Title: Synthesis and characterization of nanocrystalline U1-xPuxO2(+y) mixed oxides
Authors: KAURIC GUILHEMWALTER OLAFBECK AARONSCHACHERL BIANCADIESTE BLANCO OLIVERVIGIER JEAN-FRANCOISZULEGER EVELYNVITOVA TONYAPOPA KARIN
Citation: Materials Today Advances vol. 8 p. 100105
Publisher: ELSEVIER
Publication Year: 2020
JRC N°: JRC119717
ISSN: 2590-0498 (online)
URI: https://publications.jrc.ec.europa.eu/repository/handle/JRC119717
DOI: 10.1016/j.mtadv.2020.100105
Type: Articles in periodicals and books
Abstract: We report here the first synthesis of mixed oxide U1-xPuxO2(þy) nanoparticles. The obtained nanopowders were characterized by X-ray diffraction, thermal ionization mass spectrometry, transmission electron microscopy, Raman spectroscopy, and U M4 edge high-energy-resolution X-ray absorption near edge structure (HR-XANES). The HR-XANES spectra give evidence for the partial oxidation of UIV to UV. This novel route toward the formation of actinide-actinide solid solution opens research opportunities that are not accessible using bulk materials. We give details on the X-ray diffraction study on plutonium oxalate hexahydrate, as a reagent for the synthesis of such nanoparticles.
JRC Directorate:Nuclear Safety and Security

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