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Chemical Sensors: Simulation and Modeling Volume 5: Electrochemical Sensors by Ghenadii Korotcenkov

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CHAPTER 2

SOLID-STATE ELECTROCHEMICAL GAS SENSORS

C. O. Park

I. Lee

D. R. Lee

J. W. Fergus

N. Miura

H. J. Yoo

1.  INTRODUCTION

The solid-state electrochemical method is a selective and accurate way of sensing chemical species in various environments, including liquid metals, for an extended period of time. Since the first interpretation of the ionic conduction mechanism in zirconia (Wagner 1943), there have been major advances in solid-state ionic materials, from which numerous solid electrochemical sensors have been made. The most successful sensor may be the zirconia-based emission-control sensor (EGO sensor) for the automobile engine, which ...

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