First observation of [Pu6(OH)4O4]12+ cluster during the hydrolytic formation of PuO2 nanoparticles using H/D kinetic isotope effect

Manon Cot-Auriol; Matthieu Virot; Thomas Dumas; Olivier Diat; Denis Menut; Philippe Moisy; Sergey I. Nikitenko

doi:10.1039/D2CC04990B

You do not have JavaScript enabled. Please enable JavaScript to access the full features of the site or access our non-JavaScript page.

First observation of [Pu₆(OH)₄O₄]¹²⁺ cluster during the hydrolytic formation of PuO₂ nanoparticles using H/D kinetic isotope effect†

Manon Cot-Auriol,^a Matthieu Virot,

*^a Thomas Dumas,

^b Olivier Diat,

^a Denis Menut,

^c Philippe Moisy

^b and Sergey I. Nikitenko

Author affiliations

* Corresponding authors

^a ICSM, Univ Montpellier, CEA, CNRS, ENSCM, Marcoule, France
E-mail: matthieu.virot@cea.fr

^b CEA, DES, ISEC, DMRC, Univ Montpellier, Marcoule, France

^c Synchrotron SOLEIL, L’Orme des Merisiers, Départementale 128, 91190 Saint Aubin, France

Abstract

New insights are provided about the formation mechanism of PuO₂ nanoparticles (NPs) by investigating an unprecedented kinetic isotope effect observed during their hydrolytic synthesis in H₂O or D₂O and attributed to OH/OD zero point energy difference. The signature of a Pu(IV) oxo–hydroxo hexanuclear cluster, appearing as an important intermediate during the formation of the 2 nm PuO₂ NPs (synchrotron SAXS/XAS), is further revealed indicating that their formation is controlled by H-transfer reactions occurring during hydroxo to oxo-bridge conversions.

Download options Please wait...

Supplementary files

Supplementary information PDF (755K)

Article information

DOI: https://doi.org/10.1039/D2CC04990B
Article type: Communication
Submitted: 09 Sep 2022
Accepted: 26 Oct 2022
First published: 26 Oct 2022
This article is Open Access

Download Citation

Chem. Commun., 2022,58, 13147-13150

Permissions

Request permissions

First observation of [Pu₆(OH)₄O₄]¹²⁺ cluster during the hydrolytic formation of PuO₂ nanoparticles using H/D kinetic isotope effect

M. Cot-Auriol, M. Virot, T. Dumas, O. Diat, D. Menut, P. Moisy and S. I. Nikitenko, Chem. Commun., 2022, 58, 13147 DOI: 10.1039/D2CC04990B

This article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence. You can use material from this article in other publications, without requesting further permission from the RSC, provided that the correct acknowledgement is given and it is not used for commercial purposes.

To request permission to reproduce material from this article in a commercial publication, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party commercial publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Social activity

Fetching data from CrossRef.
This may take some time to load.

Chemical Communications