Construction of MoS2/C Hierarchical Tubular Heterostructures for High-Performance Sodium Ion Batteries

作者：Qichang Pan, Qiaobao Zhang, Fenghua Zheng, Yanzhen Liu, Youpeng Li, Xing Ou, Xunhui Xiong, Chenghao Yang, Meilin Liu · 发表于：ACS Nano · 年份：2018 · DOI：10.1021/acsnano.8b07172 · 被引用次数：315 · 研究领域：Advancements in Battery Materials、Advanced Battery Materials and Technologies、MXene and MAX Phase Materials

Molybdenum disulfide (MoS 2 ) has been considered to be a promising anode material for sodium ion batteries (SIBs), because of its high capacity and graphene-like layered structure. However, irreversible conversion reaction during the sodiation/desodiation process is a major problem that must be overcome before its practical applications. In this work, MoS 2 /amorphous carbon (C) microtubes (MTs) composed of heterostructured MoS 2 /C nanosheets have been developed via a simple template method. The existence of MoS 2 /C heterointerface plays a key role in achieving high and stable performance by stabilizing the reaction products Mo and sulfide phases, providing fast electronic and Na + ions diffusion mobility, and alleviating the volume change. MoS 2 /C MTs exhibit a high reversible specific capacity of 563.5 mA h g –1 at 0.2 A g –1, good rate performance (520.5, 489.4, 452.9, 425.1, and 401.3 mA h g –1 at 0.5, 1.0, 2.0, 5.0, and 10.0 A g –1, respectively), and excellent cycling stability (484.9 mA h g –1 at 2.0 A g –1 after 1500 cycles).