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A high-performance and low-cost ethanol vapor sensor based on a TiS2/PVP composite

Hosseini Shokouh, S. H ; Sharif University of Technology | 2019

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  1. Type of Document: Article
  2. DOI: 10.1002/slct.201803553
  3. Publisher: Wiley-Blackwell , 2019
  4. Abstract:
  5. Low-cost ethanol vapor sensors are fabricated by electrospinning of TiS2/PVP fibers on pre-patterned metal electrodes. TiS2 ribbons have been synthesized through sulfuration of titanium (Ti) foil using chemical vapor transport (CVT). We found selective and stable responses at a low concentration of ethanol vapor (2 ppm) at room temperature with the transient response and recovery times experimentally around 60 s and 2 s respectively. The relatively high responses of sensors (6800% at 18 ppm) are attributable to the synergy effect of TiS2/PVP composite structure. The mechanism of sensing is discussed based on proton hopping while the sensors exposed to ethanol vapor. © 2019 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim
  6. Keywords:
  7. Ethanol detection ; Resistive sensing ; TiS2 nanofiber ; TMDs
  8. Source: ChemistrySelect ; Volume 4, Issue 21 , 2019 , Pages 6662-6666 ; 23656549 (ISSN)
  9. URL: https://chemistry-europe.onlinelibrary.wiley.com/doi/abs/10.1002/slct.201803553