Hydrothermal conversion of cerium oxalate to CeO2: a parade of oxalate and water coordination modes

Navid Assi; Christophe Lahoud; Petr Brázda; Dominika Zákutná; Daniel N. Rainer; Jakub Hraníček; Jan Rohlíček; Václav Tyrpekl

doi:10.1039/D3NJ04635D

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Hydrothermal conversion of cerium oxalate to CeO₂: a parade of oxalate and water coordination modes†

Navid Assi,^a Christophe Lahoud,^b Petr Brázda,^c Dominika Zákutná,^a Daniel N. Rainer,^d Jakub Hraníček,^e Jan Rohlíček^c and Václav Tyrpekl

*^a

Author affiliations

* Corresponding authors

^a Department of Inorganic Chemistry, Faculty of Science, Charles University, Hlavova, 2030/8, Prague 12800, Czech Republic
E-mail: vaclav.tyrpekl@natur.cuni.cz

^b Université Aix-Marseille, Faculty of Science, Site St. Jérôme, 52 Avenue Escadrille Normandie Niemen, Marseille 13013, France

^c Department of Structure Analysis, Institute of Physics of the Czech Academy of Sciences, Prague 18221, Czech Republic

^d Department of Physical and Macromolecular Chemistry, Faculty of Science, Charles University, Hlavova, 2030/8, Prague 12800, Czech Republic

^e Department of Analytical Chemistry, Faculty of Science, Charles University, Hlavova, 2030/8, Prague 12800, Czech Republic

Abstract

Hydrothemal conversion of lanthanide/actinide oxalate salts to nanocrystalline oxide has gained technological importance in the chemistry of f-elements. Herein, we present a study describing the mechanism behind the hydrothermal recrystallization and decomposition of cerium (and Ce-Gd) oxalate to oxide. Structural determination of all intermediate nanocrystalline products was possible thanks to three-dimensional electron diffraction. This work reveals the enormous structural abilities of simple oxalate ligands.

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DOI: https://doi.org/10.1039/D3NJ04635D
Article type: Communication
Submitted: 04 Oct 2023
Accepted: 07 Dec 2023
First published: 11 Dec 2023
This article is Open Access

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New J. Chem., 2024,48, 1071-1075

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Hydrothermal conversion of cerium oxalate to CeO₂: a parade of oxalate and water coordination modes

N. Assi, C. Lahoud, P. Brázda, D. Zákutná, D. N. Rainer, J. Hraníček, J. Rohlíček and V. Tyrpekl, New J. Chem., 2024, 48, 1071 DOI: 10.1039/D3NJ04635D

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