title: α-Fe2O3 nanoparticle-loaded carbon nanofibers as stable and high-capacity anodes for rechargeable lithium-ion batteries.
abstract: α-Fe(2)O(3) nanoparticle-loaded carbon nanofiber composites were fabricated via electrospinning FeCl(3)·6H(2)O salt-polyacrylonitrile precursors in N,N-dimethylformamide solvent and the subsequent carbonization in inert gas. Scanning electron microscopy, transmission electron microscopy, energy dispersive X-ray spectroscopy, X-ray photoelectron spectroscopy, X-ray diffraction, and elemental analysis were used to study the morphology and composition of α-Fe(2)O(3)-carbon nanofiber composites. It was indicated that α-Fe(2)O(3) nanoparticles with an average size of about 20 nm have a homogeneous dispersion along the carbon nanofiber surface. The resultant α-Fe(2)O(3)-carbon nanofiber composites were used directly as the anode material in rechargeable lithium half cells, and their electrochemical performance was evaluated. The results indicated that these α-Fe(2)O(3)-carbon nanofiber composites have high reversible capacity, good capacity retention, and acceptable rate capability when used as anode materials for rechargeable lithium-ion batteries.
authors.affiliation: Fiber and Polymer Science Program, Department of Textile Engineering, Chemistry and Science, North Carolina State University, Raleigh, North Carolina 27695-8301, USA.
authors.forename: Liwen
authors.initials: L
authors.lastname: Ji
authors.forename: Ozan
authors.initials: O
authors.lastname: Toprakci
authors.forename: Mataz
authors.initials: M
authors.lastname: Alcoutlabi
authors.forename: Yingfang
authors.initials: Y
authors.lastname: Yao
authors.forename: Ying
authors.initials: Y
authors.lastname: Li
authors.forename: Shu
authors.initials: S
authors.lastname: Zhang
authors.forename: Bingkun
authors.initials: B
authors.lastname: Guo
authors.forename: Zhan
authors.initials: Z
authors.lastname: Lin
authors.forename: Xiangwu
authors.initials: X
authors.lastname: Zhang
mesh_terms: D002244:Carbon / Q000737:chemistry*; D011211:Electric Power Supplies; D004566:Electrodes; D005290:Ferric Compounds / Q000737:chemistry*; D008094:Lithium / Q000737:chemistry*; D057139:Nanofibers / Q000737:chemistry*
chemical_list: D005290:Ferric Compounds; C000499:ferric oxide; D002244:Carbon; D008094:Lithium