The optimum growth time was acquired to be 11 hours. Thereby such obtained electrode exhibited the maximum HER activity with onset over the potential of 220 mV versus reversible hydrogen electrode (RHE), and the Tafel slope of 66 mV per decade (mV/dec). Conclusion: Our results suggest a good technique for the research of high-efficient HER electrocatalyst based on atomicthickness layered materials. |