Wide Polarized Potential Windows at the Interface between Water and an Ionic Liquid, Tetraheptylammonium Tetrakis[3,5-bis(trifluoromethyl)phenyl]borate
Wide polarized potential windows against interfacial ion transfer are available at the interface between a hydrophobic ionic liquid (IL), tetraheptylammonium tetrakis[3,5-bis(trifluoromethyl)phenyl]borate ([THpA+][TFPB - ]) and an aqueous electrolyte solution (W) of MgSO 4 . The width of the potential window, 1.1V at 60°C, enables electrochemical studies of charge transfer at the IL/W interface for a variety of ions and redox couples.