title: Core-shell NiFe2O4@TiO2 nanorods: an anode material with enhanced electrochemical performance for lithium-ion batteries.
abstract: Hierarchical porous core-shell NiFe2O4@TiO2 nanorods have been fabricated with the help of hydrothermal synthesis, chemical bath deposition, and a subsequent calcinating process. The nanorods with an average diameter of 48 nm and length of about 300-600 nm turn out have a highly uniform morphology and are composed of nanosized primary particles. Owing to the synergistic effect of individual constituents as well as the hierarchical porous structure, the novel core-shell NiFe2O4@TiO2 nanorods exhibit superior electrochemical performance when evaluated as anode materials for lithium-ion batteries. At the current density of 100 mA g(-1), the composite exhibits a reversible specific capacity of 1034 mAh g(-1) up to 100 charge-discharge cycles, which is much higher than the uncoated NiFe2O4 nanorods. Even when cycled at 2000 mA g(-1), the discharge capacity could still be maintained at 358 mAh g(-1).
authors.affiliation: State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, Jilin (P. R. China), Fax: (+86) 431-85262836; University of Chinese Academy of Sciences, Beijing, 100049, (P. R. China).
authors.forename: Gang
authors.initials: G
authors.lastname: Huang
authors.forename: Feifei
authors.initials: F
authors.lastname: Zhang
authors.forename: Xinchuan
authors.initials: X
authors.lastname: Du
authors.forename: Jianwei
authors.initials: J
authors.lastname: Wang
authors.forename: Dongming
authors.initials: D
authors.lastname: Yin
authors.forename: Limin
authors.initials: L
authors.lastname: Wang
keywords: anode materials; core-shell particles; lithium-ion batteries; metal-organic frameworks; nanostructures