The design of multifunctional advanced nanomaterials is a fascinating and demanding approach to harness clean and sustainable energy. Two-dimensional metallic transition-metal chalcogenide-based alloys are regarded as a viable option for energy storage and hydrogen evolution reaction (HER) applications due to their improved electrical conductivity, presence of additional active sites, and capacity to make hybrids with various materials. Herein, a facile hydrothermal approach is employed to construct 1D/2D MoSSe@f-CNT heterostructures, and their energy storage/conversion performance was investigated. The fabricated asymmetric device based on MoSSe@f-CNT//VSe2/rGO/CNT showed a high specific capacitance of 111 F/g with a high energy density (26 Wh/kg) and power density (11,250 W/kg). Also, the catalyst shows a decent electrocatalytic HER performance with a low overpotential value of 249 mV at a current density (j) of 10 mA cm–2 in a 0.5 M H2SO4 electrolyte.

MoS2 has gained more interest among two-dimensional (2D) materials due to its large surface area and low electronegativity, making it an ideal electrode material for supercapacitors. The Low intrinsic conductivity and agglomeration induced by the van der Waals interaction of MoS2 continue to impair its supercapacitive performance. To address this sluggish electrochemical performance, we synthesized an n-p-type MoS2/BP heterostructure adopting a facile hydrothermal approach and examined its electrochemical performance for the first time. An all-solid-state asymmetric supercapacitor with MoS2/BP as the negative electrode and VS2/BP as the positive electrode was constructed to evaluate the material’s electrochemical performances. The proposed all-phosphorene-based device demonstrated exceptional capacitance retention and cyclic stability, with a capacitance of around 114 F g–1 at a current density of 4 A g–1 and an energy/power density of 34.71 Wh kg–1/4031 W kg–1.