Scanning Electro-Chemical Microscope

Scanning Electrochemical Microscopy (SECM) is an electrochemical-cum-analytical technique that allows to map the topography of the electrode surface during electrochemical oxidation/reduction reaction that takes place at the interface of the electrolyte/electrode. An ultra-micro electrode at the tip of the probe allows the visualization of spatially-confined variations in the chemical reactivity depending on the surface conductivity of the electrode, using , amperomertric or potentiometric techniques as in the case of normal potentiostat/galvanostat.