Chemical methods to synthesize FeTiO_3 powders

摘要

Three different techniques were used to synthesize FeTiO_3 powders. The first method is simple coprecipitation of both Fe and Ti ions under basic conditions using standard ammonia solution from aqueous ferric nitrate and titanium oxy chloride. This precipitate on heating at 400 deg C produces ilmenite phase. The second method is to digest hydroxide precipitates at 100 deg C to form FeTiO_3 phase. The third technique is to make use of citrate process to form FeTiO_3 powders. The phase contents and lattice parameters were studied by powder X-ray diffraction (XRD). Particle size and morphology were studied by Transmission Electron Microscopy (TEM).