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Chemical Sensors: Simulation and Modeling Volume 2: Conductometric-Type Sensors by Ghenadii Korotcenkov

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CHAPTER 4

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SURFACE STATE MODELS FOR CONDUCTANCE RESPONSE OF METAL OXIDE GAS SENSORS DURING THERMAL TRANSIENTS

A. Fort

M. Mugnaini

S. Rocchi

V. Vignoli

1. INTRODUCTION

In the last decades a large amount of research work has been devoted to understanding the sensing mechanism of metal oxide gas conductometric sensors (Wang et al. 1995; Barsan and Weimar 2001, 2003; Korotcenkov 2008; Moseley et al. 2008; Pokhrel et al. 2008; Barsan et al. 2010, 2011; Yamazoe and Shimanoe 2010; Hübner et al. 2011a). Many results have been obtained with special reference to the most often used oxides such as, e.g., SnO2 (Barsan and Weimar 2001; Barsan et al. 2011) ...

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