LOW-TEMPERATURE SYNTHESIS OF SUPERPARAMAGNETIC Zn0.8Ni0.2Fe2O4 FERRITE NANOPARTICLES

Authors

  • Luong Thi Quynh Anh Ho Chi Minh City University of Technology
  • Nguyen Van Dan Ho Chi Minh City University of Technology
  • Do Minh Nghiep Ha Noi University of Science and Technology

DOI:

https://doi.org/10.15625/2525-2518/56/1/9805

Keywords:

crystalline nanoparticles, Zn0.8Ni0.2Fe2O4 ferrite, magnetic properties, superparamagnetism (SPM)

Abstract

The crystalline nanoparticles of Ni0.2Zn0.8Fe2O4 ferrite were synthesized by chemical co-precipitation with precursor concentration of 0.1M, then modified by 0.25M solution of oleic acid in pentanol, finally heated at temperatures 120, 140, 160 and 180oC for 6h in autoclave. The XRD, EDS and TEM confirmed that all of samples are crystalline and their particle size are 6, 6.5, 7 and 8 nm. The magnetic properties showed that the coercive force, the remanence of samples are about zero, the saturation magnetization Ms has values from 14.20 to 27.12 emu/g.

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Published

30-01-2018