Core–Shell NiFe2O4@TiO2 Nanorods: An Anode Material with Enhanced Electrochemical Performance for Lithium‐Ion Batteries. Issue 35 (17th July 2014)

• Record Type: Journal Article
• Authors: Huang, Gang; Zhang, Feifei; Du, Xinchuan; Wang, Jianwei; Yin, Dongming; Wang, Limin
• Is Part Of: Chemistry. Volume 20:Issue 35(2014)
• Page Start: 11214
• Page End: 11219
• Publication Date: 2014-07-17
• Subjects: Chemistry -- Periodicals; 540
• DOI: 10.1002/chem.201403148
• Languages: English
• ISSNs: 0947-6539

Abstract

<abstract abstract-type="main" xml:lang="en"> <title>Abstract</title> <p>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.</p> </abstract>