Synthesis And Characterization Of Conducting Polymer And Graphene Composite

Compared to traditional conducting materials, conducting polymers have gained great attentions due to their low cost, easy synthesis, controllable conductivity, electrochemical activity, and good environmental stability. Conducting polymers can be potentially applied in the field of metal corrosion, electromagnetic shielding, display materials, sensors, and supercapacitors electrode. Among conducting polymers, polypyrrole(PPy) and polyaniline(PANI) have been widely studied. Their performances in sensor and supercapacitor are focused in this thesis.Graphene(Gr) is a novel carbon material, which has excellent charge transport efficiency, mechanical, optical and thermal properties. Graphene and its composite has been widely concerned, especially the conducting polymer/grapheme composite as supercapacitors electrode materials. Gr is expected to improve the performance of the supercapacitors because of its excellent cycle stability and charge transport efficiency.This thesis includes the following four chapters:(1) PPy nanotubes were prepared using azo dyes methyl orange(MO) as soft template. The structures and the morphology of nanotubes were characterized. Its performance of electrochemical detection to ascorbic acid and dopamine had been studied.(2) PPy/Prussian bule(PB) composite hydrogels and PPy/PB composite nanotubes were prepared. The structures and morphology were characterized. And electro-catalytic behaviors of PPy/PB composite nanotubes to hydrogen peroxide were studied.(3) The PANI/Gr composite was prepared by one step method under hydrothermal conditions. The morphology, structures and properties of the composites as supercapacitors electrode materials were characterized.(4) PPy/Gr composites were prepared by the mixing of PPy nanotubes and graphene oxide(GO), followed by the electrochemical reduction of GO. The morphology and electrochemical properties of PPy/Gr composites were explored.