1H and 7Li NMR in defect cobaltite Li0.6CoO2 |
| |
| Authors: | D. G. Kellerman S. P. Gabuda N. A. Zhuravlev A. S. Semenova T. A. Denisova R. N. Pletnev |
| |
| Affiliation: | (1) Institute of Solid State Chemistry, Ural Division, Russian Academy of Sciences, Ekaterinburg;(2) A. V. Nikolaev Institute of Inorganic Chemistry, Siberian Division, Russian Academy of Sciences, Novosibirsk |
| |
| Abstract: | Within a temperature range of 120–330 K, 7Li NMR spectra in Li0.6CoO2 are obtained. It is shown that as the temperature increases, both smooth and stepwise variation of 7Li NMR contact shifts occurs. The observed effects are explained by the occupation of the excited levels of cobalt ions. The stepwise change of the resonance line width depending on the temperature is revealed. It is driven by the features of the diffusive motion of lithium ions. The calculation of the 1H NMR line shape provides the determination of the ratio of one-, two-, and three-spin proton clusters in Li0.6CoO2·xH2O. |
| |
| Keywords: | lithium cobaltite NMR electroconductivity magnetic susceptibility diffusion polaron |
| 本文献已被 SpringerLink 等数据库收录！ |
|
