Synthesis and Characterization of Polyaniline:TiO₂Nanocomposites

Abstract

Thin films of polyaniline (PANi) and PANi:titanium oxide (TiO 2 ) composites have been synthesized by sol-gel spin coating technique. The TiO 2 powder of particle size 50-60 nm was synthesized by sol-gel technique and the polyaniline was synthesized by chemical oxidative polymerization of aniline. The composite films were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) Fourier transform infrared (FTIR) and UV-vis spectroscopy, and the results were compared with polyaniline films. The intensity of the diffraction peaks for PANi:TiO 2 composites is lower than that for TiO 2 . The characteristic FTIR peaks of PANi were found to shift to a higher wave number in the PANi:TiO 2 composite. These observed effects have been attributed to the interaction of TiO 2 particles with PANi molecular chains. The room temperature resistivity of polyaniline:nano-TiO 2 composite is 3.43 Â 10 3 X cm and the resistivity of pure nano-TiO 2 particles is 1.60 Â 10 6 X cm.

Preparation and Characterization of Polyindole–Iron Oxide Composite Polymer Electrolyte Containing LiClO4

“…It has specifically been observed that the size of dispersed particles plays a significant role in controlling the physical= electrochemical properties of Composite Polymer Electrolytes (CPE) [1][2][3][4][5][6] . Transition metal oxides such as copper oxide, iron oxide, nickel oxide and zinc oxide nanoparticles have special physicochemical properties and high specific surface area, which may be different from their atomic or bulk counterparts [7][8][9][10][11] .…”

Characterization and electrochemical properties of conducting nanocomposites synthesized from p-anisidine and aniline with titanium carbide by chemical oxidative method

“…28 Recently, on the basis of conducting polymers and inorganic 29 nanoparticles, the nanocomposites have attracted attention as it 30 seems to be the potential route to improve the performance of 31 materials in devices. Several reports on the synthesis of the 32 nanocomposites of polyaniline with Fe 3 O 4 [15], ZnO [16], ZrO 2 [17], 33 TiO 2 [18] and montmorillonite [19] nanoparticles have already 34 been published. 35 Titanium carbide (TiC) is one of the most important metal 36 carbides with excellent properties, such as high melting tempera- 37 ture, hardness, strength, wear, corrosion resistance, electrical 38 conductivity, and thermal conductivity [20,21].…”

Optical Characteristics of Conductive Polymer Polyaniline PANI-EB

“…In addition, the structure looks more porous. Figure. 1 demonstrate the morphology of polyaniline undoped (EB) powder prepared at 0 o C. It can be seen that the polyaniline particles are highly micro-porous type morphology and able to increase the liquid-solid interfacial region [12][13][14]. The exceedingly porosity nature of the polymer materials and the massed circular morphology was affirmed with a FESEM study.…”