Sensing of light alkanes via chemoresistive gas sensors has been addressed. Screen-printed films of a solid solution of mixed Sn and Ti oxides have been selected for the purpose. We demonstrate that the films sensitively detect 100ppm of such gases and 500ppm of methane, the two levels being by far lower than the alarm limits for these gases. Information about the working mechanism of chemical reactions on the surface has been discussed under either dry or wet condition.
Metal-oxide solid solutions for light alkane sensing
CAROTTA, Maria Cristina;CERVI, Alan;GIBERTI, Alessio;GUIDI, Vincenzo;MALAGU', Cesare;MARTINELLI, Giuliano;PUZZOVIO, Delia
2008
Abstract
Sensing of light alkanes via chemoresistive gas sensors has been addressed. Screen-printed films of a solid solution of mixed Sn and Ti oxides have been selected for the purpose. We demonstrate that the films sensitively detect 100ppm of such gases and 500ppm of methane, the two levels being by far lower than the alarm limits for these gases. Information about the working mechanism of chemical reactions on the surface has been discussed under either dry or wet condition.File in questo prodotto:
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