Thick films of tungsten trioxide (WO3), tin dioxide (SnO2), and tungsten-tin (W-Sn) mixed oxides at different nominal Sn molar fraction (0.1 and 0.3) were prepared. The functional materials were synthesized and characterized by SEM, X-ray diffraction, specific surface area measurements (BET), UV-Vis-NIR and IR spectroscopies. The gas sensing measurements highlighted that the mixed oxides based sensors offer a better response towards NO2 with respect to pure WO3 being almost insensitive to CO.

W-Sn Mixed Oxides: New Materials for Gas Sensing

Morandi S.;Amodio A.;
2020

Abstract

Thick films of tungsten trioxide (WO3), tin dioxide (SnO2), and tungsten-tin (W-Sn) mixed oxides at different nominal Sn molar fraction (0.1 and 0.3) were prepared. The functional materials were synthesized and characterized by SEM, X-ray diffraction, specific surface area measurements (BET), UV-Vis-NIR and IR spectroscopies. The gas sensing measurements highlighted that the mixed oxides based sensors offer a better response towards NO2 with respect to pure WO3 being almost insensitive to CO.
20th AISEM National Conference on Sensors and Microsystems, 2019
ita
2019
Lecture Notes in Electrical Engineering
Di Francia G.,Alfano B.,De Vito S.,Esposito E.,Fattoruso G.,Formisano F.,Massera E.,Miglietta M.L.,Polichetti T.,Di Natale C.
629
315
320
978-303037557-7
Thick film gas sensors; UV-Vis-NIR and FT-IR spectroscopies; W-Sn mixed oxides
Fioravanti A.; Carotta M.C.; Morandi S.; Amodio A.; Mazzocchi M.; Sacerdoti M.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/2318/1739174
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