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- Title
Void-Assisted Ion-Paired Proton Transfer at Water-Ionic Liquid Interfaces.
- Authors
de Eulate, Eva Alvarez; Silvester, Debbie S.; Arrigan, Damien W. M.
- Abstract
At the water-trihexyl(tetradecyl)phosphonium tris(-pentafluoroethyl)trifluorophosphate ([P14,6,6,6][FAP]) ionic liquid interface, the unusual electrochemical transfer behavior of protons (H+) and deuterium ions (D+) was identified. Alkali metal cations (such as Li+, Na+, K+) did not undergo this transfer. H+/D+ transfers were assisted by the hydrophobic counter anion of the ionic liquid, [FAP]-, resulting in the formation of a mixed capacitive layer from the filling of the latent voids within the anisotropic ionic liquid structure. This phenomenon could impact areas such as proton-coupled electron transfers, fuel cells, and hydrogen storage where ionic liquids are used as aprotic solvents.
- Subjects
PROTON transfer reactions; ELECTROCHEMICAL analysis; DEUTERIUM ions; IONIC liquids; HYDROGEN storage; APROTIC solvents
- Publication
Angewandte Chemie, 2015, Vol 127, Issue 49, p15116
- ISSN
0044-8249
- Publication type
Article
- DOI
10.1002/ange.201507556