Shaping of thick films using BaSnO3 powders synthesized by Pechini and its electrical behavior for possible use as gas sensor

YASSER OCHOA; FEDERICO SCHIPANI; JORGE PÁEZ RODRIGUEZ; MIGUEL PONCE

Buenos Aires

Encuentro; 15 th International Meeting of Chemical Sensors; 2014

In this work, we synthesized BaSnO3 used Pechini method. We used this mixed oxide to shape ceramics pieces utilized slip casting process. A suspension with 57.6% in solids was forming mixed the powder ceramic synthesized with water and to guarantee its stability we added several PAA drops as deflocculant. The slurry was poured into a mold to obtain a green ceramics pieces with parallelogram form.   These thick films was sintered to 1350, 1450 y 1500°C during 3 hours. Ending, these sintered films we determined the electrical behavior of thick film if this was in contact with O2 atmosphere. The results showed that the film presented excellent electrical behavior and it could be applied as possible response as gas sensor.