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High-Entropy NASICON Phosphates (Na.sub.3./sub.M.sub.2./sub.(PO.sub.4./sub.).sub.3./sub. and NaMPO.sub.4./sub.O.sub.x./sub., M = Ti, V, Mn, Cr, and Zr) for Sodium Electrochemistry
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SYSNO ASEP 0557580 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title High-Entropy NASICON Phosphates (Na3M2(PO4)3 and NaMPO4Ox, M = Ti, V, Mn, Cr, and Zr) for Sodium Electrochemistry Author(s) Wu, B. (CZ)
Hou, G. (CZ)
Kovalska, E. (CZ)
Mazánek, V. (CZ)
Marvan, P. (CZ)
Liao, L. (CZ)
Děkanovský, L. (CZ)
Sedmidubský, D. (CZ)
Marek, I. (CZ)
Hervoches, Charles (UJF-V) RID, ORCID, SAI
Sofer, Z. (CZ)Number of authors 11 Source Title Inorganic Chemistry. - : American Chemical Society - ISSN 0020-1669
Roč. 61, č. 9 (2022), s. 4092-4101Number of pages 10 s. Publication form Print - P Language eng - English Country US - United States Keywords batteries ; diffractions ; transition metals OECD category Inorganic and nuclear chemistry Research Infrastructure Reactors LVR-15 and LR-0 II - 90120 - Centrum výzkumu Řež s.r.o.
CANAM II - 90056 - Ústav jaderné fyziky AV ČR, v. v. i.Method of publishing Limited access Institutional support UJF-V - RVO:61389005 UT WOS 000793863700030 EID SCOPUS 85125578796 DOI 10.1021/acs.inorgchem.1c03861 Annotation High-entropy materials, with complex compositions and unique cocktail characteristics, have recently drawn significant attention. Additionally, a family of sodium super ion conductors (NASICONs)-structured phosphates in energy storage areas shows a comprehensive application for traditional alkaline ion batteries and, in particular, solid-state electrolytes. However, there is no precedent in fabricating this kind of NASICON-type high-entropy phase. Here, we report the successful fabrication of two well-crystallized high-entropy phosphates, namely, Na-3(Ti0.2V0.2Mn0.2Cr0.2Zr0.2)(2)(PO4)(3) (HE-N3M2P3) and Na(Ti0.2V0.2Mn0.2Cr0.2Zr0.2)(2)PO4Ox (HE-NMP). The prepared materials in which the transition metals (TMs) of Ti, V, Mn, Cr, and Zr occupy the same 12c Wykoff position can form a structure analogous to R (3) over barc Na3V2(PO4)(3) that is carefully determined by X-ray diffraction, neutron diffraction, and transmission electron microscopy. Further, their performance for sodium ion batteries and sodium-based solid-state electrolytes was evaluated. The HE-N3M2P3 might exhibit a promising electrochemical performance for sodium storage in terms of its structure resembling that of Na3V2(PO4)(3). Meanwhile, the HE-NMP shows considerable electrochemical activity with numerous broad redox ranges during extraction and insertion of Na+, related to the coexistence of several TM elements. The evaluated temperature-dependent ionic conductivity for HE-NMP solid electrolyte varies from 10(-6) to 10(-5) S cm(-1) from room temperature to 398.15 K, offering high potential for energy storage applications as a new high-entropy system. Workplace Nuclear Physics Institute Contact Markéta Sommerová, sommerova@ujf.cas.cz, Tel.: 266 173 228 Year of Publishing 2023 Electronic address https://doi.org/10.1021/acs.inorgchem.1c03861
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