MoO₂ material has attracted extensive attention as a competitive candidate because of high theoretical capacity and low cost. However, the large volume change and low conductivity and ion diffusivity of the MoO₂ during lithium storage process bring about fast capacity decay and sluggish reaction kinetics, seriously impeding the practical application of MoO₂ in lithium-ion batteries. Herein, we demonstrate a relatively green and facile strategy to prepare MoO₂/C composite to mitigate above issues. Combined multiple characterization results support that this composite is made up of MoO₂ nanoparticles with a 3D porous carbon embedment and hence exhibits upgraded structure stability and enhanced reaction kinetics as a lithium-ion battery anode. Consequently, thus MoO₂/C composite shows superior performance, revealing 1050 and 707 mAh g⁻¹ after 110 and 100 cycles at 200 and 1000 mA g⁻¹, respectively. Moreover, this work could offer a new insight into aiming of green preparation of advanced MoO₂/C-based anodes for lithium-ion batteries.

MoO ₂材料因其高理论容量和低成本作为竞争候选材料引起了广泛关注。然而，MoO ₂在储锂过程中体积变化大、电导率和离子扩散率低，导致容量衰减快和反应动力学缓慢，严重阻碍了MoO ₂在锂离子电池中的实际应用。在此，我们展示了一种相对绿色且简便的策略来制备 MoO ₂ /C 复合材料以缓解上述问题。综合多个表征结果支持该复合材料由 MoO _{2 组成}具有 3D 多孔碳嵌入的纳米粒子，因此作为锂离子电池负极表现出升级的结构稳定性和增强的反应动力学。因此，MoO ₂ /C 复合材料显示出优异的性能，在 200 和 1000 mA g ^{-1 下}循环 110 和 100 次后分别显示 1050 和 707 mAh g ^-1。此外，这项工作可以为锂离子电池高级MoO ₂ /C基负极的绿色制备提供新的见解。