Alkali intercalation compounds of vanadium and chromium sulfides: an NMR study
NMR techniques have been used to study a series of materials, LiVS/sub 2/, NaVS/sub 2/, LiCrS/sub 2/, and NaCrS/sub 2/, which, while isostructural with the titanium intercalation compounds, are much less well understood because the formation of CrS/sub 2/ and VS/sub 2/ have only recently been reported. The resonance shifts and quadrupolar coupling strengths of the alkali metal atoms in LiVS/sub 2/ and NaVS/sub 2/ are very similar to those in the corresponding TiS/sub 2/ intercalation compounds; the vanadium NMR properties are independent of the choice of alkali metal atoms. A transferred hyperfine interaction between the Na nuclei and the localized Cr electronic moment is observed in NaCrS/sub 2/. The absence of an analogous interaction in LiCrS/sub 2/ is explained on the basis of the electronic character of the Li atom.
- Research Organization:
- Exxon Research and Engineering Co., Linden, NJ
- OSTI ID:
- 6549139
- Journal Information:
- Mater. Res. Bull.; (United States), Vol. 12:8
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
25 ENERGY STORAGE
METAL-NONMETAL BATTERIES
CATHODES
LITHIUM SULFIDES
CRYSTAL STRUCTURE
VANADIUM SULFIDES
CHROMIUM SULFIDES
SODIUM SULFIDES
CLATHRATES
NMR SPECTRA
ALKALI METAL COMPOUNDS
CHALCOGENIDES
CHROMIUM COMPOUNDS
ELECTRIC BATTERIES
ELECTROCHEMICAL CELLS
ELECTRODES
ENERGY STORAGE SYSTEMS
LITHIUM COMPOUNDS
SODIUM COMPOUNDS
SPECTRA
SULFIDES
SULFUR COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
VANADIUM COMPOUNDS
360602* - Other Materials- Structure & Phase Studies
250903 - Energy Storage- Batteries- Materials
Components
& Auxiliaries