Premium
Core–Shell Structure of Hierarchical Quasi‐Hollow MoS 2 Microspheres Encapsulated Porous Carbon as Stable Anode for Li‐Ion Batteries
Author(s) -
Wan Zhongming,
Shao Jie,
Yun Jiaojiao,
Zheng Huiyuan,
Gao Tian,
Shen Ming,
Qu Qunting,
Zheng Honghe
Publication year - 2014
Publication title -
small
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.785
H-Index - 236
eISSN - 1613-6829
pISSN - 1613-6810
DOI - 10.1002/smll.201401286
Subject(s) - materials science , anode , annealing (glass) , chemical engineering , porosity , dispersity , microsphere , carbon fibers , nanotechnology , composite material , composite number , polymer chemistry , electrode , chemistry , engineering
Monodisperse sulfonated polystyrene (SPS) microspheres are employed as both the template and carbon source to prepare MoS 2 quasi‐hollow microspheres‐encapsulated porous carbon. The synthesis procedure involves the hydrothermal growth of MoS 2 ultrathin nanosheets on the surface of SPS microspheres and subsequent annealing to remove SPS core. Incomplete decomposition of SPS during annealing due to the confining effect of MoS 2 shells leaves residual porous carbon in the interior. When being evaluated as the anode materials of Li‐ion batteries, the as‐prepared C@MoS 2 microspheres exhibit excellent cycling stability (95% of capacity retained after 100 cycles) and high rate behavior (560 mAh g −1 at 5 A g −1 ).