1st Edition

Electrochemistry of Zirconia Gas Sensors

By Serge Zhuiykov Copyright 2007
    316 Pages 113 B/W Illustrations
    by CRC Press

    The first book to present a detailed analysis of the electrochemistry, development, modeling, optimization, testing, and technology behind modern zirconia-based sensors, Electrochemistry of Zirconia Gas Sensors explores how to tailor these sensors to meet specific industrial needs. The book addresses a range of different stages of development in zirconia-based sensors for gaseous and molten metal environments, focusing on an accessible form from analysis of interaction at the measuring environment-zirconia sensor interface to reliability testing of the sensors.

    The coverage highlights different fundamental aspects of electrochemistry and physical chemistry of zirconia, mathematical modeling, optimization parameters, and structures of the electrode materials. The author highlights the factors that determine high sensitivity, critically reviews the limitations of current technologies, and surveys the needs and possibilities of future developments. He covers technologies for vacuum-tight joining zirconia to ceramic insulators and sensor construction materials as well as sensor design and concepts of the total-NOx sensor based on mixed potential. The book includes a critical overview of existing technologies of zirconia gas sensors including nanotechnology.

    This book fills the gap between pure academic research of the zirconia-based gas sensors, explaining the influence of the double electrical layer on the sensor output signal and the applied, technological, down-to-earth approaches adopted by the vast majority of the industrial companies working in this field. Providing guidance on how to organize a testing program of gas sensors, the book allows readers to look forward in evaluating future trends in the zirconia gas sensors development.

    INTRODUCTION TO ELECTROCHEMISTRY OF SOLID ELECTROLYTE GAS SENSORS
    Electrochemistry of Zirconia Solid Electrolytes as the Basis for Understanding Electrochemical Gas Sensors
    ElectroPhysical Properties of Solid Electrolytes
    Aging of Solid Electrolytes
    An Electron Model of Solid Oxygen-Ionic Electrolytes Used in Gas Sensors
    Electrode Processes in Solid Electrolyte Sensors
    References

    MATHEMATICAL MODELING OF ZIRCONIA GAS SENSORS WITH DISTRIBUTED PARAMETERS
    Complete Mathematical Model of Electrochemical Gas Sensors
    Modeling Interactions of Oxygen with Nernstian Zirconia Sensor
    Modeling Interactions of Various Gases with Non-Nernstian Zirconia Sensors
    Numerical Mathematical Models of Zirconia Gas Sensors
    Identification Parameters of Mathematical Models
    Verification Adequacy of Mathematical Models to Real Gas Sensors
    Nomenclature
    References

    METROLOGICAL CHARACTERISTICS OF NON-NERNSTIAN ZIRCONIA GAS SENSORS
    Non-Nernstian Zirconia Gas Sensors
    Mixed-potential NOx Sensors
    Mixed-potential Hydrocarbon Sensors
    Impedance-based Zirconia Gas Sensors
    Future Trends
    References

    ZIRCONIA SENSORS FOR MEASUREMENT GAS CONCENTRATION IN MOLTEN METALS
    Zirconia Sensors for the Measurement of Oxygen Activity in Melts
    Impedance Method for the Analysis of in-situ Diagnostics and the Control of an Electrolyte/Liquid-metal Electrode Interface
    Measuring Oxygen Concentration in Lead-Bismuth Heat Carriers
    Regulation of Oxygen Partial Pressure in Melts by Zirconia Pumps
    References

    MANUFACTURING TECHNOLOGIES OF ZIRCONIA GAS SENSORS
    Vacuum-Tight Technologies of Joining Zirconia to Ceramic Insulators
    Vacuum-Tight Technologies of Joining Zirconia to Sensor Construction Materials
    Nanotechnologies for Zirconia Gas Sensors
    Limitations of Existing Technologies and Future Trends
    References

    ERRORS OF MEASUREMENT OF ZIRCONIA GAS SENSORS
    Bases of Errors Theory in Relation to Electrochemical Gas Sensors
    Analysis Systematic Errors of Zirconia Gas Sensors
    Analysis of the Main Components of Errors of Zirconia Gas Sensors
    Calculation of Errors on the Basis of Experimental Data
    References

    ORGANIZATION AND PLANNING OF TESTING ZIRCONIA SENSORS
    Main Principles of Zirconia Sensors Testing
    Planning of Experiments
    Reliability Testing of Zirconia Gas Sensors
    References
    Index

    Biography

    Serge Zhuiykov

    "Overall, this book is a very good compilation of a body of knowledge of the past 30-40 years on the technology of zirconia gas sensors."

    – Pritish Kar, Lam Research Corporation, in JOM, September 2008