Design of metastable oxychalcogenide phases by topochemical (de)intercalation of sulfur in La2O2S2

Shunsuke Sasaki, Maria Teresa Caldes, Catherine Guillot-Deudon, Isabelle Braems, Gwladys Steciuk, Lukáš Palatinus, Eric Gautron, Gilles Frapper, Etienne Janod, Benoît Corraze, Stéphane Jobic () and Laurent Cario ()
Additional contact information
Shunsuke Sasaki: Université de Nantes, CNRS, Institut des Matériaux Jean Rouxel, IMN
Maria Teresa Caldes: Université de Nantes, CNRS, Institut des Matériaux Jean Rouxel, IMN
Catherine Guillot-Deudon: Université de Nantes, CNRS, Institut des Matériaux Jean Rouxel, IMN
Isabelle Braems: Université de Nantes, CNRS, Institut des Matériaux Jean Rouxel, IMN
Gwladys Steciuk: Institute of Physics ASCR, v.v.i.
Lukáš Palatinus: Institute of Physics ASCR, v.v.i.
Eric Gautron: Université de Nantes, CNRS, Institut des Matériaux Jean Rouxel, IMN
Gilles Frapper: Institut de Chimie des Milieux et Matériaux de Poitiers
Etienne Janod: Université de Nantes, CNRS, Institut des Matériaux Jean Rouxel, IMN
Benoît Corraze: Université de Nantes, CNRS, Institut des Matériaux Jean Rouxel, IMN
Stéphane Jobic: Université de Nantes, CNRS, Institut des Matériaux Jean Rouxel, IMN
Laurent Cario: Université de Nantes, CNRS, Institut des Matériaux Jean Rouxel, IMN

Nature Communications, 2021, vol. 12, issue 1, 1-8

Abstract: Abstract Designing and synthesising new metastable compounds is a major challenge of today’s material science. While exploration of metastable oxides has seen decades-long advancement thanks to the topochemical deintercalation of oxygen as recently spotlighted with the discovery of nickelate superconductor, such unique synthetic pathway has not yet been found for chalcogenide compounds. Here we combine an original soft chemistry approach, structure prediction calculations and advanced electron microscopy techniques to demonstrate the topochemical deintercalation/reintercalation of sulfur in a layered oxychalcogenide leading to the design of novel metastable phases. We demonstrate that La2O2S2 may react with monovalent metals to produce sulfur-deintercalated metastable phases La2O2S1.5 and oA-La2O2S whose lamellar structures were predicted thanks to an evolutionary structure-prediction algorithm. This study paves the way to unexplored topochemistry of mobile chalcogen anions.

Date: 2021
References: Add references at CitEc
Citations:

Downloads: (external link)
https://www.nature.com/articles/s41467-021-23677-w Abstract (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:nat:natcom:v:12:y:2021:i:1:d:10.1038_s41467-021-23677-w

Ordering information: This journal article can be ordered from
https://www.nature.com/ncomms/

DOI: 10.1038/s41467-021-23677-w

Access Statistics for this article

Nature Communications is currently edited by Nathalie Le Bot, Enda Bergin and Fiona Gillespie

More articles in Nature Communications from Nature
Bibliographic data for series maintained by Sonal Shukla () and Springer Nature Abstracting and Indexing ().