title: One-Pot Synthesis of Carbon-Coated Nanostructured Iron Oxide on Few-Layer Graphene for Lithium-Ion Batteries.
abstract: Nanostructure engineering has been demonstrated to improve the electrochemical performance of iron oxide based electrodes in Li-ion batteries (LIBs). However, the synthesis of advanced functional materials often requires multiple steps. Herein, we present a facile one-pot synthesis of carbon-coated nanostructured iron oxide on few-layer graphene through high-pressure pyrolysis of ferrocene in the presence of pristine graphene. The ferrocene precursor supplies both iron and carbon to form the carbon-coated iron oxide, while the graphene acts as a high-surface-area anchor to achieve small metal oxide nanoparticles. When evaluated as a negative-electrode material for LIBs, our composite showed improved electrochemical performance compared to commercial iron oxide nanopowders, especially at fast charge/discharge rates.
authors.affiliation: Analytical Chemistry - Center for Electrochemical Sciences (CES), Ruhr-Universität Bochum, 44780 Bochum (Germany). zhenyus@iccas.ac.cn.|Laboratory of Industrial Chemistry, Ruhr-Universität Bochum, 44780 Bochum (Germany). zhenyus@iccas.ac.cn.|State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029 (P.R. China). zhenyus@iccas.ac.cn.
authors.forename: Zhenyu
authors.initials: Z
authors.lastname: Sun
authors.affiliation: Analytical Chemistry - Center for Electrochemical Sciences (CES), Ruhr-Universität Bochum, 44780 Bochum (Germany).
authors.forename: Edyta
authors.initials: E
authors.lastname: Madej
authors.affiliation: Inorganic Chemistry II, Ruhr-Universität Bochum, 44780 Bochum (Germany).|Electron Microscopy for Materials Science (EMAT), Universiteit Antwerp, 2020 Antwerp (Belgium).
authors.forename: Christian
authors.initials: C
authors.lastname: Wiktor
authors.affiliation: Laboratory of Industrial Chemistry, Ruhr-Universität Bochum, 44780 Bochum (Germany).
authors.forename: Ilya
authors.initials: I
authors.lastname: Sinev
authors.affiliation: Inorganic Chemistry II, Ruhr-Universität Bochum, 44780 Bochum (Germany).
authors.forename: Roland A
authors.initials: RA
authors.lastname: Fischer
authors.affiliation: Electron Microscopy for Materials Science (EMAT), Universiteit Antwerp, 2020 Antwerp (Belgium).
authors.forename: Gustaaf
authors.initials: G
authors.lastname: van Tendeloo
authors.affiliation: Laboratory of Industrial Chemistry, Ruhr-Universität Bochum, 44780 Bochum (Germany).
authors.forename: Martin
authors.initials: M
authors.lastname: Muhler
authors.affiliation: Analytical Chemistry - Center for Electrochemical Sciences (CES), Ruhr-Universität Bochum, 44780 Bochum (Germany).
authors.forename: Wolfgang
authors.initials: W
authors.lastname: Schuhmann
authors.affiliation: Analytical Chemistry - Center for Electrochemical Sciences (CES), Ruhr-Universität Bochum, 44780 Bochum (Germany). edgar.ventosa@rub.de.
authors.forename: Edgar
authors.initials: E
authors.lastname: Ventosa
keywords: ferrocene; graphene; iron oxide; lithium-ion batteries; nanostructures