1. Effect of confinement on ionic liquids dynamics in monolithic silica ionogels: 1H NMR study
- Author
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Séverine Bellayer, J. Le Bideau, André Vioux, Philippe Gaveau, Marie-Alexandra Neouze, Institut Charles Gerhardt Montpellier - Institut de Chimie Moléculaire et des Matériaux de Montpellier (ICGM ICMMM), Ecole Nationale Supérieure de Chimie de Montpellier (ENSCM)-Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)-Université Montpellier 1 (UM1)-Université Montpellier 2 - Sciences et Techniques (UM2)-Institut de Chimie du CNRS (INC), and Programme CNRS 'Matériaux 2004' projet n° 33
- Subjects
Solid-state ,Analytical chemistry ,General Physics and Astronomy ,02 engineering and technology ,[CHIM.MATE]Chemical Sciences/Material chemistry ,010402 general chemistry ,021001 nanoscience & nanotechnology ,01 natural sciences ,0104 chemical sciences ,law.invention ,Condensed Matter::Soft Condensed Matter ,chemistry.chemical_compound ,proton NMR ,ionogel ,chemistry ,law ,Chemical physics ,confinement ,proton relaxation time ,Ionic liquid ,Proton NMR ,Physical and Theoretical Chemistry ,Crystallization ,0210 nano-technology ,ionic liquid - Abstract
International audience; 1H MAS NMR and temperature-dependent relaxation time measurements were carried out for the first time on ionic liquids confined in monolithic silica matrices and enabled us to show that the ionic liquids' dynamics experienced only a very small slowing-down. The confinement preserved the ionic liquids properties and, moreover, allowed liquid-like behaviour at temperatures below the crystallisation temperature of genuine ionic liquids. This study highlights the interest of the ionogel approach to all-solid state devices with genuine IL properties.
- Published
- 2007
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