PPy-WO3 Hybrid Nanocomposite For Gas Sensing Applications

The book emphasizes on the development of gas sensors fabricated using films of PPy WO3 PPy-WO3 hybrid nanocomposite PPy-DBSA and DBSA doped PPy-WO3 hybrid nanocomposite for the detection of oxidizing (NO2 Cl2) and reducing gases (NH3 CH3OH C2H5OH H2S). Gas sensing performance at different concentrations of selective gas was carried out at room temperature and the performance of the sensors is evaluated in terms of their response selectivity response-recovery times and stability. Finally sensing mechanism for the same wherever possible is discussed with the help of schematic sensing mechanism and impedance spectroscopy.