Nanosheets Decorated MoS < inf > 2 < /inf > Micro Balls: Effect of 1T/2H Composition

Abstract

Nanosheets Decorated Micro Balls (NDMB) of MoS2 have been synthesized using hydrothermal technique for their utilization in electrocatalytic hydrogen generation. A synergetic effect of 2H and 1T phase in NDMB was found to yield efficient hydrogen evolution reaction (HER) for splitting water molecules. NDMB electrode, fabricated by immobilization over transparent conductive substrate yielded lowest tafel slope of 40 mV/dec with smallest onset potential of 90 mV vs. RHE. Superior performance of NDMB for hydrogen evolution reaction can be attributed to synergy of 1T/2H composition and high electrochemical surface area of 170 cm2 as compared to the bulk MoS2.