Working Electrode And Counter Electrode. Typically the current is measured between the working and counter electrodes at a constant potential applied between the working and reference electrodes and this is referred to as amperometry. The working electrode is your sample you are studying the reference electrode sets the potential of the solution and the counter electrode is a current source.
Typically the current is measured between the working and counter electrodes at a constant potential applied between the working and reference electrodes and this is referred to as amperometry. The working electrode is often used in conjunction with an auxiliary electrode and a reference electrode in a three electrode system depending on whether the reaction on the electrode is a reduction or an oxidation the working electrode is called cathodic or anodic respectively. So the working electrode is the cathode where the metal is deposited the counter electrode is required to complete the electric circuit.
The working electrode is the electrode in an electrochemical system on which the reaction of interest is occurring.
The counter electrode should be a good electrical conductor. Typically the current is measured between the working and counter electrodes at a constant potential applied between the working and reference electrodes and this is referred to as amperometry. The potential variation of a pt counter electrode ce in a three electrode configuration is monitored as the potential of a pt working electrode e we follows a triangle shaped program in 0 5 m aqueous h 2 so 4 the spontaneously adopted ce potential e ce is reported for different values of the ratio of geometric surface areas of we and ce a geom we a geom ce. Therefore a relatively slow half reaction at the counter electrode is occurring much faster still than the one at the working electrode because more species are transformed per time unit owing to the much bigger surface that is available for the half reaction at the counter electrode.
