structural engineering of 2d nanomaterials: electrochemical energy storage applications

Ultrathin two-dimensional (2d) nanomaterials such as transition metal dichalcogenides are fundamentally and technologically intriguing. the tunable electronic structure of 2d nanomaterials, especially metal dichalcogenides, makes them attractive for a variety of applications. they have been investigated as chemically active electrocatalysts for hydrogen evolution and hydro-sulfurization, as well as electrically active materials in opto-electronics. their morphologies and properties are also useful for energy storage applications such as electrodes for ion batteries and supercapacitors. this representation explains the effect of interlayer spacing, tailoring the cracks and defects, and phase changes of the 2d nanomaterials on the excellent enhancement of their energy storage performance, especially in the k- and na-ion batteries and supercapacitors. moreover, different strategies will be introduced to do desirable engineering of 2d metal dichalcogenide nanomaterials to make energy storage devices with higher power and energy densities.