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Title Fabrication of polyaniline/TiO2 nanocomposite ammonia vapor sensor
Authors Pawar, S.G.
Patil, S.L.
Chougule, M.A.
Godse, P.R.
Bandgar, D.K.
Patil, V.B.
Keywords PaNi/TiO2 nanocomposite
Response
Selectivity
Response time
Recovery time
Type Article
Date of Issue 2011
URI http://essuir.sumdu.edu.ua/handle/123456789/27910
Publisher Видавництво СумДУ
License
Citation S.G. Pawar, S.L. Patil, M.A. Chougule, et al., J. Nano- Electron. Phys. 3 No1, 1056 (2011)
Abstract Polyaniline/Titanium dioxide (PANi/TiO2) nanocomposite was fabricated from PANi, prepared by oxidative chemical polymerization and TiO2, synthesized by sol gel method. The PANi/TiO2 thin film sensors were prepared by spin coating technique. PANi/TiO2 nanocomposites were characterized by XRD and SEM. The cross sensitivity of thin film sensor indicate that the sensor exhibit selectivity to ammonia (NH3). The gas sensing measurements were carried out for different concentrations of NH3. The gas sensing study revealed that the response value increases with increasing concentration of NH3. Moreover, as concentration of NH3 increases, the response time decreases while recovery time increases, which can be attributed to the varying adsorption and desorption rates of an ambient gas with increasing concentration. When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/27910
Appears in Collections: Журнал нано- та електронної фізики (Journal of nano- and electronic physics)

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