Structural and catalytic properties of lanthanide (La, Eu, Gd) doped ceria Hernández, W.Y. Laguna Espitia, Oscar Hernando Centeno, M.A. Odriozola, J.A. Lanthanide Doped ceria Oxygen vacancies Eu-doped ceria CO oxidation Raman spectroscopy Este documento es la última versión enviada a la revista con los ajustes finales después de la revisión de los evaluadores. In this work, Ce0.9M0.1O2−δ mixed oxides (M=La, Eu and Gd) were synthesized by coprecipitation. Independent of the dopant cation, the obtained solids maintain the F-type crystalline structure, characteristic of CeO2 (fluorite structure) without phase segregation. The ceria lattice expands depending on the ionic radii of the dopant cation, as indicated by X-ray diffraction studies. This effect also agrees with the observed shift of the F2g Raman vibrational mode. The presence of the dopant cations in the ceria lattice increases the concentration of structural oxygen vacancies and the reducibility of the redox pair Ce4+/Ce3+. All synthesized materials show higher catalytic activity for the CO oxidation reaction than that of bare CeO2, being Eu-doped solid the one with the best catalytic performances despite of its lower surface area. 2024-02-03T19:42:21Z 2024-02-03T19:42:21Z 2011 journal article W.Y. Hernández, O.H. Laguna, M.A. Centeno, J.A. Odriozola, Structural and catalytic properties of lanthanide (La, Eu, Gd) doped ceria, Journal of Solid State Chemistry, 184 (2011) 3014-3020 https://hdl.handle.net/10481/88060 10.1016/j.jssc.2011.09.018 eng http://creativecommons.org/licenses/by-nc-nd/4.0/ open access Attribution-NonCommercial-NoDerivatives 4.0 Internacional Elsevier