Sol-gel processed NASICON-type with new compositions in the Na3Zr2-(x/4)Si2-xP1+xO12 system showed an improved sinterability with an increase in the x value. This is attributed to liquid phase sintering. This dense electrolyte system is suitable for the application as gas sensors. The CO2 gas sensors using highly dense x = 0.667 (sample B) and x = 1.333 (sample C) samples show a stable EMF response in dry atmosphere which is very close to the theoretical value. Although a lower sensitivity and slower response were obtained in humid CO2 gas, the sensor performance recovered after switching from humid gas to dry gas.
Di Bartolomeo, E., Traversa, E., Montanaro, L., Aono, H., Sadaoka, Y. (2000). Influence of humidity on electrochemical CO2 sensors based on sol-gel processed NASICON with new compositions. JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY, 19(1-3), 181-185 [10.1023/A:1008719801695].
Influence of humidity on electrochemical CO2 sensors based on sol-gel processed NASICON with new compositions
Di Bartolomeo, E.;Traversa, E.
;
2000-01-01
Abstract
Sol-gel processed NASICON-type with new compositions in the Na3Zr2-(x/4)Si2-xP1+xO12 system showed an improved sinterability with an increase in the x value. This is attributed to liquid phase sintering. This dense electrolyte system is suitable for the application as gas sensors. The CO2 gas sensors using highly dense x = 0.667 (sample B) and x = 1.333 (sample C) samples show a stable EMF response in dry atmosphere which is very close to the theoretical value. Although a lower sensitivity and slower response were obtained in humid CO2 gas, the sensor performance recovered after switching from humid gas to dry gas.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
