title: In situ formation of carbon encapsulated nanosheet-assembled MoSe2hollow nanospheres with boosting lithium storage.
abstract: Carbon encapsulated nanosheet-assembled MoSe2hollow nanospheres were in situ fabricated via a facile hydrothermal treatment and subsequent annealing treatment. When evaluated as anode material for lithium-ion batteries, the MoSe2/C hybrid hollow spheres manifest prodigious cycling stability (a high reversible capacity of 795mAhg-1after 250 cycles at 0.2Ag-1and 744mAhg-1after 300 cycles at 1Ag-1) and compelling rate capability (370mAhg-1even at a high current density of 10Ag-1) compared to the bare MoSe2hollow nanospheres. The impressive lithium storage properties of the as-prepared MoSe2/C nanocomposites can be attributed to the introduction of glucose-derived conductive carbon and the design of hollow structure, which facilitates fast electron and ion transfer, relieves the stress caused by volume variation upon cycling and improves the electric conductivity. Such remarkable electrochemical performances together with universal approach endow this material with potential application for next generation lithium-ion batteries.
authors.affiliation: State Key Laboratory for Power Metallurgy, Central South University, Changsha 410083, China.
authors.forename: Laidi
authors.initials: L
authors.lastname: Wu
authors.affiliation: State Key Laboratory for Power Metallurgy, Central South University, Changsha 410083, China.
authors.forename: Pengfei
authors.initials: P
authors.lastname: Tan
authors.affiliation: State Key Laboratory for Power Metallurgy, Central South University, Changsha 410083, China.
authors.forename: Yi
authors.initials: Y
authors.lastname: Liu
authors.affiliation: State Key Laboratory for Power Metallurgy, Central South University, Changsha 410083, China.
authors.forename: Yanyang
authors.initials: Y
authors.lastname: Shang
authors.affiliation: State Key Laboratory for Power Metallurgy, Central South University, Changsha 410083, China.
authors.forename: Wenwen
authors.initials: W
authors.lastname: Liu
authors.affiliation: State Key Laboratory for Power Metallurgy, Central South University, Changsha 410083, China.
authors.forename: Xiang
authors.initials: X
authors.lastname: Xiong
authors.affiliation: State Key Laboratory for Power Metallurgy, Central South University, Changsha 410083, China. Electronic address: jun.pan@csu.edu.cn.
authors.forename: Jun
authors.initials: J
authors.lastname: Pan
keywords: Anode; Hollow spheres; Lithium-ion batteries; MoSe(2); Nanocomposites