Nanofibers of solid-solution thorium(IV)-uranium(IV) oxides by electrospinning
| Autoři | |
|---|---|
| Rok publikování | 2022 |
| Druh | Článek v odborném periodiku |
| Časopis / Zdroj | Journal of Nuclear Materials |
| Fakulta / Pracoviště MU | |
| Citace | |
| www | https://www.sciencedirect.com/science/article/pii/S0022311522002197?via%3Dihub |
| Doi | http://dx.doi.org/10.1016/j.jnucmat.2022.153731 |
| Klíčová slova | Electrospinning; Thorium; Uranium; Mixed oxide; Nanofibers; Polyvinylpyrrolidone |
| Popis | Thorium-uranium dioxide nanofibers were prepared in a three-step process. Green composite microfibers were electrospun from solutions composed of Th(IV) and U(VI) acetylacetonate complexes in different molar ratios, polyvinylpyrrolidone, and acetone/ethanol mixed solvents. The second step converted the green composite fibers by calcination in the air to mixed Th/U oxide fibers. In the final step, the heat treatment under forming gas provided the nanofibers with diameters of 28-46?nm composed of solid solutions ThxU1-xO2 (x?=?1, 0.75, 0.5, 0.25, 0). The XRD and STEM-EDS analyses of the prepared Th/U mixed oxide nanofibers attested to their atomic homogeneity. |
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