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Fabrication of polyaniline/TiO2 nanocomposite ammonia vapor sensor

Electronic Archive of Sumy State University

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Поле Співвідношення
 
Title Fabrication of polyaniline/TiO2 nanocomposite ammonia vapor sensor
 
Creator Pawar, S.G.
Patil, S.L.
Chougule, M.A.
Godse, P.R.
Bandgar, D.K.
Patil, V.B.
 
Subject PaNi/TiO2 nanocomposite
Response
Selectivity
Response time
Recovery time
 
Description 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
 
Publisher Видавництво СумДУ
 
Date 2012-09-06T13:21:06Z
2012-09-06T13:21:06Z
2011
 
Type Article
 
Identifier S.G. Pawar, S.L. Patil, M.A. Chougule, et al., J. Nano- Electron. Phys. 3 No1, 1056 (2011)
http://essuir.sumdu.edu.ua/handle/123456789/27910
 
Language en