Electrode potential Electrode potential Electrode potential, "E", in chemistry or electrochemistry, according to a IUPAC definition, is the electromotive force of a cell built of two electrodes: The SHE is defined to have a potential of 0 V, so the signed cell potential from the above setup is SHE is cathode and electrode is anode Electrode potential appears at the interface between an electrode and electrolyte due to the transfer of charged species across the interface, specific adsorption of ions at the interface, and specific adsorption/orientation of polar molecules, including those of the solvent. Electrode potential is the electric potential on an
Auxiliary electrode species which exhibits reversible redox behavior. Auxiliary electrodes are often fabricated from electrochemically inert materials such as gold, platinum, or carbon. Auxiliary electrode 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. The auxiliary electrode is distinct from the reference electrode, which establishes the electrical potential against which other potentials may be measured, and the working electrode, at which the cell reaction takes place. In a two-electrode system, either a known current or potential is