Electrochemical detection of dopamine using WSe<inf>2</inf> microsheets modified platinum electrode

Transition metal dichalcogenides (TMDs) have been proven to possess many properties that are beneficial for the application of electrochemical detection. In this study, the tungsten diselenide (WSe2) was synthesized utilizing the hydrothermal method and used to modify the platinum electrode. The electrochemical behaviour of the WSe2-modified electrode was examined utilizing cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) methods. The electrode displays a wide linear range of 5-100 μM with a linear correlation coefficient of 0.986. The detection limit of this method was found to be 5 μM. The method has good stability and linear dependency on the scan rate.