Details
| Original language | English |
|---|---|
| Pages (from-to) | 1455-1465 |
| Number of pages | 11 |
| Journal | Zeitschrift fur Physikalische Chemie |
| Volume | 231 |
| Issue number | 7-8 |
| Publication status | Published - 26 Jul 2017 |
Abstract
We have studied the Li diffusion in the complex hydride Li3(NH2)2I which appears to exhibit fast Li ion conduction. To get a detailed insight into the Li motion, we have applied 7Li nuclear magnetic resonance spectroscopy methods, such as spin-lattice relaxation in the laboratory and rotating frames of reference, as well as spin-alignment echo. This combined approach allows us to probe Li jump rates over the wide dynamic range (~102-109 s-1). The spin-lattice relaxation data in the range 210-410 K can be interpreted in terms of a thermally-activated Li jump process with a certain distribution of activation energies. However, the low-temperature spin-alignment echo decays at T≤200 K suggest the presence of another Li jump process with the very low effective activation energy.
Keywords
- complex hydride, ion diffusion, nuclear magnetic resonance, spin-alignment echo, spin-lattice relaxation
ASJC Scopus subject areas
- Chemistry(all)
- Physical and Theoretical Chemistry
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In: Zeitschrift fur Physikalische Chemie, Vol. 231, No. 7-8, 26.07.2017, p. 1455-1465.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - NMR Studies of Lithium Diffusion in Li3(NH2)2I over Wide Range of Li+ Jump Rates
AU - Skripov, Alexander V.
AU - Volgmann, Kai
AU - Chandran, C. Vinod
AU - Skoryunov, Roman V.
AU - Babanova, Olga A.
AU - Soloninin, Alexei V.
AU - Orimo, Shin Ichi
AU - Heitjans, Paul
N1 - Publisher Copyright: © 2017 Walter de Gruyter GmbH, Berlin/Boston 2017. Copyright: Copyright 2021 Elsevier B.V., All rights reserved.
PY - 2017/7/26
Y1 - 2017/7/26
N2 - We have studied the Li diffusion in the complex hydride Li3(NH2)2I which appears to exhibit fast Li ion conduction. To get a detailed insight into the Li motion, we have applied 7Li nuclear magnetic resonance spectroscopy methods, such as spin-lattice relaxation in the laboratory and rotating frames of reference, as well as spin-alignment echo. This combined approach allows us to probe Li jump rates over the wide dynamic range (~102-109 s-1). The spin-lattice relaxation data in the range 210-410 K can be interpreted in terms of a thermally-activated Li jump process with a certain distribution of activation energies. However, the low-temperature spin-alignment echo decays at T≤200 K suggest the presence of another Li jump process with the very low effective activation energy.
AB - We have studied the Li diffusion in the complex hydride Li3(NH2)2I which appears to exhibit fast Li ion conduction. To get a detailed insight into the Li motion, we have applied 7Li nuclear magnetic resonance spectroscopy methods, such as spin-lattice relaxation in the laboratory and rotating frames of reference, as well as spin-alignment echo. This combined approach allows us to probe Li jump rates over the wide dynamic range (~102-109 s-1). The spin-lattice relaxation data in the range 210-410 K can be interpreted in terms of a thermally-activated Li jump process with a certain distribution of activation energies. However, the low-temperature spin-alignment echo decays at T≤200 K suggest the presence of another Li jump process with the very low effective activation energy.
KW - complex hydride
KW - ion diffusion
KW - nuclear magnetic resonance
KW - spin-alignment echo
KW - spin-lattice relaxation
UR - http://www.scopus.com/inward/record.url?scp=85024836513&partnerID=8YFLogxK
U2 - 10.1515/zpch-2016-0925
DO - 10.1515/zpch-2016-0925
M3 - Article
AN - SCOPUS:85024836513
VL - 231
SP - 1455
EP - 1465
JO - Zeitschrift fur Physikalische Chemie
JF - Zeitschrift fur Physikalische Chemie
SN - 0942-9352
IS - 7-8
ER -