Issue 22, 2016

Synthesis of one-dimensional NiFe2O4 nanostructures: tunable morphology and high-performance anode materials for Li ion batteries

Abstract

In this study, various controllable one-dimensional NiFe2O4 nanostructures including solid nanofibers, yolk/shell nanofibers and nanotubes have been successfully synthesized by a novel “electrospinning–hydraulic agitation” combined method. The morphologies, components and structures of different NiFe2O4 samples were characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), N2 adsorption–desorption curve, X-ray photoelectron spectroscopy (XPS), Fourier transform infrared (FT-IR) spectroscopy, thermogravimetric analysis (TGA) and inductively coupled plasma-atomic emission spectrometry (ICP-AES). A possible formation mechanism for the different morphologies was proposed based on the experimental results. More importantly, this method has been verified to be universally applicable for fabricating a variety of ferrite materials with tunable shapes, such as CoFe2O4, ZnFe2O4, CdFe2O4 and α-Fe2O3. Compared with the NiFe2O4 nanoparticles, solid nanofibers and yolk/shell nanofibers, the NiFe2O4 nanotubes exhibited a superior lithium storage capacity, which stabilized at an average capacity of 1349 mA h g−1 even after 220 cycles at a current density of 100 mA g−1. The unique one-dimensional continuous tubular nanostructures and the higher surface area of NiFe2O4 nanotubes deliver a prominent contribution to the excellent electrochemical performance.

Graphical abstract: Synthesis of one-dimensional NiFe2O4 nanostructures: tunable morphology and high-performance anode materials for Li ion batteries

Supplementary files

Article information

Article type
Paper
Submitted
31 mar 2016
Accepted
02 may 2016
First published
03 may 2016

J. Mater. Chem. A, 2016,4, 8620-8629

Synthesis of one-dimensional NiFe2O4 nanostructures: tunable morphology and high-performance anode materials for Li ion batteries

J. Wang, G. Yang, L. Wang and W. Yan, J. Mater. Chem. A, 2016, 4, 8620 DOI: 10.1039/C6TA02655A

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