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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.

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 [10.1016/j.snb.2005.11.070].

CO sensing with SnO2-based thick film sensors: Surface state model for conductance responses during thermal-modulation

FORT, ADA;ROCCHI, SANTINA;MUGNAINI, MARCO;VIGNOLI, VALERIO;ATREI, ANDREA MASSIMO;
2006-01-01

Abstract

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.
2006
SENSORS AND ACTUATORS. B, CHEMICAL
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 [10.1016/j.snb.2005.11.070].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11365/21486
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