title: Thermal evaporation-induced anhydrous synthesis of Fe3O4-graphene composite with enhanced rate performance and cyclic stability for lithium ion batteries.
abstract: We present a high-yield and low cost thermal evaporation-induced anhydrous strategy to prepare hybrid materials of Fe3O4 nanoparticles and graphene as an advanced anode for high-performance lithium ion batteries. The ~10-20 nm Fe3O4 nanoparticles are densely anchored on conducting graphene sheets and act as spacers to keep the adjacent sheets separated. The Fe3O4-graphene composite displays a superior battery performance with high retained capacity of 868 mA h g(-1) up to 100 cycles at a current density of 200 mA g(-1), and 539 mA h g(-1) up to 200 cycles when cycling at 1000 mA g(-1), high Coulombic efficiency (above 99% after 200 cycles), good rate capability, and excellent cyclic stability. The simple approach offers a promising route to prepare anode materials for practical fabrication of lithium ion batteries.
authors.affiliation: Center of Super-Diamond and Advanced Films, City University of Hong Kong, Hong Kong SAR, PR China.
authors.forename: Yucheng
authors.initials: Y
authors.lastname: Dong
authors.forename: Ruguang
authors.initials: R
authors.lastname: Ma
authors.forename: Mingjun
authors.initials: M
authors.lastname: Hu
authors.forename: Hua
authors.initials: H
authors.lastname: Cheng
authors.forename: Qingdan
authors.initials: Q
authors.lastname: Yang
authors.forename: Yang Yang
authors.initials: YY
authors.lastname: Li
authors.forename: Juan Antonio
authors.initials: JA
authors.lastname: Zapien