Open AccessLOW-TEMPERATURE SYNTHESIS OF SUPERPARAMAGNETIC Zn0.8Ni0.2Fe2O4 FERRITE NANOPARTICLES
Author(s) -
Luong Thi Quynh Anh,
Nguyen Van Dan,
Do Minh Nghiep
Publication year - 2018
Publication title -
vietnam journal of science and technology/science and technology
Language(s) - English
Resource type - Journals
eISSN - 2815-5874
pISSN - 2525-2518
DOI - 10.15625/2525-2518/56/1/9805
Subject(s) - coercivity , materials science , remanence , superparamagnetism , nanoparticle , particle size , ferrite (magnet) , autoclave , chemical engineering , coprecipitation , saturation (graph theory) , magnetization , analytical chemistry (journal) , metallurgy , composite material , chemistry , nanotechnology , condensed matter physics , chromatography , magnetic field , combinatorics , engineering , physics , mathematics , quantum mechanics
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.