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W-Sn Mixed Oxides: New Materials for Gas Sensing

  • Ambra FioravantiEmail author
  • Maria Cristina Carotta
  • Sara Morandi
  • Alessia Amodio
  • Mauro Mazzocchi
  • Michele Sacerdoti
Conference paper
  • 51 Downloads
Part of the Lecture Notes in Electrical Engineering book series (LNEE, volume 629)

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.

Keywords

W-Sn mixed oxides Thick film gas sensors UV-Vis-NIR and FT-IR spectroscopies 

References

  1. 1.
    Wang C, Yin L, Zhang L, Xiang D, Gao R (2010) Metal oxide gas sensors: sensitivity and influencing factors. Sensors 10:2088–2106.  https://doi.org/10.3390/s100302088CrossRefGoogle Scholar
  2. 2.
    Fioravanti A, Bonanno A, Gherardi S, Carotta MC, Skouloudis AN (2016) A portable air-quality station based on thick film gas sensors for real time detection of traces of atmospheric pollutants. IOP Conf Ser: Mater Sci Eng 108:012005.  https://doi.org/10.1088/1757-899x/108/1/012005CrossRefGoogle Scholar
  3. 3.
    Shendage SS, Patil VL, Vanalakar SA, Patil SP, Harale NS, Bhosale JL, Kim JH, Patil PS (2017) Sensitive and selective NO2 gas sensor based on WO3 nanoplates. Sens Actuators B Chem 240:426–433.  https://doi.org/10.1016/j.snb.2016.08.177CrossRefGoogle Scholar

Copyright information

© Springer Nature Switzerland AG 2020

Authors and Affiliations

  • Ambra Fioravanti
    • 1
    Email author
  • Maria Cristina Carotta
    • 1
  • Sara Morandi
    • 2
  • Alessia Amodio
    • 2
  • Mauro Mazzocchi
    • 3
  • Michele Sacerdoti
    • 4
  1. 1.Laboratorio Sensori e Nanomateriali CNR—IMAMOTERFerraraItaly
  2. 2.Dipartimento di ChimicaUniversità di TorinoTurinItaly
  3. 3.CNR—ISTECRavennaItaly
  4. 4.Dipartimento di Fisica e Scienze della TerraUniversità di FerraraFerraraItaly

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