title: Yolk-Shell TiO2@C Nanocomposite as High-Performance Anode Material for Sodium-Ion Batteries.
abstract: Yolk-shell TiO2@C nanocomposites have been synthesized successfully through a simple self-catalyzing solvothermal method. The structural and morphological characterizations reveal that TiO2@C nanocomposite has a yolk-shell microsphere morphology with diameters of 1-2 μm, and both yolk and shell are composed of TiO2nanoparticles (∼10 nm). The as-prepared yolk-shell TiO2@C composites exhibit superior sodium storage properties, with a specific capacity of 210 mAh g-1, an outstanding cycle life of 85% capacity retention of 2000 cycles and extraordinary rate performance at 40 C rate. All the results indicate that the yolk-shell TiO2@C nanocomposite can be suggested as a promising anode material for high-performance sodium-ion batteries.
authors.affiliation: College of Chemistry and Molecular Sciences, Hubei Key Laboratory of Electrochemical Power Sources, Wuhan University , Wuhan 430072, China.
authors.forename: Shen
authors.initials: S
authors.lastname: Qiu
authors.affiliation: College of Chemistry, Central China Normal University , Wuhan 430079, P. R. China.
authors.forename: Lifen
authors.initials: L
authors.lastname: Xiao
authors.affiliation: College of Chemistry and Molecular Sciences, Hubei Key Laboratory of Electrochemical Power Sources, Wuhan University , Wuhan 430072, China.
authors.forename: Xinping
authors.initials: X
authors.lastname: Ai
authors.affiliation: College of Chemistry and Molecular Sciences, Hubei Key Laboratory of Electrochemical Power Sources, Wuhan University , Wuhan 430072, China.
authors.forename: Hanxi
authors.initials: H
authors.lastname: Yang
authors.affiliation: College of Chemistry and Molecular Sciences, Hubei Key Laboratory of Electrochemical Power Sources, Wuhan University , Wuhan 430072, China.
authors.forename: Yuliang
authors.identifier: http://orcid.org/0000-0001-6092-5652
authors.initials: Y
authors.lastname: Cao
keywords: Na-ion batteries; TiO2@C; self-catalyzed reaction; solvothermal synthesis; yolk−shell nanostructure