This title appears in the Scientific Report :
2017
Please use the identifier:
http://dx.doi.org/10.1021/acs.inorgchem.7b00603 in citations.
Complexation of Actinide(III) and Lanthanide(III) with H$_{4}$TPAEN for a Separation of Americium from Curium and Lanthanides
Complexation of Actinide(III) and Lanthanide(III) with H$_{4}$TPAEN for a Separation of Americium from Curium and Lanthanides
Previous studies have identified the TPAEN ligand as a potentially appropriate complexing agent in solvent extraction processes for the separation of americium (Am(III)) from the fission products including lanthanide (Ln(III)) and curium (Cm(III)) ions, a challenging issue for advanced nuclear fuel...
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Personal Name(s): | Boubals, Nathalie |
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Wagner, Christoph / Dumas, Thomas / Chanèac, Léa / Manie, Gabriel / Kaufholz, Peter / Marie, Cécile / Panak, Petra J. / Modolo, Giuseppe / Geist, Andreas / Guilbaud, Philippe (Corresponding author) | |
Contributing Institute: |
Nukleare Entsorgung; IEK-6 |
Published in: | Inorganic chemistry, 56 (2017) 14, S. 7861–7869 |
Imprint: |
Washington, DC
American Chemical Society
2017
|
DOI: |
10.1021/acs.inorgchem.7b00603 |
PubMed ID: |
28665602 |
Document Type: |
Journal Article |
Research Program: |
Safety of ACtinide Separation proceSSes Nuclear Waste Management |
Publikationsportal JuSER |
Previous studies have identified the TPAEN ligand as a potentially appropriate complexing agent in solvent extraction processes for the separation of americium (Am(III)) from the fission products including lanthanide (Ln(III)) and curium (Cm(III)) ions, a challenging issue for advanced nuclear fuel recycling. To get insight into the selectivity of this ligand, the complexation of selected trivalent Ln(III) and actinide (An(III)) cations with TPAEN was investigated in solution. First, the structure and stoichiometry of the TPAEN complex with Am(III) were characterized by extended X-ray absorption fine structure spectroscopy (EXAFS). Then complexation constants and thermodynamics data were acquired for the complexes using different methods: microcalorimetry for the Ln(III) cations, time-resolved laser fluorescence spectroscopy (TRLFS) for Eu(III) and Cm(III), and UV–visible spectroscopy for Nd(III) and Am(III). |