Graphene oxide-decorated Fe2(MoO4)3 microflowers as a promising anode for lithium and sodium storage

作者：Chunhua Han, Xiaoji Ren, Qidong Li, Wen Luo, Lei Huang, Liang Zhou, Liqiang Mai · 发表于：Nano Research · 年份：2017 · DOI：10.1007/s12274-017-1742-9 · 被引用次数：28 · 研究领域：Advancements in Battery Materials、Supercapacitor Materials and Fabrication、Advanced Battery Materials and Technologies

Mixed transition metal oxides (MTMOs) have received intensive attention as promising anode materials for lithium-ion batteries (LIBs) and sodium-ion batteries (SIBs). In this work, we demonstrate a facile one-step water-bath method for the preparation of graphene oxide (GO) decorated Fe 2 (MoO 4 ) 3 (FMO) microflower composite (FMO/GO), in which the FMO is constructed by numerous nanosheets. The resulting FMO/GO exhibits excellent electrochemical performances in both LIBs and SIBs. As the anode material for LIBs, the FMO/GO delivers a high capacity of 1,220 mAh·g –1 at 200 mA·g –1 after 50 cycles and a capacity of 685 mAh·g –1 at a high current density of 10 A·g –1 . As the anode material for SIBs, the FMO/GO shows an initial discharge capacity of 571 mAh·g –1 at 100 mA·g –1 , maintaining a discharge capacity of 307 mAh·g –1 after 100 cycles. The promising performance is attributed to the good electrical transport from the intimate contact between FMO and graphene oxide. This work indicates that the FMO/GO composite is a promising anode for high-performance lithium and sodium storage.