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Zeolite cover layer for selectivity enhancement of p-type semiconducting hydrocarbon sensors

Title data

Sahner, Kathy ; Schönauer-Kamin, Daniela ; Kuchinke, Petra ; Moos, Ralf:
Zeolite cover layer for selectivity enhancement of p-type semiconducting hydrocarbon sensors.
In: Sensors and Actuators B: Chemical. Vol. 133 (August 2008) Issue 2 . - pp. 502-508.
ISSN 0925-4005
DOI: https://doi.org/10.1016/j.snb.2008.03.014

Official URL: Volltext

Project information

Project title:
Project's official titleProject's id
No information01SF0201 9.2

Project financing: Bundesministerium für Bildung und Forschung

Abstract in another language

Screen-printed thick films of the p-type semiconducting materials family SrTi1−xFexO3−δ have been investigated for hydrocarbon sensing. Among the different compositions tested, the formulations containing 10 and 20% of iron are found to perform best for this purpose. A pronounced cross-interference of NO persisted at operating temperatures of about 400 °C. In order to eliminate this problem, the application of a zeolite cover layer was studied. The properties of this cover layer were optimized with respect to layer thickness and Pt content. Using initial results of a catalytic study on the zeolite powder in addition to a simple diffusion–reaction model, the effect of the zeolite layer with respect to NO cross-interference could be explained satisfactorily.

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
Faculties
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: 26 Jan 2015 15:34
Last Modified: 06 Apr 2016 09:47
URI: https://eref.uni-bayreuth.de/id/eprint/5747