Figure 1.
(A) Scheme of redox reactions at the tip and the conductive outer wall as defined in the cylindrical coordinate for simulation of SECM approach curves. (B) Approach curves simulated for a disk-shaped tip with a conductive and insulating outer wall (θ= 5° and RG = 1.4). The tip current was normalized against different iT,∞ values for a conductive and insulating outer wall (see eq 4).