Void-Assisted Ion-Paired Proton Transfer at Water–Ionic Liquid Interfaces

نویسندگان

  • Eva Alvarez de Eulate
  • Debbie S Silvester
  • Damien W M Arrigan
چکیده

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.

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عنوان ژورنال:

دوره 54  شماره 

صفحات  -

تاریخ انتشار 2015