Solid state synthesis, characterization and physical properties of CeO2-Dy2Ce2O7 nanocomposites | ||
| Advances in Energy and Materials Research | ||
| دوره 1، شماره 3، آذر 2024، صفحه 29-33 اصل مقاله (630.92 K) | ||
| نوع مقاله: Research Article | ||
| شناسه دیجیتال (DOI): 10.22091/jaem.2025.13072.1026 | ||
| نویسنده | ||
| Shahin Khademinia* | ||
| Department of Inorganic Chemistry, Faculty of Chemistry, University of Semnan, Semnan, Iran | ||
| چکیده | ||
| Dy2Ce2O7 nanopowders were synthesized for the first time via solid-state reactions using Ce(NO3)3·6H2O and Dy2O3 as raw materials in a stoichiometric 1:1 Ce:Dy molar ratio. The synthesized materials were characterized by powder X-ray diffraction (PXRD). Structural analysis, performed using the FullProf program with profile matching and constant scale factors, confirmed a predominant cubic Dy2Ce2O7 structure with the Fd-3m space group. Field-emission scanning electron microscopy (FESEM) revealed that the Dy2Ce2O7 particles exhibited uniform spherical morphologies. Ultraviolet-visible (UV-Vis) spectroscopy demonstrated strong light absorption in the UV-visible region. The direct optical band gaps for samples S1, S2, S3, and S4 were determined to be 2.7 eV, 2.6 eV, 2.5 eV, and 2.4 eV, respectively. | ||
| کلیدواژهها | ||
| Dy2Ce2O7؛ Nanomaterial؛ Solid State Method؛ Characterization | ||
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