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dc.contributor.authorWinter, Edda
dc.contributor.authorSeipel, Philipp
dc.contributor.authorZinkevich, Tatiana
dc.contributor.authorIndris, Sylvio
dc.contributor.authorDavaasuren, Bambar
dc.contributor.authorTietz, Frank
dc.contributor.authorVogel, Michael
dc.date.accessioned2021-10-12T08:29:36Z
dc.date.available2021-10-12T08:29:36Z
dc.date.issued2021-10-11
dc.date.submitted2021-08-11
dc.identifier.citationWinter, E., Seipel, P., Zinkevich, T., Indris, S., Davaasuren, B., Tietz, F., & Vogel, M. (2021). Nuclear magnetic resonance (NMR) studies of sintering effects on the lithium ion dynamics in Li1.5Al0.5Ti1.5(PO4)3. Zeitschrift Für Physikalische Chemie, 0(0). doi:10.1515/zpch-2021-3109
dc.identifier.issn2196-7156
dc.identifier.issn0942-9352
dc.identifier.doi10.1515/zpch-2021-3109
dc.identifier.urihttp://hdl.handle.net/10754/672808
dc.description.abstractVarious nuclear magnetic resonance (NMR) methods are combined to study the structure and dynamics of Li1.5Al0.5Ti1.5(PO4)3 (LATP) samples, which were obtained from sintering at various temperatures between 650 and 900 °C. 6Li, 27Al, and 31P magic angle spinning (MAS) NMR spectra show that LATP crystallites are better defined for higher calcination temperatures. Analysis of 7Li spin-lattice relaxation and line-shape changes indicates the existence of two species of lithium ions with clearly distinguishable jump dynamics, which can be attributed to crystalline and amorphous sample regions, respectively. An increase of the sintering temperature leads to higher fractions of the fast lithium species with respect to the slow one, but hardly affects the jump dynamics in either of the phases. Specifically, the fast and slow lithium ions show jumps in the nanoseconds regime near 300 and 700 K, respectively. The activation energy of the hopping motion in the LATP crystallites amounts to ca. 0.26 eV. 7Li field-gradient diffusometry reveals that the long-range ion migration is limited by the sample regions featuring slow transport. The high spatial resolution available from the high static field gradients of our setup allows the observation of the lithium ion diffusion inside the small (<100 nm) LATP crystallites, yielding a high self-diffusion coefficient of D = 2 × 10−12 m2/s at room temperature.
dc.publisherWalter de Gruyter GmbH
dc.relation.urlhttps://www.degruyter.com/document/doi/10.1515/zpch-2021-3109/html
dc.rightsArchived with thanks to Zeitschrift für Physikalische Chemie
dc.titleNuclear magnetic resonance (NMR) studies of sintering effects on the lithium ion dynamics in Li1.5Al0.5Ti1.5(PO4)3
dc.typeArticle
dc.contributor.departmentPhysical Characterization
dc.identifier.journalZeitschrift für Physikalische Chemie
dc.eprint.versionPost-print
dc.contributor.institutionInstitute for Condensed Matter Physics, Technische Universität Darmstadt , Hochschulstr., 6 , D-64289 Darmstadt , Germany
dc.contributor.institutionKarlsruhe Institute of Technology (KIT), Institute for Applied Materials - Energy Storage Systems (IAM-ESS) , Hermann-von-Helmholtz-Platz, 1 , D-76344 Eggenstein-Leopoldshafen , Germany
dc.contributor.institutionForschungszentrum Jülich GmbH, IEK-1: Materials Synthesis and Processing, Forschungszentrum Jülich GmbH, IEK-12: Helmholtz-Institute Münster , D-52425 Jülich , Germany
kaust.personDavaasuren, Bambar
dc.date.accepted2021-09-15


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