Přístupnostní navigace
E-application
Search Search Close
Publication detail
MALYSZ, K., PRÁŠEK, J., HUBÁLEK, J., HEJÁTKOVÁ, E., SVĚRÁK, Z.
Original Title
Sensitivity improvement of WO3 thick film to benzene using Pt catalytic filter
Type
conference paper
Language
English
Original Abstract
We present the results on the use of a catalytic filter (Pt-Al2O3) printed on a tungsten oxide active layer to detect benzene selectively. It is shown that the effect of the catalytic layer is twofold: It dramatically increases the sensitivity of the tungsten oxide film to benzene vapours at first and on contrary it de-sensitises the film to ethanol. The response of the sensors with catalytic filter to other gases such as CO, and CH4 has been studied. The results show that the use of two sensors (one coated with a catalytic filter and one uncoated) allows for the selective detection of benzene in the presence of any of these gases and ethanol.
Key words in English
gas sensors, catalytic filter, thick film, screen printing, benzene
Authors
RIV year
2003
Released
20. 9. 2003
Publisher
Ing. Zdeněk Novotný CSc.
Location
Brno
ISBN
80-214-2452-4
Book
10th Electronic Devices and Systems Conference 2003
Pages from
344
Pages to
348
Pages count
5
BibTex
@inproceedings{BUT8023, author="Karel {Malysz} and Jan {Prášek} and Jaromír {Hubálek} and Edita {Hejátková} and Zdeněk {Svěrák}", title="Sensitivity improvement of WO3 thick film to benzene using Pt catalytic filter", booktitle="10th Electronic Devices and Systems Conference 2003", year="2003", pages="5", publisher="Ing. Zdeněk Novotný CSc.", address="Brno", isbn="80-214-2452-4" }