Microring electrodes: A computational study of transport−limited processes

Abstract

Investigations at microring electrodes are limited by the lack of equations that describe short and Ion time behavior at rings of all thicknesses. In this paper, a robust finite difference numerical method is presented for the simulation of electrochemical processes at microring electrodes of intermediate thickness. The method relies on a careful meshing strategy to minimize electrode flux errors. The accuracy of the method is first tested by comparison with a well-established reversib