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Detection of the ammonia loading of a Cu Chabazite SCR catalyst by a radio frequency-based method

Title data

Rauch, Dieter ; Kubinski, David J. ; Simon, Ulrich ; Moos, Ralf:
Detection of the ammonia loading of a Cu Chabazite SCR catalyst by a radio frequency-based method.
In: Sensors and Actuators B: Chemical. Vol. 205 (2014) . - pp. 88-93.
ISSN 0925-4005
DOI: 10.1016/j.snb.2014.08.019

Official URL: Volltext

Project information

Project title:
Project's official titleProject's id
No informationMO 1060/19-1

Project financing: Deutsche Forschungsgemeinschaft

Abstract in another language

Zeolites are in use as catalyst materials in the selective catalytic reduction of NOx with NH3 as reducing agent. An initial NH3-adsorption on the catalyst is essential for the reaction with NO and NO2 to occur. Due to the adsorbed NH3, the proton conductivity of the zeolite increases markedly. This change of the electrical properties of the catalyst material can be monitored in a contactless way and in operando using a radio frequency-based method to determine the ammonia loading on the catalyst. In this work, the ammonia storage is examined on a copper exchanged Chabazite Cu-SSZ-13, a typical SCR catalyst as it is in use for serial applications, at different temperatures and various feed ratios.

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 > Chair Functional Materials - Univ.-Prof. Dr.-Ing. Ralf Moos
Research Institutions > Research Units > BERC - Bayreuth Engine Research Center
Faculties
Faculties > Faculty of Engineering Science > Chair Functional Materials
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: 01 Dec 2014 08:32
Last Modified: 15 Apr 2016 07:54
URI: https://eref.uni-bayreuth.de/id/eprint/3842