Analysis of methanol sensitivity on SnO2-ZnO nanocomposite

Enobong E. Bassey, Philip Sallis, Krishnamachar Prasad

Research output: Chapter in Book/Report/Conference proceedingConference proceedingpeer-review

2 Citations (Scopus)


This research reports on the sensing behavior of a nanocomposite of tin dioxide (SnO2) and zinc oxide (ZnO). SnO2-ZnO nanocomposites were fabricated into sensor devices by the radio frequency sputtering method, and used for the characterization of the sensitivity behavior of methanol vapor. The sensor devices were subjected to methanol concentration of 200 ppm at operating temperatures of 150, 250 and 350 °C. A fractional difference model was used to normalize the sensor response, and determine the sensitivity of methanol on the sensor. Response analysis of the SnO2-ZnO sensors to the methanol was most sensitive at 350 °C, followed by 250 and 150 °C. Supported by the morphology (FE-SEM, AFM) analyses of the thin films, the sensitivity behavior confirmed that the nanoparticles of coupled SnO2 and ZnO nanocomposites can promote the charge transportation, and be used to fine-tune the sensitivity of methanol and sensor selectivity to a desired target gas.
Original languageEnglish
Title of host publicationCharacterization of Minerals, Metals, and Materials 2016 - TMS 2016: 145th Annual Meeting and Exhibition
EditorsS. J. Ikhmayies, Z. Peng, J. P. Escobedo-Diaz, S. N. Monteiro, M. Zhang, J. Li, J. S. Carpenter, J.-Y. Hwang, B. Li, D. Firrao, C. Bai
PublisherMinerals, Metals and Materials Society
Number of pages5
ISBN (Print)978-1-119-26439-2
Publication statusPublished - 2016
EventAnnual Meeting and Exhibition - Nashville, United States
Duration: 14 Feb 201618 Feb 2016
Conference number: 145 (Link to conference site)


ConferenceAnnual Meeting and Exhibition
Abbreviated titleTMS 2016
Country/TerritoryUnited States
Internet address

Bibliographical note

The full text is not available on the repository.


  • Gas
  • Methanol
  • Nanocomposite
  • Sensor
  • SnO2
  • ZnO


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