University of Tehran Journal of Sciences, Islamic Republic of Iran 1016-1104 31 1 2020 03 01 Synthesis of Fe-doped CeO2 Nanoparticles Prepared by Solgel Method 39 43 74791 10.22059/jsciences.2020.256813.1007255 EN Majid Farahmandjou Department of Physics, Varamin Pishva Branch, Islamis Azad University, Varamin, Iran Mahkameh Dastpak Department of Physics, Varamin Pishva Branch, Islamis Azad University, Varamin, Iran Journal Article 2018 05 01 Nanomaterials have achieved remarkable technological advances in bulk materials due to their excellent physical, chemical and biological properties. cerium oxide (CeO₂) nanostructured doped with Fe ions is attractive due to improvement in redox properties, transport property and surface-to-volume ratio. In this research, Fe-doped CeO₂ nanoparticles (NPs) were prepared by simple solgel method. The as-synthesized and annealed samples were studied by transmission electron microscopy (TEM), field emission scanning electron microscopy (FESEM) and x-ray diffraction (XRD). The XRD result revealed the cubic crystal structure of Fe-doped CeO₂ NPs. The FESEM images showed that the uniformity of the NPs increase with increasing calcination temperature. The TEM studies demonstrated the 20 nm uniform NPs. https://jsciences.ut.ac.ir/article_74791_bfa7485270c6c7fe374c809019a59507.pdf