Figure 4

Polarization curves for catalysts (a) and the corresponding Tafel plots (b). (c) Impedance spectroscopy at an overpotential of 155 mV. (d) Durability test for the MoS2 NS/MWCNT hybrid catalyst.
Polarization curves for catalysts (a) and the corresponding Tafel plots (b). (c) Impedance spectroscopy at an overpotential of 155 mV. (d) Durability test for the MoS2 NS/MWCNT hybrid catalyst.