One-dimensional magnetite Fe3O4 nanowires as electrode material for Li-ion batteries with improved electrochemical performance

Abstract

One-dimensional magnetite (Fe3O4) nanowires were synthesized by the low temperature hydrothermal method. The as-prepared Fe3O4 nanowires were systematically characterized by X-ray diffraction, field emission scanning electron microscopy and transmission electron microscopy. X-ray diffraction and transmission electron microscopy have confirmed the cubic structure of Fe3O4 nanowires with a space group of Fd (3) over barm. Electrochemical properties of Fe3O4 nanowires were tested as anodes in lithium-ion cells by cyclic voltammetry and galvanostatic charge/discharge. Fe3O4 nanowires exhibited an excellent reversible lithium storage capacity and a satisfactory cycling performance. (C) 2012 Elsevier B.V. All rights reserved.