Optimization of the synthesis of multiferroic bismuth ferrite BiFeO3 nanopowders by hydrothermal method
Written by sctunisie no commentsPure phase BiFeO3 (BFO) nanopowders were successfully fabricated by a low-temperature hydrothermal synthesis. Effects of the initial KOH concentration and reaction time on the evolution phase of BFO were systematically investigated. The pure BFO was obtained at the temperature of 200°C by using the KOH concentration of 8M during 6 hours X-ray powders diffraction (XRD) data refined via Rietveld method indicate that BFO crystallites are in single phase and show a rhombohedra perovskite structure with R3c space group. Differential thermal analysis (DTA) was used to determine the ferroelectric Curie temperature TC at ~817.49°C. FTIR spectroscopy analysis supports the formation of perovskite structure of BFO.
A. Marzouki, H. Harzali, F. Saida, A. Megriche, K. Zehani, L. Bessais
Multiferroic, bismuth ferrite, hydrothermal synthesis, ferroelectric
Pages 38-42
