title: Hydrothermal fabrication of MnCO₃@rGO composite as an anode material for high-performance lithium ion batteries.
abstract: The layer structure of graphene or reduced graphene oxide (rGO) opens an avenue for the development of advanced functional materials. In this paper, a MnCO3@rGO composite (MGC) was fabricated by anchoring MnCO3 nanoparticles (NPs) on rGO sheets in the hydrothermal reduction process of graphene oxide by using NaBH4. MnCO3 NPs with an average diameter of 8-20 nm were anchored onto the surface of rGO. The layer structure of rGO was maintained in MGC. The MGC was employed as an anode active material for lithium ion batteries. Excellent performances were obtained with a high specific capacity up to 857 mA·h·g(-1) after 100 cycles. The various charging-discharging current rates of 0.2-5.0 C exhibited no clear negative effect on the recycling stability of the MGC. The enhanced structure stability and ion and electron conductivity of the MGC are responsible for the superior electrochemical properties.
authors.affiliation: Institute for Advanced Materials and Technology, University of Science & Technology Beijing , Beijing 100083, People's Republic of China.
authors.forename: Liankai
authors.initials: L
authors.lastname: Zhou
authors.forename: Xianghua
authors.initials: X
authors.lastname: Kong
authors.forename: Min
authors.initials: M
authors.lastname: Gao
authors.forename: Fang
authors.initials: F
authors.lastname: Lian
authors.forename: Baojun
authors.initials: B
authors.lastname: Li
authors.forename: Zhongfu
authors.initials: Z
authors.lastname: Zhou
authors.forename: Huaqiang
authors.initials: H
authors.lastname: Cao