Open AccessAlkali-Glass Behavior in Honeycomb-Type Layered Li3–xNaxNi2SbO6 Solid Solution
Author(s) -
Coélio Vallée,
Matthieu Saubanère,
Paula Sanz Camacho,
Yohan Biecher,
Bernard Fraisse,
Emmanuelle Suard,
Gwenaëlle Rousse,
Dany Carlier,
Romain Berthelot
Publication year - 2019
Publication title -
inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 233
eISSN - 1520-510X
pISSN - 0020-1669
DOI - 10.1021/acs.inorgchem.9b01385
Subject(s) - alkali metal , chemistry , lithium (medication) , neutron diffraction , solid solution , x ray crystallography , diffraction , crystallography , oxide , solid state nuclear magnetic resonance , spectroscopy , inorganic chemistry , crystal structure , nuclear magnetic resonance , organic chemistry , medicine , physics , quantum mechanics , optics , endocrinology
Layered oxide compositions Li 3- x Na x Ni 2 SbO 6 have been prepared by solid-state synthesis. A complete solid solution is evidenced and characterized by X-ray and neutron diffraction as well as 7 Li and 23 Na solid-state nuclear magnetic resonance spectroscopy. The transition-metal layer is characterized by the classic honeycomb Ni 2+ /Sb 5+ ordering, whereas a more uncommon randomly mixed occupancy of lithium and sodium is evidenced within the alkali interslab space. In situ X-ray diffraction and density functional theory calculations show that this alkali disordered feature is entropically driven. Fast cooling then appears as a synthesis root to confine bidimensional alkali glass within crystalline layered oxides.
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