Working electrode

A working electrode is an electrode which run on the electrochemical processes in a controlled manner. For this, the potential of the working electrode is measured using a reference electrode and, optionally, ( such as a potentiostat ), controlled by a suitable arrangement.

In many processes inert electrochemical tests and working electrodes are used. That is, the work electrode serves as the surface of the electrochemical reaction in the electrolyte of dissolved substances can proceed without the working electrode is involved in the actual reaction. Depending on the potential of the working electrode solutes can be oxidized or reduced, the working electrode is only used as an electron acceptor or electron donor. Common materials for inert working electrodes are mercury, gold, platinum and glassy carbon (English glassy carbon).

• Electrode ( electrochemistry )