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

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CHAPTER 5

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CONDUCTANCE TRANSIENT ANALYSES OF METAL OXIDE GAS SENSORS ON THE EXAMPLE OF SPINEL FERRITE GAS SENSORS

K. Mukherjee

S. B. Majumder

1. INTRODUCTION

This chapter deals with the analyses of resistance/conductance transients (during reducing-gas sensing) of semiconducting metal oxide (SMO)–based sensing elements using the example of spinel ferrite–based sensors. Spinel ferrites have been investigated recently by several research groups, and it has been demonstrated that ferrite-based gas sensors not only yield excellent response but also that some of them exhibit reasonably good selectivity toward a specific gas type (Zhang et al. 2007; ...

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