Details
| Originalsprache | Englisch |
|---|---|
| Seiten (von - bis) | 3246-3251 |
| Seitenumfang | 6 |
| Fachzeitschrift | Physical Chemistry Chemical Physics |
| Jahrgang | 4 |
| Ausgabenummer | 14 |
| Publikationsstatus | Veröffentlicht - 2002 |
Abstract
Lithium diffusion in amorphous LiNbO3, synthesized by a sol-gel process, was investigated by temperature- and frequency-dependent 7Li NMR experiments. 7Li spin-lattice relaxation rates T1-1 and 7Li nuclear magnetic resonance spectra, in particular line shapes and motional narrowing of the central line, were measured. The results are discussed in comparison with those on nano- and microcrystalline LiNbO3 investigated by us earlier. The Li diffusivity in the amorphous material is much higher than in the microcrystalline one and can be described by practically the same diffusion parameters as in nanocrystalline LiNbO3. This suggests that the diffusion pathways in amorphous LiNbO3 and in the interfacial regions of nanocrystalline LiNbO3 have similar structures.
ASJC Scopus Sachgebiete
- Physik und Astronomie (insg.)
- Allgemeine Physik und Astronomie
- Chemie (insg.)
- Physikalische und Theoretische Chemie
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in: Physical Chemistry Chemical Physics, Jahrgang 4, Nr. 14, 2002, S. 3246-3251.
Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review
}
TY - JOUR
T1 - Diffusion in amorphous LiNbO3 studied by 7Li NMR - Comparison with the nano- and microcrystalline material
AU - Wilkening, Martin
AU - Bork, Detlef
AU - Indris, Sylvio
AU - Heitjans, Paul
PY - 2002
Y1 - 2002
N2 - Lithium diffusion in amorphous LiNbO3, synthesized by a sol-gel process, was investigated by temperature- and frequency-dependent 7Li NMR experiments. 7Li spin-lattice relaxation rates T1-1 and 7Li nuclear magnetic resonance spectra, in particular line shapes and motional narrowing of the central line, were measured. The results are discussed in comparison with those on nano- and microcrystalline LiNbO3 investigated by us earlier. The Li diffusivity in the amorphous material is much higher than in the microcrystalline one and can be described by practically the same diffusion parameters as in nanocrystalline LiNbO3. This suggests that the diffusion pathways in amorphous LiNbO3 and in the interfacial regions of nanocrystalline LiNbO3 have similar structures.
AB - Lithium diffusion in amorphous LiNbO3, synthesized by a sol-gel process, was investigated by temperature- and frequency-dependent 7Li NMR experiments. 7Li spin-lattice relaxation rates T1-1 and 7Li nuclear magnetic resonance spectra, in particular line shapes and motional narrowing of the central line, were measured. The results are discussed in comparison with those on nano- and microcrystalline LiNbO3 investigated by us earlier. The Li diffusivity in the amorphous material is much higher than in the microcrystalline one and can be described by practically the same diffusion parameters as in nanocrystalline LiNbO3. This suggests that the diffusion pathways in amorphous LiNbO3 and in the interfacial regions of nanocrystalline LiNbO3 have similar structures.
UR - http://www.scopus.com/inward/record.url?scp=0036305091&partnerID=8YFLogxK
U2 - 10.1039/b201193j
DO - 10.1039/b201193j
M3 - Article
AN - SCOPUS:0036305091
VL - 4
SP - 3246
EP - 3251
JO - Physical Chemistry Chemical Physics
JF - Physical Chemistry Chemical Physics
SN - 1463-9076
IS - 14
ER -