A voltammetric study of 6-mercaptopurine monolayers on polycrystalline gold electrodes

Electrochemical surface nanopatterning by selective reductive desorption from mixed metal surfaces

“…This behaviour is consistent with the selective desorption from a poly-Au surface [15,[26][27][28][29], where low index crystalline planes exhibit very narrow thiol reductive desorption potential windows.…”

An optimised electrode pre-treatment for SAM formation on polycrystalline gold

“…Two peaks are also observed for DPV of C 12 SH at À1.11 V and À1.31 V (a dominant peak at À1.31 V and a minor peak integrating to 2-3% of this and not visible on the same current scale). Observations such as this are expected on polycrystalline surfaces [17,[35][36][37][38], and have been assigned to reductive desorp- …”

“…Surface areas were calculated by integration of peak labelled A (reduction of an Au/a gold oxide layer formed in an anodic scan) from +750 to +1000 mV (see Table 1). tion from the Au(1 1 1), Au(1 0 0) and Au(1 1 0) index faces [38][39][40] present. The advantages of electrochemical oxide stripping are evident in the increased thiol based surface coverages attainable subsequently.…”

Electrochemical study of a cetylpyridinium bromide/glutathione mixed membrane electrochemically deposited at polycrystalline Ag electrodes

“…At sufficiently negative potentials, however, the chemisorbed thiols will desorb from the Ag or Au surface due to their reduction to thiolates. A desorption process generally includes a 1e À reaction [24][25][26][27][28][29]:…”