https://doi.org/10.1351/goldbook.09081
Electrochemical cell with a working electrode, reference electrode, and auxiliary electrode.
Notes:
- Electric current flows between the working and auxiliary electrodes. Electrode potential may be measured between the working and reference electrodes.
- A potentiostat can be used to maintain a potential difference between the working and reference electrodes.
Schematic of a three-electrode cell. 1 - working electrode, 2 - reference electrode, 3 - auxiliary electrode. The potential between 1 and 2 is set while passing and measuring current between 1 and 3.
Source:
PAC, 2020, 92, 641. 'Terminology of Electrochemical Methods of Analysis (IUPAC Recommendations 2019)' on page 654 (https://doi.org/10.1515/pac-2018-0109)
PAC, 2020, 92, 641. 'Terminology of Electrochemical Methods of Analysis (IUPAC Recommendations 2019)' on page 654 (https://doi.org/10.1515/pac-2018-0109)