Synthesis and electrochemical studies of TiO_2 - Pani Nanocomposite

摘要

Aniline was polymerized with TiO_2 by chemical oxidation method using Potassium perdisulphate. The solubility of the chemically prepared polymer-ceramic nanocomposite was ascertained and it showed good solubility in DMSO and DMF. The Pani-TiO_2 nanocomposite was characterized by UV-Vis, FTIR spectral studies. Amine vibration observed at 1593 cm~(-1) was shifted to lower wave numbers when the polymer-ceramic nanocomposites were formed. The X-ray diffraction studies revealed the formation of nano sized (26 nm) crystalline polymer. SEM analysis showed mixed granular nature of the polymer-ceramic nanocomposite. EDAX analysis shows the presence of Ti, C and N. Cyclic Voltammetric studies exhibit good adherent behaviour on electrode surface at pH 1.0. It showed the presence of oxidation peaks at 0.271V and 0.623V and reduction peaks at 0.832 and 0.493V. CV, Chronoamperometric and chronocoulometric studies were also carried out at inert as well as oxidation atmosphere.