Nitrogen-monoxide sensing with a commercial zirconia lambda gauge biased in amperometric mode

One of the most promising principles for NO sensing in automotive exhaust gases relies on amperometric sensors based on zirconia. Investigation of a Bosch LSH6-type gauge mounted amperometrically showed that its sensitivity to NO was comparable to that for oxygen when the external spinel-coated elec...

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Bibliographic Details
Published in:Measurement science & technology 2000-03, Vol.11 (3), p.212-220
Main Authors: Coillard, Véronique, Juste, Laurence, Lucat, Claude, Ménil, Francis
Format: Article
Language:English
Subjects:
Electrical and electronic components, instruments and techniques
Exact sciences and technology
General equipment and techniques
Instruments, apparatus, components and techniques common to several branches of physics and astronomy
Physics
Sensors (chemical, optical, electrical, movement, gas, etc.)
remote sensing
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Summary:One of the most promising principles for NO sensing in automotive exhaust gases relies on amperometric sensors based on zirconia. Investigation of a Bosch LSH6-type gauge mounted amperometrically showed that its sensitivity to NO was comparable to that for oxygen when the external spinel-coated electrode was used as the cathode (direct bias). The disappearance of this sensitivity with a reverse bias demonstrates that MgAl\+v\2\-v\O\+v\4\-v\ plays a key role in the catalytic dissociation of NO. (Original abstract - amended)
ISSN:0957-0233
1361-6501
DOI:10.1088/0957-0233/11/3/307