Operando Spectroscopic Investigation of the Re2O7.2H2O Adduct obtained by Controlled Hydration of Re2O7

Xavier Sécordel; Shreya Nandi; Asma Tougerti; Sylvain Cristol; Jean-François Paul; Valérie Briois; Camille La Fontaine; Elise Berrier

doi:10.1002/cphc.202400432

Operando Spectroscopic Investigation of the Re₂O₇.2H₂O Adduct obtained by Controlled Hydration of Re₂O₇

Chemphyschem. 2024 Sep 30:e202400432. doi: 10.1002/cphc.202400432. Online ahead of print.

Authors

Xavier Sécordel^{1

2}, Shreya Nandi¹, Asma Tougerti¹, Sylvain Cristol¹, Jean-François Paul¹, Valérie Briois³, Camille La Fontaine³, Elise Berrier¹

Affiliations

¹ Univ. Lille, CNRS, Centrale Lille, ENSCL, Univ. Artois, UMR 8181 - UCCS - Unité de Catalyse et Chimie du Solide, F-59000, Lille, France.
² Univ. Littoral Côte d'Opale, UR 4493, LPCA, IRenE, 145 Avenue Maurice Schumann, F-59140, Dunkerque, France.
³ Synchrotron SOLEIL, L'Orme des merisiers, Saint Aubin, F-91192, Gif-sur-Yvette.

PMID: 39347606
DOI: 10.1002/cphc.202400432

Abstract

We provide here a comprehensive investigation spectroscopic of the controlled hydration of Re₂O₇ using Raman, Fourier-Transform Infrared (FTIR) and X-Rays Absorption (XAS) techniques in complement with ab initio modelling for confirming the spectral assignments. Hence, the Raman signature of Re₂O₇.2H₂O was obtained, and the evolution kinetics was investigated to provide a detailed description of the hydration process.

Keywords: Raman spectroscopy; aqueous adduct; hydration; in situ; rhenium oxide.