Synthesis of Nanocrystalline PuO2 by Hydrothermal and Thermal Decomposition of Pu(IV) Oxalate: A Comparative Study

In recent years, the hydrothermal conversion of actinide (IV) oxalates into nanometric actinide dioxides (AnO2) has begun to be investigated as an alternative to the widely implemented thermal decomposition method. We present here a comparison between the hydrothermal and the conventional thermal de...

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Bibliographic Details
Published in:Nanomaterials (Basel, Switzerland) Switzerland), 2023-01, Vol.13 (2), p.340
Main Authors: Baumann, Viktoria, Popa, Karin, Walter, Olaf, Rivenet, Murielle, Senentz, Gérald, Morel, Bertrand, Konings, Rudy J.M.
Format: Article
Language:English
Subjects:
Acids
Carbon
Carbon content
Chemical Sciences
Comparative studies
Conversion
Decomposition
Ethanol
Material chemistry
Morphology
Nanoparticles
nanopowder
Nanotechnology
Oxalates
Oxalic acid
Particle size
Plutonium dioxide
Scanning electron microscopy
Sintering
Solid solutions
Thermal decomposition
wet chemistry route
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Summary:In recent years, the hydrothermal conversion of actinide (IV) oxalates into nanometric actinide dioxides (AnO2) has begun to be investigated as an alternative to the widely implemented thermal decomposition method. We present here a comparison between the hydrothermal and the conventional thermal decomposition of Pu(IV) oxalate in terms of particle size, morphology and residual carbon content. A parametric study was carried out in order to define the temperature and time applied in the hydrothermal conversion of tetravalent Pu-oxalate into PuO2 and to optimize the reaction conditions.
ISSN:2079-4991
2079-4991
DOI:10.3390/nano13020340