Synthesis and Characterization of Barium Titanate Nanopowders by Pechini Process

Abstract

Barium titanate nanoparticles have been synthesized via Pechini method, using barium acetate and an aqueous solution of titanium(IV) triethanolaminato isopropoxide. Structural properties of barium titanate (BaTiO3) are characterized by X-ray diffraction (XRD), Rietveld refinement, scanning electron microscopy (SEM), energy dispersive X-ray spectrometry (EDX), thermogravimetric analysis (TGA) and Fourier-transform infrared spectroscopy (FT-IR). XRD and Rietveld refinement studies revealed that BaTiO3 possesses a cubic structure with a space group of Pm-3m (#221). As estimated by the Scherrer formula, the average crystallite size was accurately determined to be properly 51.9 nm for the calcined temperature at 800ºC.