Title: rotating disc electrode
Long Title: IUPAC Gold Book - rotating disc electrode
DOI: 10.1351/goldbook.09124
Status: current

Definition
A disc electrode that is embedded in the centre of a cylinder which rotates in solution around the longitudinal cylinder axis.

Notes
1) The limiting current is given by the Levich equation.
2) The current is directly proportional to the electrode area and the electrode is uniformly accessible.
3) A second annular working electrode may be positioned concentric with the disc to make a rotating ring-disc electrode (RRDE). This arrangement is largely used in mechanistic studies.

Related Terms
- Levich equation: https://goldbook.iupac.org//terms/view/09140
- electrode: https://goldbook.iupac.org//terms/view/09060

Source
- PAC, 2020, 92, 641. 'Terminology of Electrochemical Methods of Analysis (IUPAC Recommendations 2019)' on page 667 (https://doi.org/10.1515/pac-2018-0109)

Other Outputs
- html: https://goldbook.iupac.org/terms/view/09124/html
- json: https://goldbook.iupac.org/terms/view/09124/json
- xml: https://goldbook.iupac.org/terms/view/09124/xml

Citation: Citation: 'rotating disc electrode' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. 10.1351/goldbook.09124
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Accessed: 2026-05-31T03:37:44+00:00