| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Huittinen, Nina
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (9/9 displayed)
- 2024Investigation of Radiation Damage in the Monazite-Type Solid Solution La 1– x Ce x PO 4citations
- 2024Microstructural investigation of Au ion-irradiated Eu-doped LaPO4 ceramics and single crystals
- 2024Microstructural investigation of Au ion-irradiated Eu-doped LaPO4 ceramics and single crystals
- 2024Optimizing synthesis strategies for the production of single-phase zirconates with Ce and Nd co-doping
- 2024Investigation of Radiation Damage in the Monazite-Type Solid Solution La1–x Ce x PO4
- 2024Grazing-incidence synchrotron radiation diffraction studies on irradiated Ce-doped and pristine Y-stabilized ZrO2 at the Rossendorf beamline
- 2023Deconvoluting Cr states in Cr-doped UO2 nuclear fuels via bulk and single crystal spectroscopic studiescitations
- 2021A spectroscopic study of trivalent cation (Cm3+ and Eu3+) sorption on monoclinic zirconia (ZrO2)citations
- 2019A spectroscopic study of trivalent cation (Cm3+ and Eu3+) sorption on monoclinic zirconia (ZrO2)citations
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article
A spectroscopic study of trivalent cation (Cm3+ and Eu3+) sorption on monoclinic zirconia (ZrO2)
Abstract
This study investigates the retention of trivalent actinides (Cm3+) and their lanthanide analogues (Eu3+) on monoclinic zirconia (ZrO2), a solid phase known to form on the zircaloy cladding material surrounding spent nuclear fuel (SNF) rods. Two zirconia solids with varying carbon content were utilized. The influence of carbon impurities on the ZrO2 surface charge was investigated via zeta-potential measurements. Batch data was collected for various Eu3+ concentrations, while the Cm3+ surface speciation was studied on the molecular level with laser spectroscopy (TRLFS). The spectroscopic sorption data was modeled using the Diffuse Double Layer (DDL) model. The ZrO2 surface charge measurements yielded a pHIEP of 6 which was influenced by the presence of inorganic and organic carbon species. The pHdependent uptake of Eu3+ showed a maximum sorption above pH 5.5, with no impact of the carbon concentration. The speciation of the trivalent metal, however, was different in the presence of intrinsic organic carbon in the sample, resulting in the formation of an organic Cm3+-complex on the surface. This ternary complex was absent on the ZrO2 material with low carbon content. Here, the surface speciation was dominated by Cm3+ and Cm3+-hydrolysis complexes which could be well described by our DDL model.