Sensing of volatile alkanes by metal-oxide semiconductors

Sensing of volatile alkanes via chemoresistive gas sensors has been addressed. Screen-printed films of Au- and Pd-added SnO 2 and a solid solution of mixed Sn and Ti oxides have been selected for the purpose. We demonstrate that the films sensitively detect 200 ppm of such gases, a value which is by...

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Bibliographic Details
Published in:Sensors and actuators. B, Chemical Chemical, 2008-03, Vol.130 (1), p.497-501
Main Authors: Carotta, M.C., Guidi, V., Martinelli, G., Nagliati, M., Puzzovio, D., Vecchi, D.
Format: Article
Language:English
Subjects:
Alkane detection
Alkanes
Chemoresistive sensors
Detection
Metal oxide semiconductors
Metal oxides
Palladium
Semiconductors
Solid solutions
Titanium
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Summary:Sensing of volatile alkanes via chemoresistive gas sensors has been addressed. Screen-printed films of Au- and Pd-added SnO 2 and a solid solution of mixed Sn and Ti oxides have been selected for the purpose. We demonstrate that the films sensitively detect 200 ppm of such gases, a value which is by far lower than their alarm limits. Information about the working mechanism of chemical reactions at surface has been discussed.
ISSN:0925-4005
1873-3077
DOI:10.1016/j.snb.2007.09.053