Working Electrode Counter Electrode And Reference Electrode. If your currents are higher you want to perform a long term experiment for example overnight or need a very stable potential a three electrode system with a proper reference electrode is necessary. The use of a specific counter electrode can also be avoided by using two working electrodes and this may be useful in the measurement of polarization resistance or electrochemical impedance seen already.
In corrosion experiments this is probably the material that is corroding. The auxiliary electrode often also called the counter electrode is an electrode used in a three electrode electrochemical cell for voltammetric analysis or other reactions in which an electric current is expected to flow. So the working electrode is the cathode where the metal is deposited the counter electrode is required to complete the electric circuit.
Calomel reference electrode silver silver chloride reference electrode.
The reference electrode is a potential sensing probe. The reference and counter electrode can also form a short circuit and you can work with a two electrode system. The use of a specific counter electrode can also be avoided by using two working electrodes and this may be useful in the measurement of polarization resistance or electrochemical impedance seen already. This combination is sometimes referred to as a three electrode setup.
