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Bouteiller, H., Fontaine, B., Mori, T., Gascoin, F., Halet, J.-F. & Berthebaud, D. (2023) Synthesis, Crystal and Electronic Structure, and Thermal Conductivity Investigation of the Hollandite-like CsxCr5Te8 Phases (0.73 < x < 1). Inorg. Chem. 62 16905–16912.
Added by: Richard Baschera (2023-11-22 13:43:55) Last edited by: Richard Baschera (2023-11-22 13:46:05) |
| Type de référence: Article DOI: 10.1021/acs.inorgchem.3c02590 Numéro d'identification (ISBN etc.): 0020-1669 Clé BibTeX: Bouteiller2023 Voir tous les détails bibliographiques  |
Catégories: INTERNATIONAL, MIOPS Créateurs: Berthebaud, Bouteiller, Fontaine, Gascoin, Halet, Mori Collection: Inorg. Chem. |
Consultations : 1/40
Indice de consultation : 5% Indice de popularité : 1.25% |
| Liens URLs https://doi.org/10 ... .inorgchem.3c02590 |
| Résumé |
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This article presents a comprehensive study on the synthesis and structural and thermal conductivity properties of cesium-inserted chromium tellurides of formula CsxCr5Te8. Single crystals of three different compositions (x = 0.73, 0.91, and 0.97) were successfully synthesized and suggested the existence of a solid solution in the range 0.73 < x < 1. Through a detailed single-crystal characterization, the complete structure of these compounds is determined, revealing a distinct B-type hollandite-like structural form derived from the hollandite structure, in contrast to the more commonly observed A-type pseudo-hollandite in AM(5)X(8)-type chalcogenides (A = cation, M = transition metal, and X = chalcogen). Periodic density functional theory calculations predict the Cs0.73Cr5Te8 composition as the most stable, with a metallic conductive behavior. The thermal conductivity of bulk CsxCr5Te8 samples is measured to be 1.4 W m(-1) K-1 at 300 K and increases with temperature up to 2 W m(-1) K-1 at 673 K. |
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Publisher: American Chemical Society
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