Probing the Dynamics of Layered Double Hydroxides by Solid-State 27Al NMR Spectroscopy
| Autor: | Erwan André, Cédric Carteret, Pierrick Durand, Arnaud Di Bitetto, Gwendal Kervern |
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| Přispěvatelé: | Laboratoire de Chimie Physique et Microbiologie pour l'Environnement (LCPME), Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC), Cristallographie, Résonance Magnétique et Modélisations (CRM2), Centre National de la Recherche Scientifique (CNRS)-Université de Lorraine (UL), Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS) |
| Rok vydání: | 2017 |
| Předmět: |
Solid-state
Analytical chemistry 02 engineering and technology engineering.material 010402 general chemistry 01 natural sciences Spectral line Molecular dynamics Tensor Physical and Theoretical Chemistry ComputingMilieux_MISCELLANEOUS Chemistry Dynamics (mechanics) Layered double hydroxides [CHIM.MATE]Chemical Sciences/Material chemistry Nuclear magnetic resonance spectroscopy 021001 nanoscience & nanotechnology 0104 chemical sciences Surfaces Coatings and Films Electronic Optical and Magnetic Materials [CHIM.THEO]Chemical Sciences/Theoretical and/or physical chemistry NMR spectra database General Energy Chemical physics engineering 0210 nano-technology |
| Zdroj: | Journal of Physical Chemistry C Journal of Physical Chemistry C, American Chemical Society, 2017, 121 (13), pp.7276-7281. ⟨10.1021/acs.jpcc.6b13106⟩ |
| ISSN: | 1932-7455 1932-7447 |
| Popis: | In order to shed light on molecular dynamics and structure in layered materials, 27Al NMR spectra of layered double hydroxides (LDHs) were investigated by varying the layer charge density, the cations of the sheets, the interlayer anions, the hydration state, and the temperature. This study reveals that most of the broadening of 27Al satellite transitions in LDHs is due to dynamics within the interlayer space rather than the chemical environment of 27Al in the sheets, i.e., cation disorder. This finding provides a new solid-state NMR tool to probe dynamics in aluminum-bearing layered materials which does not require tensor calculations, which is based on direct acquisition spectra and which provides long-range information as the 27Al spectra are sensitive to dynamics that occur 3–5 A away from the observed nuclei. |
| Databáze: | OpenAIRE |
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