MoS2–ReS2/rGO: A novel ternary hybrid nanostructure as a pseudocapacitive energy storage material

Abstract

Abstract In this study, three 2D materials include molybdenum disulfide (MoS2), rhenium disulfide (ReS2), and reduced graphene oxide (rGO) are synthesized and then hybridized in the form of a ternary hybrid (MoS2-ReS2/rGO) for pseudocapacitor electrode materials. The structure of materials is confirmed with X-ray diffraction analysis (XRD), Raman spectroscopy. The morphology of the synthesized materials is evaluated with a scanning electron microscope (SEM) and transmission electron microscopy (TEM) images. The electrochemical tests of cyclic voltammetry (CV), galvanostatic charge/discharge (GCD), and electrochemical impedance spectroscopy (EIS) are performed to investigate the electrochemical performance of electrodes. MoS2–ReS2/rGO shows a specific capacitance of 949\xa0F/g and also very good stability of 92% after 5000 consecutive CV cycles. According to the significant synergistic effect between hybrid components, the MoS2-ReS2/rGO electrode can be considered as a good electrode for use in the energy storage field.