Formation of tungsten-doped molybdenum selenide electrocatalyst for methanol oxidation reaction

Abstract Reaction medium (1,3-butane-diol) plays a vital role for the final morphology of W-Mo 15 Se 19 electrocatalyst during synthetic strategy based on single-step solvothermal method. Smoothness of the electrocatalyst may govern its electrochemical application. High ECSA (0.055 mF/cm 2 ), low R ct , low Tafel slope (99.0 mV/dec), and excellent long-term stability for 3600 s may attribute to its large surface area due to negligible agglomeration. W-Mo 15 Se 19 delivers a current density of 1.65 mA/mg at an overpotential of 0.65 V (Ag/AgCl) in 0.75 M methanol and 1 M KOH, at a scan rate of 50 mV/s.