Facile synthesis SnO2 nanoparticle-modified Ti3C2 MXene nanocomposites for enhanced lithium storage application

SnO 2 nanoparticle-modified Ti 3 C 2 MXene (SnO 2 –Ti 3 C 2 ) nanocomposites have been synthesized via hydrothermal method and subsequently used as anode material for lithium-ion batteries (LIBs) with enhanced electrochemical performance. The results of the microstructure analysis indicate that the introduction of SnO 2 nanoparticles enlarged the d-spacing of Ti 3 C 2 layers and increased the Li + storage. Meanwhile, SnO 2 nanoparticles improve the electrochemical performance based on the alloying mechanism. Electrochemical results reveal that SnO 2 –Ti 3 C 2 nanocomposites can greatly improve the reversible capacity compared with pure Ti 3 C 2 T x particles. Remarkably, SnO 2 –Ti 3 C 2 nanocomposites show outstanding initial capacity of 1030.1 mAh g −1 at 100 mA g −1 , and the capacity can remain about 360 mAh g −1 after 200 cycles. The SnO 2 –Ti 3 C 2 nanocomposites demonstrate a stable cycle performance and high reversible capacity for lithium storage.