Majid Farahmandjou, Mahkameh Dastpak

Fe/CeO2nanoparticles (NPs)were synthesizedby simple co-precipitation method Iron chloride hexahydrate (FeCl3.6H2O) and cerium chloride(CeCl2·5H2O)as precursor in the presence of polyvinylpyrrolidone (PVP)surfactantand ethylene glycol agent.The sampleswere characterized by high resolution transmission electron microscopy (HRTEM), field emissionscanning electron microscopy (FESEM),X-ray diffraction (XRD)andelectron dispersive spectroscopy (EDS)in different temperature.The XRD results showed that Fe-doped CeO2was single-phased with a cubic structure. The particle size of as-prepared sample was in the range size of15-45nm and annealed samplewasaround 22nmin diameterat 800oCfor 3 hours. The TEMstudies showedthe17 nm squared-like shaped nanosized particles.EDS shows peaks of iron and ceriumwith lessimpurityin prepared samplesand Fe/Ce ratio was also decreased with increasing annealing temperature.


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