▎ 摘　　要

Three-dimensional (3D) MoS2/MoO2/carbon nanotube/graphene (MS/MO/CNT/G) foam has been prepared through hydrothermal reaction and freeze-drying process. The ratio of MoS2 to MoO2 can be controlled by changing pH of solvent during hydrothermal process. The electrochemical performance of MS/MO/CNT/G foam can be optimized through changing the ratio of MoS2 to MoO2. Graphene oxide (GO) and carbon nanotube (CNT) as carbon source are employed to build a three-dimensional foam. MoO2 enhances electronic conductivity and MoS2 provides high capacity. The flexible foam can be directly used as a self-supporting anode for lithium ion batteries. 3D MS/MO/CNT/G foam after the optimizing process exhibits high reversible capacity of 640 mAh g(-1) at 100 mA g(-1) after 200 cycles and 360 mAh g(-1) at 1 A g(-1) after 300 cycles when the pH was adjusted to 6.