Ceramic electrolytes and electrochemical sensors

The electrochemical method involving solid electrolytes has been known as a selective and an accurate way of sensing chemical species in the environment and even in liquid metal for some time. The most successful among the electrochemical sensors are the emission control sensor (λ-sensor) for the au...

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Bibliographic Details
Published in:Journal of materials science 2003-12, Vol.38 (23), p.4639-4660
Main Authors: Park, C O, Akbar, S A, Weppner, W
Format: Article
Language:English
Subjects:
Automotive engines
Carbon dioxide
Chemical sensors
Electrical measurement
Electrolytes
Emissions control
Liquid metals
Materials science
Molten salt electrolytes
Organic chemistry
Oxygen probes
Sensors
Solid electrolytes
Steel making
Zirconium dioxide
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Summary:The electrochemical method involving solid electrolytes has been known as a selective and an accurate way of sensing chemical species in the environment and even in liquid metal for some time. The most successful among the electrochemical sensors are the emission control sensor (λ-sensor) for the automobile engine and the oxygen sensor used in steelmaking, both made of stabilized zirconia. This article presents an overview of basic principles of various types of electrochemical sensors including active (potentiometric) and passive (amperometric) sensors. Recent advances in oxygen (O2), carbon dioxide (CO2) and hydrogen (H2) sensors are also presented.
ISSN:0022-2461
1573-4803
DOI:10.1023/A:1027454414224