Electrochemistry in laminar and turbulent flow conditions using rotating electrodes
Electrochemical experiments are generally performed in cells with quiescent electrolytes. This means that the motion of molecules and ions is imparted by the natural convection process. However, forced convection is sometimes necessary in electrochemistry. In these situations, the use of rotating working electrodes is beneficial to generate forced convection. With forced convection, hydrodynamic conditions are created where the working electrode and electrolyte are in relative motion.
Which applications benefit from using rotating electrodes?
To answer this question, we will first take a deeper look at the difference between quiescent solutions and hydrodynamic conditions. Then, after spotting the differences between laminar and turbulent flow, three main rotating electrodes and their suggested applications are highlighted.