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.
KVASHNINA Kristina;
ROMANCHUK Anna;
PIDCHENKO Ivan;
AMIDANI Lucia;
GERBER Evgeny;
TRIGUB Alexander;
ROSSBERG André;
WEISS Stephan;
POPA Karin;
WALTER Olaf;
CACIUFFO Roberto;
SCHEINOST A.C.;
BUTORIN S. M.;
KALMYKOV Stepan;
2019-12-05
WILEY-V C H VERLAG GMBH
JRC117982
1433-7851 (online),
https://onlinelibrary.wiley.com/doi/full/10.1002/anie.201911637,
https://publications.jrc.ec.europa.eu/repository/handle/JRC117982,
10.1002/anie.201911637 (online)(ENG),
10.1002/ange.201911637 (online)(GER),
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