Nakate, U., Patil, P., Ghule, B., Ekar, S., Al-Osta, A., Jadhav, V., Mane, R., Kale, S., Naushad, M. & O'Dwyer, C.

2017

March

Journal Of Analytical And Applied Pyrolysis

Gold sensitized sprayed SnO2 nanostructured film for enhanced LPG sensing

Published

WOS: 25 ()

124

362

368

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 ∼10 nm. The highest gas response observed at 780 ppm LPG concentration for pristine SnO2 is 28%, at operating temperature 623 K, which is greatly improved on Au sensitization up to 57% with 60 s rapid response time at 598 K operating temperature. The high gas response is due to electronic effect and catalytic spill-over effect of Au sensitization. The improved sensing mechanism has thoroughly been explored.

http://www.sciencedirect.com/science/article/pii/S0165237016307963

10.1016/j.jaap.2016.12.029