The effect of agarose content on the morphology, phase evolution, and magnetic properties of CoFe 2 O 4  nanoparticles prepared by sol‐gel autocombustion method | Zendy

Rouhani Amir Reza | Zendy; EsmaeilKhanian Amir Hossein | Zendy; Davar Fatemeh | Zendy; Hasani Saeed | Zendy

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The effect of agarose content on the morphology, phase evolution, and magnetic properties of CoFe 2 O 4 nanoparticles prepared by sol‐gel autocombustion method

Author(s) -

Rouhani Amir Reza,

EsmaeilKhanian Amir Hossein,

Davar Fatemeh,

Hasani Saeed

Publication year - 2017

Publication title -

international journal of applied ceramic technology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.4

H-Index - 57

eISSN - 1744-7402

pISSN - 1546-542X

DOI - 10.1111/ijac.12832

Subject(s) - materials science , coercivity , agarose , fourier transform infrared spectroscopy , spinel , sol gel , nanoparticle , nitric acid , analytical chemistry (journal) , agarose gel electrophoresis , citric acid , phase (matter) , diffraction , powder diffraction , chemical engineering , nuclear chemistry , nuclear magnetic resonance , nanotechnology , chromatography , metallurgy , chemistry , optics , organic chemistry , biochemistry , physics , engineering , gene , condensed matter physics

Hard‐magnetic CoFe 2 O 4 nanoparticles were produced with the sol‐gel autocombustion route using agarose and citric acid as a neutral organic gel and combustion agent. For this purpose, the obtained gel is annealed at 800°C for 3 hours and then the spinel structure of the samples was confirmed by X‐ray diffraction ( XRD ). In addition, the existence of metal‐oxygen complexes in the gel and nanoparticles was investigated by Fourier transformation infrared ( FTIR ) spectra. Furthermore, FESEM images showed that semispherical and rod‐like particles were obtained by variation in agarose contents. For the rod‐like sample with 2.5 g agarose, the saturation magnetization and coercivity were measured equal to 71.7 emu/g and 10076.84 Oe, respectively.

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