This study is focused on the e
lectrochemica
l performance of perovskite-type materia
ls based on dopedLaGaO
3 (LGO). La
0.9Sr
0.1Ga
0.8Mg
0.2O
3-lta.gif" BORDER=0 > (LSGM) and La
0.9Sr
0.1Ga
0.8Mg
0.115Co
0.085O
3-lta.gif" BORDER=0 > (LSGMCo) wereused as e
lectro
lytes and La
0.8Sr
0.2MnO
3-lta.gif" BORDER=0 > (LSM) and La
0.75Sr
0.25Cr
0.5Mn
0.5O
3-lta.gif" BORDER=0 > (LSCM) as cathode andanode materia
l, respective
ly. Much better performance was obtained at an LSGM e
lectro
lyte than atLSGMCo, probab
ly due to interfacia
l reactions between LSGMCo and LSM. An LSGM e
lectro
lyte wasprepared by tape casting with a thickness of about 120
m and good va
lues of power output in aconventiona
l e
lectro
lyte-supported ce
ll were achieved, 425 and 570 mW/cm
2 using wet 5% H
2/Ar andpure hydrogen as fue
l, respective
ly, and pure O
2 as oxidant at 1073 K.