title: A facile synthesis of a carbon-encapsulated Fe3O4 nanocomposite and its performance as anode in lithium-ion batteries.
abstract: A carbon-encapsulated Fe3O4 nanocomposite was prepared by a simple one-step pyrolysis of iron pentacarbonyl without using any templates, solvents or surfactants. The structure and morphology of the nanocomposite was investigated by X-ray diffraction, scanning electron microscopy, transmission electron microscopy, Brunauer-Emmett-Teller analysis and Raman spectroscopy. Fe3O4 nanoparticles are dispersed intimately in a carbon framework. The nanocomposite exhibits well constructed core-shell and nanotube structures, with Fe3O4 cores and graphitic shells/tubes. The as-synthesized material could be used directly as anode in a lithium-ion cell and demonstrated a stable capacity, and good cyclic and rate performances.
authors.affiliation: Institute for Nanotechnology (INT), Karlsruhe Insititute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, Karlsruhe, 76344, Germany ; current address: Centre for Automotive Energy Materials (CAEM), International Advanced Research Centre for Powder Metallurgy and New Materials (ARCI), Taramani, Chennai-600113, India.
authors.forename: Raju
authors.initials: R
authors.lastname: Prakash
authors.forename: Katharina
authors.initials: K
authors.lastname: Fanselau
authors.forename: Shuhua
authors.initials: S
authors.lastname: Ren
authors.forename: Tapan
authors.initials: T
authors.lastname: Kumar Mandal
authors.forename: Christian
authors.initials: C
authors.lastname: Kübel
authors.forename: Horst
authors.initials: H
authors.lastname: Hahn
authors.forename: Maximilian
authors.initials: M
authors.lastname: Fichtner
keywords: electrochemistry; iron oxide; lithium-ion battery; nanoparticles; pyrolysis