A chemical redox reaction to generate rock salt- type materials the case of Na3V2O5

E. Adamczyk (1) , E. Anger (1) , M. Freire (1) , Valérie Pralong (1)

1 CRISMAT - Laboratoire de cristallographie et sciences des matériaux

Chemical redox reactions are extremely efficient to prepare fully reduced or oxidized phases that are formed during the topotactic insertion/extraction of alkaline ions. Herein, we report these reactions and discuss the possibility to generate new ordered or disordered rock salt-type structures depending on the structure of the mother phase. We have shown that a disordered rock salt-type structure is formed when the transition element is located at the tetrahedral site, as exemplified by the formation of Na3V2O5 upon chemical reduction of V2O5.

Domaines: Matériaux; Matériaux; Chimie inorganique

E. Adamczyk, E. Anger, M. Freire, Valérie Pralong. A chemical redox reaction to generate rock salt- type materials the case of Na3V2O5. Dalton Transactions, 2018, 47 (9), pp.3112-3118. ⟨10.1039/c7dt04377e⟩. ⟨hal-02174420⟩