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Method for detection of NOx in exhaust gases by pulsed discharge measurements using standard zirconia-based lambda sensors

Title data

Fischer, Sabine ; Pohle, Roland ; Farber, Boris ; Proch, Ronne ; Kaniuk, J. ; Fleischer, Maximilian ; Moos, Ralf:
Method for detection of NOx in exhaust gases by pulsed discharge measurements using standard zirconia-based lambda sensors.
In: Sensors and Actuators B: Chemical. Vol. 147 (2010) Issue 2 . - pp. 780-785.
ISSN 0925-4005
DOI: https://doi.org/10.1016/j.snb.2010.03.092

Official URL: Volltext

Abstract in another language

Presented is a measurement approach to differentiate reliably exhaust gas components using standard zirconia-based thimble-type potentiometric lambda sensors. A self-discharge characteristic after applying different voltage pulses between the sensor electrodes is used as a measurement parameter which depends on the gas component and its concentration in the exhaust. The detection of NO in the lower ppm range is demonstrated. In addition, this approach allows significant improvements in the response and selectivity to NO compared to other investigated gases such as H2, C2H5OH, and a mixture of hydrocarbons. Therefore, this technique seems to be capable of enabling NO sensing in combustion exhaust with improved selectivity using standard lambda sensors.

Further data

Item Type: Article in a journal
Refereed: Yes
Institutions of the University: Faculties > Faculty of Engineering Science
Faculties > Faculty of Engineering Science > Chair Functional Materials
Faculties > Faculty of Engineering Science > Chair Functional Materials > Chair Functional Materials - Univ.-Prof. Dr.-Ing. Ralf Moos
Research Institutions > Research Units > BERC - Bayreuth Engine Research Center
Faculties
Research Institutions
Research Institutions > Research Units
Profile Fields > Advanced Fields > Advanced Materials
Research Institutions > Research Centres > Bayreuth Center for Material Science and Engineering - BayMAT
Profile Fields
Profile Fields > Advanced Fields
Research Institutions > Research Centres
Result of work at the UBT: Yes
DDC Subjects: 600 Technology, medicine, applied sciences > 620 Engineering
Date Deposited: 21 Jan 2015 10:40
Last Modified: 12 Apr 2016 06:52
URI: https://eref.uni-bayreuth.de/id/eprint/5658