As potential high-capacity anode materials for Lithium-ion batteries (LIBs), TMDCs have gained considerable attention, especially WS2 nanomaterials, which exhibit a higher theoretical specific capacity (433 mAh.g-1) than commercial graphite due to the 2D layer structure and the large platelet space. When used as an anode for lithium-ion batteries, WS2 exhibits an increasing lithium storage capacity. For example, Liu et al. prepared an ordered mesoporous WS2 as an anode for LIBs, which showed a high lithium storage capacity of 805 mAh.g-1 at a current of 0.1A.g-1.

WS₂ has attracted much attention due to its unique structural properties and suitable hydrogen binding energy (comparable to platinum group metals). WS₂ nanomaterials have been extensively investigated for energy conversion and storage systems.

Tungsten disulfide (WS2) is a semiconductor with a band gap, which gives WS2 a wide range of light absorption, and therefore, WS2 can be considered a promising photocatalyst for photocatalysis degradation of organic pollutants and hydrogen production from water decomposition. WS2 extends the light absorption region to the long-wave direction, and through morphological tuning, WS2 can achieve near-infrared photocatalytic activity.

To improve the electrical and catalytic properties of WS₂, the synthesis of WS₂ composites from other materials with good electrical conductivity is a promising approach. Composites are materials in which one material is the matrix and another material is used as the reinforcement. The various materials complement each other in terms of properties and create a synergistic effect, resulting in an overall performance superior to the original material.