Metal molybdate nanostructures hold great promise as better performing electrode material for sodium ion batteries. In this work, graphene encapsulated FeMoO₄ nanorods have been prepared using a simple, facile, scalable and low-cost technique. The uniform distribution of homogeneous and well-defined FeMoO₄ nanorods over graphene sheets is apparently evidenced by HR-TEM. The exclusively designed architecture effectively mitigates the severe volume changes associated with the conversion mechanism driven prolonged cycling along with the improved electronic conductivity of the electrode. As a result, FeMoO₄/graphene composite anode exploited for the first time as an anode for SIBs exhibits excellent electrochemical performance in terms of high specific capacity (294 mAh g⁻¹ at 50 mA g⁻¹ after 100 cycles), good cycling stability (83% after 100 cycles) and an acceptable rate capability (110 mAh g⁻¹ at 1000 mA g⁻¹). More importantly, FeMoO₄/Graphene composite anode demonstrates stable cycling behavior with almost 100% capacity retention even after 1000 cycles at 0.5 A g⁻¹, which implies that the FeMoO₄/G composite anode qualifies itself as a high performing anode material for sodium ion battery applications.

钼酸金属纳米结构有望成为性能更好的钠离子电池电极材料。在这项工作中，已经使用一种简单，便捷，可扩展且低成本的技术制备了石墨烯封装的FeMoO ₄纳米棒。HR-TEM显然证明了均匀且定义明确的FeMoO ₄纳米棒在石墨烯片上的均匀分布。独家设计的架构可有效缓解与转换机制驱动的长时间循环以及电极电导率提高相关的大量体积变化。结果，FeMoO ₄首次被用作SIBs阳极的/石墨烯复合阳极在高比容量（100个循环后在50 mA g ^-1下为294 mAh g ^-1），良好的循环稳定性（100个循环后为83％）方面表现出出色的电化学性能）并且在可接受的速率能力（110毫安克^-1以1000mA克^-1）。更重要的是，即使在0.5 A g ^-1下经过1000次循环，FeMoO ₄ /石墨烯复合阳极仍表现出稳定的循环行为，几乎具有100％的容量保持能力，这意味着FeMoO ₄ / G复合阳极本身就具有作为钠的高性能阳极材料的资格。离子电池的应用。