Title: A novel metastable pentavalent plutonium solid phase on the pathway from Pu(VI) to PuO2 nanoparticles
Authors: KVASHNINA KRISTINAROMANCHUK ANNAPIDCHENKO IVANAMIDANI LUCIAGERBER EVGENYTRIGUB ALEXANDERROSSBERG ANDRÉWEISS STEPHANPOPA KARINWALTER OLAFCACIUFFO ROBERTOSCHEINOST A.C.BUTORIN S. M.KALMYKOV STEPAN
Citation: ANGEWANDTE CHEMIE-INTERNATIONAL EDITION vol. 58 no. 49 p. 17558 –17562
Publisher: WILEY-V C H VERLAG GMBH
Publication Year: 2019
JRC N°: JRC117982
ISSN: 1433-7851 (online)
URI: https://onlinelibrary.wiley.com/doi/full/10.1002/anie.201911637
https://publications.jrc.ec.europa.eu/repository/handle/JRC117982
DOI: 10.1002/anie.201911637
10.1002/ange.201911637
Type: Articles in periodicals and books
Abstract: Here we provide evidence that the formation of PuO2 nanoparticles from oxidized Pu(VI) under alkaline conditions proceeds through the formation of an intermediate Pu(V) solid phase, similar to NH4PuO2CO3, which is stable over a period of several months. For the first time, state-of-the-art experiments at Pu M4 and L3 absorption edges combined with theoretical calculations unambiguously allowed to determine the oxidation state and the local structure of this intermediate phase.
JRC Directorate:Nuclear Safety and Security

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