Preparation of cobalt ferrite nanoparticles via a novel solvothermal approach using divalent iron salt as precursors

Ma, Jie; Zhao, Jin-Hua; Li, Wenlie; Zhang, Shuping; Tian, Zhenran; Basov, Sergey

doi:10.1016/j.materresbull.2012.09.072

Cited by 19 publications

(8 citation statements)

References 23 publications

(28 reference statements)

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“…Our group has worked to develop new optimized synthetic routes of nanoparticles, and among all the cases studied, magnetic ferrite nanoparticles deserve a special mention because of their huge range of applications in chemistry (Sheykhan et al, 2012;Wang et al, 2011), medicine (Amiri & Shokrollahi, 2013;Wu et al, 2011), electronics (Boon et al, 2012;Jin et al, 2012), materials (Ló pez et al, 2012;Singh et al, 2011), environmental applications (Tang & Lo, 2013) etc. To date, various synthetic methodologies have been developed to generate a family of MFe 2 O 4 nanoparticles, including co-precipitation (Maaz et al, 2009;Zhang et al, 2010;Misra et al, 2004), reverse micelles (Rana et al, 2010) and solvothermal decomposition (Ma et al, 2013;Yá ñ ez-Vilar et al, 2009). We have optimized the generation of MFe 2 O 4 (M = Mn, Fe, Co, Ni, Zn) nanoparticles with a onepot methodology (Solano et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

Neutron and X-ray diffraction study of ferrite nanocrystals obtained by microwave-assisted growth. A structural comparison with the thermal synthetic route

et al. 2014

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Neutron and X‐ray powder diffraction have been used to investigate the differences between the crystal growth of ferrite magnetic nanoparticles (MFe2O4 with M = Mn, Fe, Co, Ni, Zn) by two methodologies: microwave radiation and thermal decomposition routes. Rietveld refinement has been used to extract the cationic distribution, the microstructure and magnetic information. Results for the nanoparticles produced by the two procedures evidence similar cationic distribution, microstructure and magnetic properties: complete cationic disorder for M = Mn and Co, crystal size around/below 10 nm etc. It is thus proven that microwave‐assisted growth is a promising eco‐friendly synthetic technique for the generation of high‐quality nanocrystals with comparable structure and properties to those produced by the thermal methodology, even though the microwave route needs a shorter time and lower annealing temperature to obtain the final crystal nanoparticles.

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Section: Introductionmentioning

confidence: 99%

Neutron and X-ray diffraction study of ferrite nanocrystals obtained by microwave-assisted growth. A structural comparison with the thermal synthetic route

et al. 2014

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“…Many techniques have already been employed in the development of cobalt ferrite nanoparticles including a novel solvothermal approach [7], microemulsions [8], a new nonaqueous route [9], a chemical co-precipitation method [10] and the sol-gel technique [11].…”

Section: Introductionmentioning

confidence: 99%

Developments of cobalt ferrite nanoparticles prepared by the sol–gel process

Sajjia

Oubaha

Hasanuzzaman

et al. 2014

Ceramics International

147

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In the phase of the study reported, the sol-gel technique was followed in the preparation of cobalt ferrite amorphous powder following the same procedure which was selected as the best approach as described in a previous study. It was assumed that there must be a correlation between the heat treatment operational parameters and the structural properties of the material being synthesized. Similarly, it was understood that some heat treatment is necessary to completely decompose the organic and nitrate contents present in the amorphous powder. Having ensured that the heat treatment parameters could be changed without producing a material with poorer properties, it was then possible to produce batches of powders using milder conditions in the heat treatment operation. The particle size distributions of these new batches of nanoparticles were estimated to be in the range 7-28 nm and since the results showed promise, their magnetic properties were also determined.

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“…CoFe2O4 receives great attention for distinctive transport and magnetic properties [1][2][3]. It is for instance considered in the varies applications of magneto-optical information storage media, medical diagnosis, magnetic sensors, medical resonance imaging magnetically controlled, drug delivery, catalysts, energy storage devices and optoelectronics [4][5][6][7][8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Altering the properties of the magnetic Co ferrite nanoparticles fabricated by modified inverse coprecipitation for high-frequency applications

Kershi

Aldirham

2020

Preprint

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Magnetic Co ferrite nanoparticles doped with non-magnetic ions (Zn2+) fabricated by modified inverse coprecipitation technique. X-ray calculations show that the average crystallite size (D) and the average lattice constant (a) of CoZn ferrite nanoparticles increase from 32.33 to 52.87 nm and from 8.39 to 8.41Ǻ respectively with increasing non-magnetic Zn2+ ions from 0.00 to 0.55. Morphological forms and M-O at A and B sites studied by SEM and FT-IR spectroscopy. Measurements of the structural, optical, electrical and magnetic characterization of the CoZn ferrite nanoparticles strongly depend on non-magnetic Zn2+ ions content (y). Non-magnetic ions transform Co ferrite from hard and dielectric nature to soft and semiconductor nature. Values of Coercivity and the remanence decrease as non-magnetic Zn2+ ions increases to the minimum values 955 Oe and 6 emu /g for the sample with Zn = 0.55. Co0.45Zn0.55Fe2O4 is might be suitable for high-frequency applications where it has the smallest value of optical gap, the largest value of resistivity and the lowest value of dielectric loss factor.

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Preparation of cobalt ferrite nanoparticles via a novel solvothermal approach using divalent iron salt as precursors

Cited by 19 publications

References 23 publications

Neutron and X-ray diffraction study of ferrite nanocrystals obtained by microwave-assisted growth. A structural comparison with the thermal synthetic route

Neutron and X-ray diffraction study of ferrite nanocrystals obtained by microwave-assisted growth. A structural comparison with the thermal synthetic route

Developments of cobalt ferrite nanoparticles prepared by the sol–gel process

Altering the properties of the magnetic Co ferrite nanoparticles fabricated by modified inverse coprecipitation for high-frequency applications

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