Electrochemical surface analysis with the scanning droplet cell.
A new electrochemical device, the scanning droplet cell, is presented. Small electrolyte droplets are positioned on the sample surface and enable a spatially resolved surface analysis or modification. The droplet is simply held by its surface tension and, therefore, no surface pretreatment is necessary. According to the conventional 3-electrode arrangement all common potentiostatic and galvanostatic techniques, e.g. impedance spectroscopy, cyclic voltammetry, or current transients of potentiostatic steps, are possible.
Institut für Physikalische Chemie und Elektrochemie, Heinrich-Heine-Universität Düsseldorf, Germany. manuel.lohrengel@uni-duesseldorf.de
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Lohrengel
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Moehring
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Pilaski