title: Core-shell α-Fe₂O₃@α-MoO₃ nanorods as lithium-ion battery anodes with extremely high capacity and cyclability.
abstract: α-Fe2O3 nanoparticles are uniformly coated on the surface of α-MoO3 nanorods through a two-step hydrothermal synthesis method. As the anode of a lithium-ion battery, α-Fe2O3@α-MoO3 core-shell nanorods exhibit extremely high lithium-storage performance. At a rate of 0.1 C (10 h per half cycle), the reversible capacity of α-Fe2O3@α-MoO3 core-shell nanorods is 1481 mA h g(-1) and a value of 1281 mA h g(-1) is retained after 50 cycles, which is much higher than that retained by bare α-MoO3 and α-Fe2O3 and higher than traditional theoretical results. Such a good performance can be attributed to the synergistic effect between α-Fe2O3 and α-MoO3 , the small size effect, one-dimensional nanostructures, short paths for lithium diffusion, and interface spaces. Our results reveal that core-shell nanocomposites have potential applications as high-performance lithium-ion batteries.
authors.affiliation: College of Sciences, Northeastern University, Shenyang 110004 (P.R. China), Tel: (+86) 24-83687658.
authors.forename: Qiang
authors.initials: Q
authors.lastname: Wang
authors.forename: Qi
authors.initials: Q
authors.lastname: Wang
authors.forename: De-An
authors.initials: DA
authors.lastname: Zhang
authors.forename: Jing
authors.initials: J
authors.lastname: Sun
authors.forename: Li-Li
authors.initials: LL
authors.lastname: Xing
authors.forename: Xin-Yu
authors.initials: XY
authors.lastname: Xue
keywords: core-shell structures; energy conversion; hydrothermal synthesis; lithium-ion batteries; nanostructures