Kinetically Stabilized Cation Arrangement in Li₃ YCl₆ Superionic Conductor during Solid-State Reaction.

ABSTRACT: The main approach for exploring metastable materials is via trial-and-error synthesis, and there is limited understanding of how metastable materials are kinetically stabilized. In this study, a metastable phase superionic conductor, β-Li₃ YCl₆ , is discovered through in situ X-ray diffraction after heating a mixture of LiCl and YCl₃ powders. While Cl^- arrangement is represented as a hexagonal close packed structure in both metastable β-Li₃ YCl₆ synthesized below 600 K and stable α-Li₃ YCl₆ above 600 K, the arrangement of Li⁺ and Y³⁺ in β-Li₃ YCl₆ determined by neutron diffraction brought about the cell with a 1/√3 a-axis and a similar c-axis of stable α-Li

SUBMITTER: Ito H 

PROVIDER: S-EPMC8336504 | biostudies-literature | 2021 Aug

REPOSITORIES: biostudies-literature