Electrode rotators allow users to study a redox reaction with controlled hydrodynamic steady-state conditions, giving access to valuable kinetic information.
Rotating Disk Electrodes (RDE) and Rotating Ring Disk Electrodes (RRDE) are used to create stationary mass transport conditions for the species reacting at an electrode. Such conditions allow in-depth kinetic studies of the electrochemical reaction of interest: thanks to the Levich and Koutecký-Levich DC method, one can have access to the diffusion coefficient of the reactive species and the standard reaction constant of the reaction. One can also obtain this information more directly by performing impedance measurements on an RDE. For RRDE, usually, species are produced at the disk and collected at the ring. Applying the right potential on the ring enables you to selectively detect a species produced at the disk, this can have applications in fields as various as corrosion, catalysts, and bio-electrochemistry.
BluRev is BioLogic’s electrode rotator product range . The electrode rotator is composed of a rotation control box called RC-10k and the rotating shaft, connected to the motor and terminated by an electrode. The maximum speed is 10,000 rpm with an accuracy of ±1 rpm. The speed can be controlled either manually or remotely using an external voltage signal. A wide range of materials is offered for disk electrodes that will be mounted on the shaft. The shaft and the electrodes body are made of PEEK to ensure good chemical compatibility as well as mechanical robustness.