An investigation the effect of annealing temperature on the structural and magnetic properties of lead spinel ferrite nanoparticles (PbFe2O4)

Document Type : supplement

Authors

1 univercity of shahid chamran

2 university of shahid chamran

Abstract

In this work, lead spinel ferrite nanoparticles (PbFe2O4) was synthesized by sol-gel method. A gel of metal nitrates with proper molar ratios was firstly prepared and the effect annealing temperature on their structural and magnetic properties have been investigated. The annealing temperature of samples was determined by thermal analysis (TG/DTA). The structural and magnetic properties of samples were characterized by X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), Fourier transform infrared spectrophotometer (FT-IR), and vibrating sample magnetometer (VSM). The results of x-ray diffraction patterns showed that by increasing annealing temperature, lead spinel phase percentage of samples increase and impurity phases such as lead oxide and hematite have been decreased. Also, the results of field emission scanning electron microscope showed that the particles size is nano, but particles are bounded together. Also nanoparticles size increases with annealing temperature and well-defined shape. The Hysteresis loops of samples show that by increasing annealing temperature the coercivity was increased. The results of Fourier transform infrared spectrometry annealed samples show that structure of samples at temperatures of 650 and 700°C is spinel.

Keywords

Journal of Research on Many-body Systems
Volume 6, Special Issue (1)
First national conference of nanophysics and metamaterial from simulation to industry 10/2015
December 2016
Pages 43-51

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History

  • Receive Date: 29 November 2015
  • Revise Date: 09 March 2016
  • Accept Date: 12 December 2016

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