Enhanced ionic liquid mobility induced by confinement in 1D CNT membranes

Q. Berrod (1) , F. Ferdeghini (1) , P. Judeinstein (1) , N. Genevaz (1) , R. Ramos (2) , A. Fournier (2) , J. Dijon (2) , J. Ollivier (3) , S. Rols (3) , D. Yu (4) , R. Mole (4) , J. Zanotti (5, 6)

1 LLB - UMR 12 - Laboratoire Léon Brillouin
2 LITEN - Laboratoire d'Innovation pour les Technologies des Energies Nouvelles et les nanomatériaux
3 ILL - Institut Laue-Langevin
4 ANSTO - Australian Nuclear Science and Technology Organisation [Australie]
5 GSBD - Groupe Biologie et systèmes désordonnés
6 MMB - LLB - Matière molle et biophysique

Water confined within carbon nanotubes (CNT) exhibits tremendous enhanced transport properties. Here, we extend this result to ionic liquids (IL) confined in vertically aligned CNT membranes. Under confinement, the IL self-diffusion coefficient is increased by a factor 3 compared to its bulk reference. This could lead to high power battery separators.

Domaines: Matière Molle [cond-mat.soft]

Q. Berrod, F. Ferdeghini, P. Judeinstein, N. Genevaz, R. Ramos, et al.. Enhanced ionic liquid mobility induced by confinement in 1D CNT membranes. Nanoscale, 2016, 8 (15), pp.7845-7848. ⟨10.1039/C6NR01445C⟩. ⟨hal-02051297⟩