There exists a strong interest in developing simplified models able to predict the SnO2 sensor response and aiming at a better comprehension of the mechanisms involved with sensing operation. In this paper, a simple grey-box model is proposed for predicting, with a good approximation (r.m.s. error < 10%), the behavior of some commercial SnO2-based sensors in presence of oxygen and a reducing gas (CO) during fast temperature variations. Auger electron spectroscopy (AES) permitted to highlight differences in the surface composition of the sensors after extended operation time.
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|Titolo:||CO sensing with SnO2-based thick film sensors: Surface state model for conductance responses during thermal-modulation|
|Citazione:||Fort, A., Rocchi, S., Mugnaini, M., SERRANO SANTOS, M.B., Vignoli, V., Atrei, A.M., et al. (2006). CO sensing with SnO2-based thick film sensors: Surface state model for conductance responses during thermal-modulation. SENSORS AND ACTUATORS. B, CHEMICAL, 116(1-2), 43-48.|
|Appare nelle tipologie:||1.1 Articolo in rivista|