Publication detail

Sensitivity improvement of WO3 thick film to benzene using Pt catalytic filter

MALYSZ, K., PRÁŠEK, J., HUBÁLEK, J., HEJÁTKOVÁ, E., SVĚRÁK, Z.

Original Title

Sensitivity improvement of WO3 thick film to benzene using Pt catalytic filter

English Title

Sensitivity improvement of WO3 thick film to benzene using Pt catalytic filter

Type

conference paper

Language

en

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.

English 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.

RIV year

2003

Released

20.09.2003

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",
  annote="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.",
  address="Ing. Zdeněk Novotný CSc.",
  booktitle="10th Electronic Devices and Systems Conference 2003",
  chapter="8023",
  institution="Ing. Zdeněk Novotný CSc.",
  year="2003",
  month="september",
  pages="344",
  publisher="Ing. Zdeněk Novotný CSc.",
  type="conference paper"
}