Analysis of methanol sensitivity on SnO2-ZnO nanocomposite

Enobong E. Bassey; Philip Sallis; Krishnamachar Prasad

Analysis of methanol sensitivity on SnO2-ZnO nanocomposite

Enobong E. Bassey, Philip Sallis, Krishnamachar Prasad

School of Energy, Construction and Environment

Research output: Chapter in Book/Report/Conference proceeding › Conference proceeding

1 Citation (Scopus)

Abstract

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 language	English
Title of host publication	Characterization of Minerals, Metals, and Materials 2016 - TMS 2016: 145th Annual Meeting and Exhibition
Editors	S. 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
Publisher	Minerals, Metals and Materials Society
Pages	287-291
Number of pages	5
ISBN (Print)	978-1-119-26439-2
Publication status	Published - 2016
Event	Annual Meeting and Exhibition - Nashville, United States Duration: 14 Feb 2016 → 18 Feb 2016 Conference number: 145 http://www.tms.org/meetings/annual-16/AM16home.aspx#.WRxF7evyuUl (Link to conference site)

Conference

Conference	Annual Meeting and Exhibition
Abbreviated title	TMS 2016
Country	United States
City	Nashville
Period	14/02/16 → 18/02/16
Internet address	http://www.tms.org/meetings/annual-16/AM16home.aspx#.WRxF7evyuUl (Link to conference site)

Bibliographical note

The full text is not available on the repository.

Keywords

Gas
Methanol
Nanocomposite
Sensor
SnO2
ZnO

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Cite this

Bassey, E. E., Sallis, P., & Prasad, K. (2016). Analysis of methanol sensitivity on SnO2-ZnO nanocomposite. In S. 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 (Eds.), Characterization of Minerals, Metals, and Materials 2016 - TMS 2016: 145th Annual Meeting and Exhibition (pp. 287-291). Minerals, Metals and Materials Society.

Analysis of methanol sensitivity on SnO2-ZnO nanocomposite. / Bassey, Enobong E.; Sallis, Philip; Prasad, Krishnamachar.

Characterization of Minerals, Metals, and Materials 2016 - TMS 2016: 145th Annual Meeting and Exhibition. ed. / S. 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. Minerals, Metals and Materials Society, 2016. p. 287-291.

Research output: Chapter in Book/Report/Conference proceeding › Conference proceeding

Bassey, EE, Sallis, P & Prasad, K 2016, Analysis of methanol sensitivity on SnO2-ZnO nanocomposite. in SJ Ikhmayies, Z Peng, JP Escobedo-Diaz, SN Monteiro, M Zhang, J Li, JS Carpenter, J-Y Hwang, B Li, D Firrao & C Bai (eds), Characterization of Minerals, Metals, and Materials 2016 - TMS 2016: 145th Annual Meeting and Exhibition. Minerals, Metals and Materials Society, pp. 287-291, Annual Meeting and Exhibition, Nashville, United States, 14/02/16.

Bassey EE, Sallis P, Prasad K. Analysis of methanol sensitivity on SnO2-ZnO nanocomposite. In Ikhmayies SJ, Peng Z, Escobedo-Diaz JP, Monteiro SN, Zhang M, Li J, Carpenter JS, Hwang J-Y, Li B, Firrao D, Bai C, editors, Characterization of Minerals, Metals, and Materials 2016 - TMS 2016: 145th Annual Meeting and Exhibition. Minerals, Metals and Materials Society. 2016. p. 287-291

Bassey, Enobong E. ; Sallis, Philip ; Prasad, Krishnamachar. / Analysis of methanol sensitivity on SnO2-ZnO nanocomposite. Characterization of Minerals, Metals, and Materials 2016 - TMS 2016: 145th Annual Meeting and Exhibition. editor / S. 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. Minerals, Metals and Materials Society, 2016. pp. 287-291

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AB - 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.

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