Hydrothermal synthesis and electrochemical properties of MnFe2O4 nanoplates

Department of Chemical and Biochemical Engineering, College of Chemistry and Chemical Engineering, Xiamen University, 422 Siming South Road, Xiamen, 361000, China

Adv. Mater. Lett., 2017, 8 (11), pp 1052-1056

DOI: 10.5185/amlett.2017.1543

Publication Date (Web): Aug 05, 2017

Copyright © IAAM-VBRI Press

E-mail: zcwang@xmu.edu.cn

Abstract

MnFe₂O₄ nanoplates have been synthesized by a simple hydrothermal method. X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), transmission electron microscopy (TEM), and selected area electron diffraction (SAED) have been employed to characterize the structure and morphology of the as-prepared sample. The results show that the products are plate-like morphology with 100-500 nm in length and 100-200 nm in thickness. Contrast experiments indicate that the formation of the plate-like nanostructure could be ascribed to the effect of citrate complexation. Magnetic measurements at 300 K gave the saturation magnetization and the coercive field of nanoplates 39.2 emu g^-1 and 91.5 Oe, respectively. The electrochemical performance as anode material for lithium-ion batteries was further evaluated by cyclic voltammetry (CV), electrochemical impedance and charge-discharge measurements. It was demonstrated that the material could provide an initial reversible capacity of 1067 mAh g^-1 at a current density of 0.1 mA cm^-2 over the voltage range from 0.5 to 3.0 V. 

Keywords

Magnetic materials, hydrothermal synthesis, formation mechanism, magnetic properties, electrochemical properties.