Advances in TiS2 for energy storage, electronic devices, and catalysis: A review

As the lightest family member of the transition metal disulfides (TMDs), TiS2 has attracted more and more attention due to its large specific surface area, adjustable band gap, good visible light absorption, and good charge transport properties. In this review, the recent state-of-the-art advances in the syntheses and applications of TiS2 in energy storage, electronic devices, and catalysis have been summarized. Firstly, according to the physical presentation of the TiS2 synthesis reaction, it can be divided into a solid phase synthesis, a liquid phase synthesis and a gas phase synthesis. Secondly, we summarize the applications of TiS2 in energy storage, electronic devices and catalytic: (1) The applications of TiS2 nanostructure in energy storage direction from the aspects of Li-ion battery (LIB), Li-S battery (LSB), Na-ion battery (NIB), K-ion battery (KIB), Mg-ion battery (MIB), solar cells and hydrogen storage; (2) The applications of TiS2 nanostructures in various electronic devices from thermoelectric devices, high power lasers and flexible devices; (3) Applications based on energy catalysis and environmental catalysis. Based on the various synthetic technologies and wide applications of TiS2, we firmly believe that the challenges of TiS2 will be solved and become a hot star material in the future. Finally, we discuss the future scope and the current challenges arising from this fascinating material.