELLS;ELECTRICAL-PROPERTIES;LAGAO3 PEROVSKITE;OXIDE;STRONTIUM;MAGNESIUM