Details
| Originalsprache | Englisch |
|---|---|
| Seiten (von - bis) | 20023-20032 |
| Seitenumfang | 10 |
| Fachzeitschrift | Journal of the American Chemical Society |
| Jahrgang | 147 |
| Ausgabenummer | 23 |
| Frühes Online-Datum | 2 Juni 2025 |
| Publikationsstatus | Veröffentlicht - 11 Juni 2025 |
Abstract
Self-diffusion processes of small atoms or ions play a crucial role in many areas of research. The unique crystal structure of LiTi 2(PS 4) 3 (LTPS) presents a variety of energetically inequivalent diffusion pathways for small Li + charge carriers and has resulted in one of the highest Li + diffusion coefficients. Investigating these pathways individually at the atomic scale poses significant challenges, especially for probing jump processes. In this study, we utilized nuclear spin relaxation techniques down to cryogenic temperatures (10 K) to reveal unprecedented details about both long-range and short-range Li + dynamics. The temperature-dependent 7Li NMR spin-lattice relaxation (SLR) rate exhibits a series of diffusion-induced peaks, allowing the extraction of activation energies and jump rates. Due to the exceptionally fast localized Li + exchange processes in LTPS, temperatures as low as 50 K are required to freeze Li + dynamics, on the SLR time scale, entirely within the ring-like cages of the LTPS structure.
ASJC Scopus Sachgebiete
- Chemische Verfahrenstechnik (insg.)
- Katalyse
- Chemie (insg.)
- Allgemeine Chemie
- Biochemie, Genetik und Molekularbiologie (insg.)
- Biochemie
- Chemische Verfahrenstechnik (insg.)
- Kolloid- und Oberflächenchemie
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in: Journal of the American Chemical Society, Jahrgang 147, Nr. 23, 11.06.2025, S. 20023-20032.
Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review
}
TY - JOUR
T1 - Unraveling Ultrafast Li-Ion Dynamics in the Solid Electrolyte LiTi2(PS4)3 by NMR Down to Cryogenic Temperatures
AU - Tapler, Denise
AU - Gadermaier, Bernhard
AU - Spychala, Jonas
AU - Stainer, Florian
AU - Marko, Annika
AU - Königsreiter, Jana
AU - Hogrefe, Katharina
AU - Heitjans, Paul
AU - Wilkening, H. Martin R.
N1 - Publisher Copyright: © 2025 The Authors. Published by American Chemical Society.
PY - 2025/6/11
Y1 - 2025/6/11
N2 - Self-diffusion processes of small atoms or ions play a crucial role in many areas of research. The unique crystal structure of LiTi 2(PS 4) 3 (LTPS) presents a variety of energetically inequivalent diffusion pathways for small Li + charge carriers and has resulted in one of the highest Li + diffusion coefficients. Investigating these pathways individually at the atomic scale poses significant challenges, especially for probing jump processes. In this study, we utilized nuclear spin relaxation techniques down to cryogenic temperatures (10 K) to reveal unprecedented details about both long-range and short-range Li + dynamics. The temperature-dependent 7Li NMR spin-lattice relaxation (SLR) rate exhibits a series of diffusion-induced peaks, allowing the extraction of activation energies and jump rates. Due to the exceptionally fast localized Li + exchange processes in LTPS, temperatures as low as 50 K are required to freeze Li + dynamics, on the SLR time scale, entirely within the ring-like cages of the LTPS structure.
AB - Self-diffusion processes of small atoms or ions play a crucial role in many areas of research. The unique crystal structure of LiTi 2(PS 4) 3 (LTPS) presents a variety of energetically inequivalent diffusion pathways for small Li + charge carriers and has resulted in one of the highest Li + diffusion coefficients. Investigating these pathways individually at the atomic scale poses significant challenges, especially for probing jump processes. In this study, we utilized nuclear spin relaxation techniques down to cryogenic temperatures (10 K) to reveal unprecedented details about both long-range and short-range Li + dynamics. The temperature-dependent 7Li NMR spin-lattice relaxation (SLR) rate exhibits a series of diffusion-induced peaks, allowing the extraction of activation energies and jump rates. Due to the exceptionally fast localized Li + exchange processes in LTPS, temperatures as low as 50 K are required to freeze Li + dynamics, on the SLR time scale, entirely within the ring-like cages of the LTPS structure.
UR - http://www.scopus.com/inward/record.url?scp=105007364891&partnerID=8YFLogxK
U2 - 10.1021/jacs.5c05253
DO - 10.1021/jacs.5c05253
M3 - Article
VL - 147
SP - 20023
EP - 20032
JO - Journal of the American Chemical Society
JF - Journal of the American Chemical Society
SN - 0002-7863
IS - 23
ER -