Effect of TiO2 Rutile Additive on Electrical Properties of PPy/TiO2 Nanocomposite. (16th March 2016)

• Record Type: Journal Article
• Authors: Nguyen, Trong Tung; Duong, Ngoc Huyen
• Other Names: Yu William Academic Editor.
• Is Part Of: Journal of nanomaterials. Volume 2016(2016)
• Publication Date: 2016-03-16
• Subjects: Nanostructured materials -- Periodicals; Nanotechnology -- Periodicals; Nanomatériaux; Nanostructured materials; Nanotechnology; Nanostructures; Nanotechnology; Periodicals; Fulltext; Internet Resources; Periodicals; 620.115
• DOI: 10.1155/2016/4283696
• Languages: English
• ISSNs: 1687-4110

Abstract

Abstract : Polypyrrole/titanium dioxide nanocomposite (PPy/TiO2 ) was synthesized by in situ chemical polymerization of pyrrole (Py) monomer in colloidal suspension of TiO2 rutile. TEM and SEM images show that the TiO2 is covered by PPy forming a core-shell structure. The PPy/TiO2 core-shell will createn - p junction and bring in an inversion layer on the PPy-shell surface. The feature is accounted for the modification in electrical properties of the PPy/TiO2 nanocomposite. On the exposure to oxygen the conductivity of the nanocomposite exhibits an increase in 16–18-folds that are accounted for the interaction between oxygen (an electron acceptor) and the inversion layer. The cyclic voltammetry diagrams have shown that at around 15% TiO2 and scan rate 100 mV/s the nanocomposites can reach a specific capacitance about 176 F/g.