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Chapitre D'ouvrage Année : 2022

Dealing with Quadrupolar Nuclei in Paramagnetic Systems

Résumé

Quadrupolar nuclei with spin quantum number I > 1/2, e.g. 7Li, 23Na and 17O, are frequently encountered in lithium-ion batteries and sodium-ion batteries. This chapter describes: (i) the basic theory, (ii) the powder sample line-shapes with first- and second-order quadrupolar broadening observed under static or MAS conditions, (iii) some important experimental techniques such as MQMAS, and finally (iv) the developments of correlation NMR experiments. In recent years, solid-state nuclear magnetic resonance spectroscopy (SS-NMR) has become a vital analytical method that provides atomic-level structural information of materials used for Li-ion and Na-ion batteries.1 In these materials, 7Li, 23Na and 17O isotopes are frequently encountered, which are typical quadrupolar nuclei with spin quantum number I > 1/2. In fact, quadrupolar nuclei account for ca. 75% of all NMR-active nuclei in the periodic table, and they are very important for SS-NMR structural analyses. This chapter describes: (i) the basic theory, (ii) the powder sample line-shapes with first- and second-order quadrupolar broadening observed under static or MAS conditions, (iii) some important experimental techniques such as MQMAS, and finally (iv) the developments of correlation NMR experiments.
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Dates et versions

hal-04311622 , version 1 (28-11-2023)

Identifiants

Citer

B. W. Hu, Jean-Paul Amoureux. Dealing with Quadrupolar Nuclei in Paramagnetic Systems. NMR and MRI of Electrochemical Energy Storage Materials and Devices, Royal Society of Chemistry, pp.106-129, 2022, 978-1-78801-848-7. ⟨10.1039/9781839160097-00106⟩. ⟨hal-04311622⟩
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