Design of metastable oxychalcogenide phases by topochemical (de)intercalation of sulfur in La.sub.2./sub.O.sub.2./sub.S.sub.2./sub.

0543546 - FZÚ 2022 RIV GB eng J - Journal Article
Sasaki, S. - Caldes, M.T. - Guillot-Deudon, C. - Braems, I. - Steciuk, Gwladys - Palatinus, Lukáš - Gautron, E. - Frapper, G. - Janod, E. - Corraze, B. - Jobic, S. - Cario, L.
Design of metastable oxychalcogenide phases by topochemical (de)intercalation of sulfur in La₂O₂S₂.
Nature Communications. Roč. 12, č. 1 (2021), č. článku 3605. E-ISSN 2041-1723
R&D Projects: GA MŠMT LM2018110; GA MŠMT(CZ) EF16_019/0000760
Grant - others:OP VVV - SOLID21(XE) CZ.02.1.01/0.0/0.0/16_019/0000760
Institutional support: RVO:68378271
Keywords : metastable oxides * nickelate superconductor * crystal structure * electron microscopy
OECD category: Condensed matter physics (including formerly solid state physics, supercond.)
Impact factor: 17.694, year: 2021
Method of publishing: Open access

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 ox ychalcogenide leading to the design of novel metastable phases.

Permanent Link: http://hdl.handle.net/11104/0320743