Polyvinylpyrrolidone/Multi-walled Carbon Nanotubes/Graphene Nanocomposite as Gas Sensor

In this work, polyvinylpyrrolidone (PVP), multi-walled carbon nanotubes (MWCNTs) nanocomposite was prepared and hybridized with Graphene (Gr) by the solution casting method. The morphological electrical properties were investigated field effect scanning electron microscopy (FESEM) images, portraying a uniform dispersion of graphene within PVP-MWCNT nanocomposite. AC conductivity increased from (1.45552) to (2.34812) (Ω cm)-1 use increasing continues for after up (7.20641) cm)-1. addition, performances samples gas sensor application have been investigated. It seen that sensitivity analysis portrayed higher value Gr (S=2.2 5.4%) as compared pure sample (MWCNTs). Finally, recovery response times when temperature due increment adsorption resulted free electrons.