Heterostructured two dimensional materials of MXene and graphene by hydrothermal method for efficient hydrogen production and HER activities

Recent development on two-dimensional (2D) heterostructured graphene and MXene materials were explored for electrochemical water splitting hydrogen evolution reaction (HER) activity. The hybrid MXene/reduced graphene oxides as two-dimensional (2D) hybrid structures were prepared by facile hydrothermal techniques at 150 °C with MXene and RG hybrid layered composites. As-prepared electrocatalytic active materials have been confirmed through structural and surface morphological studies such as XRD, RAMAN, FT-IR and SEM analysis. The prepared 2D materials were carried out for HER activities due to attractive conductivity and mass transfer process. HER performance were tested from linear sweep voltammetry (LSV) cures. The prepared MX, RG and MX@RG hybrid electrocatalyst exhibited overpotential values as observed as 220 mV, 193 mV, 121 mV respectively at 10 mAcm −2 cathodic on set. MX@RG hybrid heterostructure exhibited enhanced HER action with lowest overpotential (η = 121 mV) and good H 2 productions as an active future electrocatalyst for energy storage and conversion applications. • 2D heterostructured graphene and MXenes were explored for hydrogen evolution. • Prepared MX, RG, MX@RG electrocatalyst exhibited 220, 193, 121 mV overpotential. • MX@RG heterostructure enhanced HER activity with lowest η = 121 mV overpotential.