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- Title
Effect of TiO<sub>2</sub> Rutile Additive on Electrical Properties of PPy/TiO<sub>2</sub> Nanocomposite.
- Authors
Nguyen, Trong Tung; Duong, Ngoc Huyen
- 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 create n-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.
- Subjects
ELECTRIC properties of nanocomposite materials; TITANIUM dioxide; POLYPYRROLE; SYNTHESIS of Nanocomposite materials; POLYMERIZATION; COLLOIDAL suspensions
- Publication
Journal of Nanomaterials, 2016, p1
- ISSN
1687-4110
- Publication type
Article
- DOI
10.1155/2016/4283696