期刊
MATERIALS LETTERS
卷 65, 期 9, 页码 1438-1440出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.matlet.2011.02.026
关键词
Nickel ferrite; Nanosheet; Oriented aggregation; FTIR Spectra; Magnetic properties
Sheet-like nickel ferrite (NiFe2O4) has been synthesised with PVA matrices using co-precipitation technique. The sheet is formed from the oriented aggregation of single crystalline NiFe2O4 nanoparticles with PVA as the structure directing template. The synthesised materials are characterised based on X-ray diffraction (XRD), transmission electron microscopy (TEM), high-resolution transmission electron microscopy (HRTEM), high-resolution scanning electron microscopy (HRSEM), Fourier transform infrared spectroscopy (FTIR) and vibrating sample magnetometry (VSM). The XRD results show that the nanocrystal contains single phase spinel structure of Fd3m space group. The existence of PVA with nanoparticles has been confirmed by FTIR spectra. The room temperature ferromagnetic property is exhibited by the as synthesised sample with high saturation magnetisation. (C) 2011 Elsevier BM. All rights reserved.
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