PalmSens Knowledge Base
Faraday’s law is next to the Nernst Equation the most important equation for electrochemistry. It describes the connection between the charge Q passing through a cell and the amount of substance n converted at the electrodes:
F is the Faraday constant and z the number of electrons needed per conversion.
In this section the reasons for the three electrode setup of most potentiostats is explained, what the task of each electrode is and what to take into consideration when choosing your counter electrode.