The application of nanosecond voltage pulses to electrodes provides three ways to conduct local electrochemistry on the micro- to nanometer scale. (1) The finite charging time of the double-layer capacity allows the machining of three-dimensional microstructures. (2) In an electrochemical scanning tunneling microscope, reactions are confined to the tunneling region, due to the depletion of the electrolyte in the tip--surface gap. (3) Ordering processes, following very fast electrochemical reactions, lead to unconventional island patterns on a surface.
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Kirchner et al. (2001) studied this question.
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