Solid Oxide Fuel Cells

TL;DR: A lumina added Y-FSZ (AAZ) is a stable solid oxide fuel cell electrolyte.

Abstract: The e f f e c t o f a lu m in a a d d i t i o n s t o y t t r i a f u l l y s t a b i l i z e d z i r c o n i a (Y-FSZ) h a s b e e n s t u d i e d on t h e m ic r o s t r u c tu r e , e l e c t r i c a l r e s i s t i v i t y , m ec h an ic a l s t r e n g th and f u e l c e l l p e rfo rm a n ce . A lum ina added Y-FSZ (AAZ) was j u s t a p h y s i c a l m ix t u r e . The g r a i n s i z e o f Y-FSZ i n AAZ re d u ce d w ith in c r e a s e in a lu m in a c o n te n t . The e l e c t r i c a l r e s i s t i v i t y o f AAZ in c r e a s e d w ith re d u c in g th e g r a in s i z e o f Y-FSZ and w ith in c r e a s e i n volum e f r a c t i o n o f a lu m in a . The m ec h an ic a l s t r e n g th o f AAZ in c r e a s e d w ith in c r e a s e in a lu m in a c o n t e n t an d was r e l a t e d t o t h e g r a i n s i z e o f a lu m in a . The f u e l c e l l p e rfo rm an ce was d e te rm in e d by th e e l e c t r i c a l r e s i s t i v i t y o f AAZ, and AAZ was v e ry s t a b l e f o r u se i n SOFC. T hese r e s u l t s in d ic a te t h a t a lu m in a a d d i t io n to Y-FSZ c o u ld p ro v id e a s e l f s u p p o r te d SOFC e l e c t r o l y t e .