Abstract
A new type of NOx sensor, combining with thick LSM95 ((La0.8Sr0.2)0.95MnO3) reference electrode, thin 8YSZ (8 %mol Y2O3-doped ZrO2) electrolyte, and thin LSM95 sensing electrode, is prepared by tape casting, lamination, and co-firing. Comparison of sensitivity and selectivity of sensors sintered at various temperatures; the results indicate that the sensor sintered at 1225 °C exhibits a desirable sensitivity (40.71 mV/decade) and excellent selectivity. Besides, high resistances to water vapor, oxygen, and carbon dioxide of sensor response are discovered. The characteristics of X-ray diffraction (XRD), scanning electron microscopy (SEM), and pore size distribution reveal that the co-firing temperature of LSM95 and 8YSZ plays a significant role on sensing performance.
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This work was financially supported by Educational Commission of Zhejiang Province of China (Y201326606), National Natural Science Foundation of China (5161556), and National Natural Science Foundation of China (61471210).
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Zou, J., Liu, X., Jin, H. et al. NO2 sensing properties of electrode-supported sensor by tape casting and co-firing method. Ionics 21, 2655–2662 (2015). https://doi.org/10.1007/s11581-015-1430-2
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DOI: https://doi.org/10.1007/s11581-015-1430-2