Enhanced Hydrogen Evolution Activity of MOS_2-rGO Composite Synthesized via Hydrothermal Technique

Abstract

Hydrogen evolution reaction (HER) has emerged as a promising technique for the production of clean and sustainable energy. In recent years, researchers have been exploring various materials for efficient HER activity. In this study, we report the synthesis of two different materials, namely MOS_2 and MoS_2-rGO, through a hydrothermal technique. X-ray diffraction (XRD), Fourier-transform infrared (FTIR) spectroscopy, and Raman spectroscopy were used to characterize the materials. XRD analysis revealed the formation of hexagonal MOS_2 with a high degree of crystallinity. FTIR analysis confirmed the presence of Mo-S bonds, while Raman spectroscopy provided evidence for the formation of MOS_2.To evaluate the HER activity of the materials, linear sweep voltammetry (LSV) was performed. The results showed that MOS_2 and MOS_2-rGO had good HER activity with low onset potentials and high current densities. The MOS_2-rGO material showed improved HER activity compared to MOS_2, indicating the potential of graphene oxide as a co-catalyst to enhance the performance of MOS_2.

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