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Selective Mixed Potential Ammonia Exhaust Gas Sensor

Title data

Schönauer-Kamin, Daniela ; Moos, Ralf ; Fleischer, Maximilian ; Wiesner, Kerstin:
Selective Mixed Potential Ammonia Exhaust Gas Sensor.
Event: The 12th International Meeting on Chemical Sensors, IMCS 12 , 13.-16.06.2008 , Columbus, Ohio, USA.
(Conference item: Conference , Other Presentation type)

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Abstract in another language

The present work describes a novel selective NH3 sensor principle with a high potential for longterm stability in harsh exhaust environments. The sensor is based on the well-known mixed potential effect. In contrast to common sensors, the electrode functionalities electrical conductivity and selective catalytic activity combined with long-term stability are separated. Therefore, one of the two electrodes is covered by a well-known porous SCR catalyst material, which has been developed for exhaust gas SCR applications. Two SCR coatings (Fe-ZSM5 and vanadia-tungsten oxide-titania) are investigated. The resulting sensor signal depends semi-logarithmically on ammonia. The NO cross-sensitivity is marginal.

Further data

Item Type: Conference item (Other)
Refereed: Yes
Institutions of the University: Faculties > Faculty of Engineering Science
Faculties > Faculty of Engineering Science > Chair Functional Materials > Chair Functional Materials - Univ.-Prof. Dr.-Ing. Ralf Moos
Faculties > Faculty of Engineering Science > Chair Functional Materials
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 Institutions > Research Centres
Result of work at the UBT: Yes
DDC Subjects: 600 Technology, medicine, applied sciences > 620 Engineering
Date Deposited: 02 Jun 2015 07:16
Last Modified: 19 Apr 2018 02:48