Titre :

Rigidity-Driven Structural Isomers in the NaCl–Ga2S3 System: Implications for Energy Storage

Auteur(s) :

Bokova, Maria [Auteur]
Laboratoire de Physico-Chimie de l'Atmosphère [LPCA]
Kassem, Mohammad [Auteur]
Laboratoire de Physico-Chimie de l'Atmosphère [LPCA]
Usuki, Takeshi [Auteur]
Yamagata University
Tverjanovich, Andrey [Auteur]
St Petersburg State University [SPbU]
Sokolov, Anton [Auteur]
Laboratoire de Physico-Chimie de l'Atmosphère [LPCA]
Fontanari, Daniele [Auteur]
Laboratoire de Physico-Chimie de l'Atmosphère [LPCA]
Hannon, Alex C. [Auteur]
ISIS Facility
Benmore, Chris J. [Auteur]
Advanced Photon Source [ANL] [APS]
Alekseev, Igor [Auteur]
Laboratoire de Physico-Chimie de l'Atmosphère [LPCA]
Kohara, Shinji [Auteur]
University of Hyogo
Roussel, Pascal [Auteur]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Khomenko, Maxim [Auteur]
Lomonosov Moscow State University = Université d'État Lomonossov de Moscou [Moscou] [MSU]
Ohara, Koji [Auteur]
Shimane University
Onodera, Yohei [Auteur]
University of Hyogo
Cuisset, Arnaud [Auteur]
Laboratoire de Physico-Chimie de l'Atmosphère [LPCA]
Bychkov, Eugene [Auteur]
Laboratoire de Physico-Chimie de l'Atmosphère [LPCA]

Titre de la revue :

Small Science

Nom court de la revue :

Small Sci.

Pagination :

2400371

Éditeur :

Wiley

Date de publication :

2024-10-01

ISSN :

2688-4046

Mot(s)-clé(s) en anglais :

fast sodium halide conductors
network rigidity
sodium diffusion
structural isomers

Discipline(s) HAL :

Chimie/Chimie inorganique

Résumé en anglais : [en]

Alternative energy sources require the search for innovative materials with promising functionalities. Systems with unusual chemical properties represent an insufficiently explored domain, concealing unexpected features. ...
Lire la suite >Alternative energy sources require the search for innovative materials with promising functionalities. Systems with unusual chemical properties represent an insufficiently explored domain, concealing unexpected features. Using diffraction and Raman spectroscopy over a wide temperature range, supported by first-principles simulations, a rare phenomenon is unveiled: phase-dependent chemical interactions between binary components in the NaCl–Ga2S3 system. In this unique occurrence, previously intact binary crystalline species transform upon melting into mixed liquid structural isomers, forming bonds with new partners. The chemical combinatorics appears to be fully reversible for stable crystals and liquids. Despite this, rapidly frozen glasses out of thermodynamic equilibrium remain in a metastable isomeric state, offering remarkable properties, particularly a high room-temperature Na+ conductivity, comparable to the best sodium halide superionic conductors and therefore encouraging for sodium solid-state batteries and energy applications. A rigidity paradigm is responsible for the observed phenomenon, as the extremely constrained Ga2S3 crystal lattice does not survive viscous flow, breaking up at a short-range level. The removal of rigidity constraints and dense packing leads to a significant increase in empty space, which is the origin of high sodium diffusivity. Broadly, the rigidity-driven structural isomerism opens up an inspiring path to the discovery of atypical materials.Lire moins >

Langue :

Anglais

Comité de lecture :

Oui

Audience :

Internationale

Vulgarisation :

Non

Établissement(s) :

Université de Lille
CNRS
Centrale Lille
ENSCL
Univ. Artois

Collections :

• Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181

Équipe(s) de recherche :

Matériaux inorganiques, structures, systèmes et propriétés (MISSP)

Date de dépôt :

2024-11-24T22:01:31Z
2024-12-04T08:33:08Z