2H-MoS2 nanoflowers with exposed edges for hydrogen producing electrochemical cell

Abstract

In this study, we report hexagonal MoS2 nanoflowers with well exposed edges as efficient catalyst for hydrogen production. The 2H-MoS2 nanoflowers based electrodes show a low overpotential of 0.193 V and a Tafel slope of 69 mV dec1 at a voltage sweep rate of 5 mV s−1 for hydrogen evolution reaction with excellent stability for more than 2500 cycle. We also demonstrate the production and collection of hydrogen using in-house developed electrochemical cell with 2H-MoS2 nanoflowers as cathode. © 2020 Elsevier Ltd