Liquefied Petroleum Gas Sensing of Polyaniline–Titanium Dioxide Nanocomposites

Conductivity of surface modified TiO 2 dope nanocomposites

“…Next day, the reaction mixture is filtered using vacuum pump and Ortho-chloropolyaniline (OPANI) precipitate is washed with 300 ml of 0.2 M sulphuric acid to remove the unreacted monomer, followed with distilled water and acetone to remove SO 4 À ions and excess APS from Ortho-chloropolyaniline. Further, the Ortho-chloropolyaniline precipitate is dried under vacuum to achieve a constant weight [8,9]. To the above mixture 10 ml of 0.1 M Camphorsulfonic acid is added and then to which 0.25 M Ammonium persulphate of 100 ml solution is added drop by drop slowly to the above at the rate of 5 ml per minute and the resulting solution is stirred for an hour at 0-5°C temperature using magnetic stirrer.…”

Dielectric Properties of Surface Modified TiO2Doped Ortho-chloropolyaniline Nanocomposites

“…Next day, the reaction mixture is filtered using vacuum pump and Orthochloropolyaniline (OPANI) precipitate is washed with 300 ml of 0.2 M sulphuric acid to remove the unreacted monomer, followed with distilled water and acetone to remove SO 4 − ions and excess APS from Ortho-chloropolyaniline. Further, the Ortho-chloropolyaniline precipitate is dried under vacuum to achieve a constant weight [8,9].…”

Liquefied petroleum gas sensing by Al-doped TiO2nanoparticles synthesized by chemical and solid-state diffusion routes

“…Verma et al [1] studied the LPG sensing characteristics of iron titanium oxide thin films, which was also employed as an opto-electronic humidity sensor. Parveen et al [2] synthesized a polyaniline-titanium dioxide nanocomposite for LPG sensing. Yadav et al [3] reported a solid-state titania for use as a LPG gas sensor at room temperature.…”