title: Self-assembly of nano/micro-structured Fe3O4 microspheres among 3D rGO/CNTs hierarchical networks with superior lithium storage performances.
abstract: Nano/micro-structured Fe3O4 microspheres among three-dimensional (3D) reduced graphene oxide (rGO)/carbon nanotubes (CNTs) hierarchical networks (the ternary composite is denoted as rGCFs) have been synthesized using a facile, self-assembled and one-pot hydrothermal approach. The rGCFs composite exhibits superior lithium storage performances: initial discharge and charge capacities of 1452 and 1036 mAh g(-1), respectively, remarkable rate capability at current densities from 100 mA g(-1) to 10 A g(-1) and outstanding cycling performance up to 200 cycles. The highly enhanced electrochemical performances of rGCFs depend heavily on the robust 3D rGO/CNTs hierarchical networks, the stable nano/microstructures of active Fe3O4 microspheres and the positive synergistic effects of building components. The systematic structure characterizations and electrochemical investigations provide insightful understanding towards the relationship between structure/morphology and lithium storage performances, which may pave the way for the rational design of composite materials with desirable goals.
authors.affiliation: College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, People's Republic of China. State Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, People's Republic of China.
authors.forename: Jinlong
authors.initials: J
authors.lastname: Liu
authors.forename: Haibo
authors.initials: H
authors.lastname: Feng
authors.forename: Xipeng
authors.initials: X
authors.lastname: Wang
authors.forename: Dong
authors.initials: D
authors.lastname: Qian
authors.forename: Jianbo
authors.initials: J
authors.lastname: Jiang
authors.forename: Junhua
authors.initials: J
authors.lastname: Li
authors.forename: Sanjun
authors.initials: S
authors.lastname: Peng
authors.forename: Miao
authors.initials: M
authors.lastname: Deng
authors.forename: Youcai
authors.initials: Y
authors.lastname: Liu