Advances in MoS2-Based ternary nanocomposites for high-performance electrochemical energy storage

The field of rechargeable energy storage devices is actively exploring nanostructured materials with intricate morphologies due to several advantages. The integration of nanostructured materials into various electrodes, and rechargeable systems holds the potential to revolutionize energy storage, contributing to a cleaner and more sustainable energy landscape. Among these materials, 2D transition metal dichalcogenides (TMDs) have garnered attention, particularly molybdenum disulfide (MoS₂), due to its outstanding properties such as optical characteristics, and unique layer structure. The semiconducting features, tunable bandgap, and high surface area of 2D MoS₂ contribute to its suitability for energy storage applications. However, challenges related to conductivity and stability exists. To address challenges related to structure and interface, researchers investigate heterostructure ternary nanocomposites, combining MoS₂ with materials such as metal oxides, carbonaceous compounds and conductive polymers. These composites enhance intercalation sites and charge storage capacity, improving ionic diffusion. This review focused on the latest advancements in leveraging electroactive materials like metal oxides, conductive polymers, and carbonaceous compounds to improve MoS₂ performance in energy storage applications. We explored the synergistic effects achieved through the incorporation of these materials and their impact on the capacitive behavior, energy density, and cycle life. It thoroughly investigated the application of MoS₂-based ternary nanocomposites in energy storage, with a specific focus on supercapacitors and Li-ion batteries.