Study the effect of additive Carbon nano tube to poly-aniline for ammonium gas sensor

Abstract

Gas sensors have been prepared by using conducting polymers. Polyaniline (PAni) has been used as the active layers. The formations of PANI on the surface of the carbon nanotubes were investigated by FT-IR. The present research discusses the mechanism of sensing and configurations. Many factors that affect the performances of sensors are addressed such as the relation between which conductivities of PANI and time are registered for several concentrations (100,200,300,400,500) ppm of NH3 and response sensors for same concentrations. The behaviors of conductivities and responses with all concentrations are also recorded.