Heterogeneous electron transfer at Au/SAM junctions in a room-temperature ionic liquid under pressure

Proven electrochemical approaches were applied to study heterogeneous electron transfer ( ET) between selected redox couples and gold electrodes modified with alkanethiol self-assembled monolayers (SAMs), using the room-temperature ionic liquid (RTIL) [ bmim][NTf2] as reaction medium; ferrocene as freely diffusing redox probe in the RTIL was tested for ET through both thin ( butanethiol) and thick ( dodecanethiol) assemblages at pressures up to 150 MPa; well behaved kinetic patterns and reproducibility of data were demonstrated for ET within the unique Au/SAM/RTIL arrays.