dc.identifier.uri |
https://www.repo.uni-hannover.de/handle/123456789/15197 |
|
dc.identifier.uri |
https://doi.org/10.15488/15078 |
|
dc.contributor.author |
Wilkening, Martin
|
eng |
dc.contributor.author |
Heitjans, Paul
|
eng |
dc.date.accessioned |
2023-10-20T11:12:52Z |
|
dc.date.available |
2023-10-20T11:12:52Z |
|
dc.date.issued |
2007-08-29 |
|
dc.identifier.citation |
Wilkening, M.; Heitjans, P.: Comparison of 3D and 2D Li Diffusion in Cubic and Hexagonal LixTiS2 – A Study by Solid State 7Li NMR Methods. In: Diffusion Fundamentals 6 (2007), Special Issue “Diffusion Fundamentals II”, 40. URL: https://diffusion-fundamentals.org/journal/6/2007/40.pdf |
eng |
dc.description.abstract |
Li diffusion in spinel-type structured cubic and hexagonal LixTiS2 with x = 0.6 and
0.7, respectively, was investigated by solid state NMR spectroscopy. In layered hexagonal LixTiS2, Li diffusion is known to be confined to the van-der-Waals gap between the TiS2 planes, i. e., it is two-dimensional (2D). In cubic LixTiS2, however, Li diffusion takes place in the three-dimensional (3D) interstitial space formed by the TiS6-polyhedra. Both polymorphs form a unique pair for studying the effects of dimensionality on Li diffusion within a host structure of the same chemical composition. 7Li spin-alignment echo and spin-lattice relaxation NMR methods were applied to measure Li jump rates. Additionally, solid echo NMR spectroscopy was used to estimate the Li diffusivity in cubic Li0.6TiS2. The activation energies for Li jumps in the two materials are very similar. Nevertheless, Li diffusion in the 3D host is slower than in the layered modification by a factor of about ten. |
eng |
dc.language.iso |
eng |
eng |
dc.publisher |
Leipzig : Universität Leipzig |
|
dc.relation.ispartofseries |
Diffusion Fundamentals 6 (2007), Special Issue “Diffusion Fundamentals II” |
eng |
dc.rights |
Es gilt deutsches Urheberrecht. Das Dokument darf zum eigenen Gebrauch kostenfrei genutzt, aber nicht im Internet bereitgestellt oder an Außenstehende weitergegeben werden. |
eng |
dc.subject |
Li diffusion |
eng |
dc.subject |
dimensionality |
eng |
dc.subject |
solid state NMR |
eng |
dc.subject |
spin-lattice relaxation |
eng |
dc.subject |
spin-alignment echo |
eng |
dc.subject |
ultraslow motion |
eng |
dc.subject |
cubic LixTiS2 |
eng |
dc.subject.classification |
Konferenzschrift |
eng |
dc.subject.ddc |
530 | Physik
|
eng |
dc.title |
Comparison of 3D and 2D Li Diffusion in Cubic and Hexagonal LixTiS2 – A Study by Solid State 7Li NMR Methods |
eng |
dc.type |
Article |
eng |
dc.type |
ConferenceObject |
eng |
dc.type |
Text |
eng |
dc.relation.essn |
1862-4138 |
|
dc.relation.url |
https://diffusion-fundamentals.org/journal/6/2007/40.pdf |
|
dc.relation.urn |
urn:nbn:de:bsz:15-qucosa-193667 |
|
dc.bibliographicCitation.volume |
6 |
eng |
dc.description.version |
publishedVersion |
eng |
tib.accessRights |
frei zug�nglich |
eng |
dc.bibliographicCitation.articleNumber |
40 |
eng |
dc.bibliographicCitation.journalTitle |
Diffusion Fundamentals |
eng |