Synthesis of size-controlled UO 2 microspheres from the hydrothermal conversion of U( iv ) aspartate

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A wet chemistry route towards UO 2 spherical particles was designed through the hydrothermal conversion of uranium( iv ) aspartate. A multi-parametric study led us to point out the conditions leading to monodisperse and size-controlled particles in the 400–2500 nm range. This simple protocol paves the way to applications in various scientific areas.