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Conductometric NOx Dosimeter to Detect Very Low NOx Concentrations : Comparison with Established Sensing Devices

Title data

Marr, Isabella ; Moos, Ralf:
Conductometric NOx Dosimeter to Detect Very Low NOx Concentrations : Comparison with Established Sensing Devices.
2016
Event: The 16th International Meeting on Chemical Sensors, IMCS 2016 , 10th - 13th July 2016 , Jeju, Korea.
(Conference item: Conference , Speech )

Abstract in another language

Increasingly stringent environmental requirements where the limits are mostly given as hourly mean values demand reliable low analyte detecting gas sensors. The continuous operation of a conductometric gas dosimeter enables the detection of NOx concentrations down to 20 ppb by selective accumulation. During NOx sorption the conductivity of the sensitive material changes irreversibly. In absence of NOx, the conductivity remains constant. After an actively initiated thermal regeneration, the new sorption phase starts. The actual NOx concentration is given by the timely derivative of the sensor signal. In further experiments, the conductometric NOx dosimeter was compared with commercially available NO2 sensors, following different principles. With the conductometric NOx dosimeter, the main drawbacks of conventional gas sensors can be avoided.

Further data

Item Type: Conference item (Speech)
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
Profile Fields > Advanced Fields > Advanced Materials
Research Institutions > Research Centres > Bayreuth Center for Material Science and Engineering - BayMAT
Research Institutions > Research Units > ZET - Zentrum für Energietechnik
Research Institutions > Research Units > BERC - Bayreuth Engine Research Center
Faculties
Profile Fields
Profile Fields > Advanced Fields
Research Institutions
Research Institutions > Research Centres
Research Institutions > Research Units
Result of work at the UBT: Yes
DDC Subjects: 600 Technology, medicine, applied sciences > 620 Engineering
Date Deposited: 25 Jul 2016 11:17
Last Modified: 25 Jul 2016 11:17
URI: https://eref.uni-bayreuth.de/id/eprint/33634