The working electrode is the electrode in an electrochemical system on which the reaction of interest is occurring. 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. Common working electrodes can consist of materials ranging from inert metals such as gold, silver or platinum, to inert carbon such as glassy carbon or pyrolytic carbon, and mercury drop and film electrodes. Chemically modified electrodes are employed for the analysis of both organic and inorganic samples.
Special types of working electrodes
- Ultramicroelectrode (UME)
- Rotating disk electrode (RDE)
- Rotating ring-disk electrode (RRDE)
- Hanging mercury drop electrode (HMDE)
- Dropping mercury electrode (DME)
- Reference electrode
- Auxiliary electrode
- Electrochemical cell
- Electrode potential
- Kissinger, Peter; William R. Heineman (1996-01-23). Laboratory Techniques in Electroanalytical Chemistry, Second Edition, Revised and Expanded (2 ed.). CRC. ISBN 0-8247-9445-1.
- Bard, Allen J.; Larry R. Faulkner (2000-12-18). Electrochemical Methods: Fundamentals and Applications (2 ed.). Wiley. ISBN 0-471-04372-9.
- Zoski,, Cynthia G. (2007). Handbook of Electrochemistry. Amsterdam: Elsevier. ISBN 0-444-51958-0.
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