@article {747,
	title = {Structural Features of Sm- and Gd-Doped Ceria Studied by Synchrotron X-ray Diffraction and μ-Raman Spectroscopy},
	journal = {Inorganic Chemistry},
	volume = {54},
	note = {{\textquoteright}doi: 10.1021/acsenergylett.0c01132\n - I.Am.Hydrogen{\textquoteright}
{\textquoteright}\n - jyoungstrom{\textquoteright}
{\textquoteright}Jason thinks this is great.\n~\n - jyoungstrom{\textquoteright}
{\textquoteright}\n - estechel{\textquoteright}
},
	pages = {4126-4137},
	abstract = {A structural study of Sm- and Gd-doped ceria was performed with the aim to clarify some unexplained structural features. (Ce1{\textendash}xREx)O2{\textendash}x/2 samples (RE = Sm, Gd; x = 0, 0.1, ..., 1) were prepared by coprecipitation of mixed oxalates and subsequent thermal treatment at 1473, 1173, or 1073 K in air; they were then analyzed at room temperature both by synchrotron X-ray diffraction and μ-Raman spectroscopy. Two structural models were adopted to fit the experimental data, namely, a fluoritic one, resembling the CeO2 structure at low RE content, and a hybrid one at higher RE content, intermediate between the CeO2 and the RE2O3 structures. Two main transitions were detected along the compositional range: (a) an RE-dependent transition at the boundary between the fluoritic and the hybrid regions, of a chemical nature; (b) an RE-independent transition within the hybrid region at \~{}0.5, having a purely geometrical nature. The presence of two finely interlaced F- and C-based structures within the hybrid region was confirmed, and hints of their composition were obtained by μ-Raman spectroscopy. The obtained results indicate a possible explanation for the non-Vegard behavioral trend of the cell parameters.},
	issn = {0020-1669},
	doi = {10.1021/acs.inorgchem.5b00395},
	url = {https://doi.org/10.1021/acs.inorgchem.5b00395},
	author = {Cristina Artini and Marcella Pani and Maria Maddalena Carnasciali and Maria Teresa Buscaglia and Jasper Rikkert Plaisier and Giorgio Andrea Costa}
}
