Synthesis and multi-scale properties of PuO₂ nanoparticles: recent advances and open questions.

Although the correlation does not provide a clear trend, significant variations in the cell parameters reported for PuO 2 nanoparticles can be pointed out when compared to the bulk PuO 2 reference reported at 5.396 Å. 45 Furthermore, one can note that the reference value is almost exclusively lower than the ones reported for the nanoparticles, strengthening the observation of a potential negative surface stress for nanosized PuO 2 .

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