Studies on 2D-molybdenum diselenide (MoSe₂) based electrode materials for supercapacitor and batteries: A critical analysis

Two-dimensional (2D) nanomaterials are getting significant attention in the area of energy storage and conversion due to their unique physical, chemical, and electrical properties. Molybdenum dichalcogenides, particularly molybdenum diselenide (MoSe₂) have emerged as one of the most promising candidates for energy storage devices. Many MoSe₂-based compounds have been synthesized and studied for electrochemical energy storage devices such as supercapacitors, lithium-ion, and sodium-ion batteries. In this review, we summarize the advances made in recent years on the MoSe₂-based anode materials and highlight their outcomes in electrochemical storage applications. The electrochemical performance of different composites of MoSe₂ is briefly reviewed. The relationship between different morphologies of MoSe₂ and their electrochemical performance is also discussed. Also, the role of different supporting species in the MoSe₂-based composites has been discussed in detail. Additionally, the positive and negative aspects of the different morphologies of MoSe₂ and its composites are also summarized. Finally, the challenges and outlooks on the development of MoSe₂ based anode material are proposed.