title: Self-assembly of hierarchical MoSx/CNT nanocomposites (2<x<3): towards high performance anode materials for lithium ion batteries.
abstract: Two dimension (2D) layered molybdenum disulfide (MoS2) has emerged as a promising candidate for the anode material in lithium ion batteries (LIBs). Herein, 2D MoSx (2 ≤ x ≤ 3) nanosheet-coated 1D multiwall carbon nanotubes (MWNTs) nanocomposites with hierarchical architecture were synthesized via a high-throughput solvent thermal method under low temperature at 200°C. The unique hierarchical nanostructures with MWNTs backbone and nanosheets of MoSx have significantly promoted the electrode performance in LIBs. Every single MoSx nanosheet interconnect to MWNTs centers with maximized exposed electrochemical active sites, which significantly enhance ion diffusion efficiency and accommodate volume expansion during the electrochemical reaction. A remarkably high specific capacity (i.e., > 1000 mAh/g) was achieved at the current density of 50 mA g(-1), which is much higher than theoretical numbers for either MWNTs or MoS2 along (~372 and ~670 mAh/g, respectively). We anticipate 2D nanosheets/1D MWNTs nanocomposites will be promising materials in new generation practical LIBs.
authors.affiliation: Pillar of Engineering Product Development, Singapore University of Technology and Design, Singapore 138682, Singapore.
authors.forename: Yumeng
authors.initials: Y
authors.lastname: Shi
authors.forename: Ye
authors.initials: Y
authors.lastname: Wang
authors.forename: Jen It
authors.initials: JI
authors.lastname: Wong
authors.forename: Alex Yuan Sheng
authors.initials: AY
authors.lastname: Tan
authors.forename: Chang-Lung
authors.initials: CL
authors.lastname: Hsu
authors.forename: Lain-Jong
authors.initials: LJ
authors.lastname: Li
authors.forename: Yi-Chun
authors.initials: YC
authors.lastname: Lu
authors.forename: Hui Ying
authors.initials: HY
authors.lastname: Yang