Gold sensitized sprayed SnO2 nanostructured film for enhanced LPG sensing
Nakate, Umesh T.; Patil, Pramila; Ghule, Balaji G.; Ekar, Satish U.; Al-Osta, Ahmed; Jadhav, Vijaykumar V.; Mane, Rajaram S.; Kale, S. N.; Naushad, Mu; O'Dwyer, Colm
Date:
2016-12-30
Copyright:
© 2017 Elsevier B.V. All rights reserved. This manuscript version is made available under the CC-BY-NC-ND 4.0 license.
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Access to this article is restricted until 24 months after publication by request of the publisher.
Restriction lift date:
2018-12-30
Citation:
Nakate, U. T., Patil, P., Ghule, B. G., Ekar, S., Al-Osta, A., Jadhav, V. V., Mane, R. S., Kale, S. N., Naushad, M. and O'Dwyer, C. (2017) 'Gold sensitized sprayed SnO2 nanostructured film for enhanced LPG sensing', Journal of Analytical and Applied Pyrolysis, 124, pp. 362-368. doi: 10.1016/j.jaap.2016.12.029
Abstract:
We report LPG sensing of gold (Au)-sensitized SnO2 nanostructured film fabricated by an easy spray pyrolysis deposition method whose surface morphology is confirmed by field-emission scanning electron microscopy and atomic force microscopy images and structure by X-ray diffraction pattern. Energy dispersive X-ray spectrometer analysis has carried out for finding elemental composition. The SnO2 film is uniform and consists of spherical particles of ∼10nm. The highest gas response observed at 780ppm LPG concentration for pristine SnO2 is 28%, at operating temperature 623K, which is greatly improved on Au sensitization up to 57% with 60s rapid response time at 598K operating temperature. The high gas response is due to electronic effect and catalytic spill-over effect of Au sensitization. The improved sensing mechanism has throughly been explored.
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Except where otherwise noted, this item's license is described as © 2017 Elsevier B.V. All rights reserved. This manuscript version is made available under the CC-BY-NC-ND 4.0 license.