| dc.description.abstract | In the first part, two-dimensional/two-dimensional heterostructures can leverage the strengths of each constituent 2D material and even demonstrate enhanced performance through synergistic effects. Two-dimensional transition metal carbide Ti3C2Tx (MXene) boasts excellent metallic conductivity, but, is prone to restacking, whereas two-dimensional MoS2 offers loose space but lacks in conductivity. Therefore, combining the Ti3C2Tx and MoS2 can complement each other′s weaknesses. Additionally, merging of 2D MoS2 with other transition metal sulfides represents a promising strategy for enhancing its electrochemical performances. Herein, a heterostructure composed of MnS nanoparticles embedded in MoS2 nanosheets grown on MXene (referred to as MXene@MnS-MoS2, abbreviated as M-MMS) was designed and synthesized as an anode material for lithium-ion batteries using a one-step hydrothermal method. The heterostructure-induced phase transition and built-in electric field enhance the intercalation kinetics of Li-ions, facilitate charge transfer, and accommodate volume expansion. Among the M-MMSs, the 0.26M-MMS exhibited the best performance, with a capacity of 818 mAh g-1 after 200 cycles at a current density of 100 mA g-1. The results indicate that M-MMS is a promising high-performance anode material for lithium-ion batteries demonstrating remarkable cycling performance, outstanding rate performance and good stability. The second part attempts to combine MXene with ZnMn2O4, aiming to enhance its performance as a lithium-ion battery anode. | en_US |