Controlling the size and magnetic properties of nano CoFe2O4 by microwave assisted co-precipitation method

T. Prabhakaran, R.V. Mangalaraja, J.C. Denardin, Juliano Casagrande Denardin

Research output: Contribution to journalArticle

  • 2 Citations

Abstract

In this report, cobalt ferrite nanoparticles synthesized using microwave assisted co-precipitation method was reported. Efforts have been made to control the particles size, distribution, morphology and magnetic properties of cobalt ferrite nanoparticles by varying the concentration of NaOH solution and microwave irradiation time. It was observed that the rate of nucleation and crystal growth was influenced by the tuning parameters. In that way, the average crystallite size of single phase cobalt ferrite nanoparticles was controlled within 9-11 and 10-12 nm with an increase of base concentration and microwave irradiation time, respectively. A narrow size distribution of nearly spherical nanoparticles was achieved through the present procedure. A soft ferromagnetism at room temperature with the considerable saturation magnetization of 58.4 emu g-1 and coercivity of 262.7 Oe was obtained for the cobalt ferrites synthesized with 2.25 M of NaOH solution for 3 and 7 min of microwave irradiation time, respectively. The cobalt ferrite nanoparticles synthesized with a shorter reaction time of 3-7 min was found to be advantageous over other methods that involved conventional heating procedures and longer reaction time to achieve the better magnetic properties for the technological applications. © 2018 IOP Publishing Ltd.
LanguageEnglish
JournalMaterials Research Express
Volume5
Issue number2
DOIs
Publication statusPublished - 2018

Fingerprint

Coprecipitation
Cobalt
Magnetic properties
Microwaves
Microwave irradiation
Ferrite
Nanoparticles
Ferrites
Ferromagnetism
Saturation magnetization
Crystallite size
Crystallization
Coercive force
Crystal growth
Particle size analysis
Nucleation
Tuning
cobalt ferrite
Heating
Temperature

Keywords

  • co-precipitation
  • cobalt ferrite nanoparticles
  • magnetic properties
  • microwave-assisted coprecipitation
  • particle size
  • uniform morphology

Cite this

@article{3e8ead3caa004f16a9fd68451f1b7634,
title = "Controlling the size and magnetic properties of nano CoFe2O4 by microwave assisted co-precipitation method",
abstract = "In this report, cobalt ferrite nanoparticles synthesized using microwave assisted co-precipitation method was reported. Efforts have been made to control the particles size, distribution, morphology and magnetic properties of cobalt ferrite nanoparticles by varying the concentration of NaOH solution and microwave irradiation time. It was observed that the rate of nucleation and crystal growth was influenced by the tuning parameters. In that way, the average crystallite size of single phase cobalt ferrite nanoparticles was controlled within 9-11 and 10-12 nm with an increase of base concentration and microwave irradiation time, respectively. A narrow size distribution of nearly spherical nanoparticles was achieved through the present procedure. A soft ferromagnetism at room temperature with the considerable saturation magnetization of 58.4 emu g-1 and coercivity of 262.7 Oe was obtained for the cobalt ferrites synthesized with 2.25 M of NaOH solution for 3 and 7 min of microwave irradiation time, respectively. The cobalt ferrite nanoparticles synthesized with a shorter reaction time of 3-7 min was found to be advantageous over other methods that involved conventional heating procedures and longer reaction time to achieve the better magnetic properties for the technological applications. {\circledC} 2018 IOP Publishing Ltd.",
keywords = "co-precipitation, cobalt ferrite nanoparticles, magnetic properties, microwave-assisted coprecipitation, particle size, uniform morphology",
author = "T. Prabhakaran and R.V. Mangalaraja and J.C. Denardin and {Casagrande Denardin}, Juliano",
note = "Export Date: 8 June 2018 Correspondence Address: Prabhakaran, T.; Advanced Ceramics and Nanotechnology Laboratory, Department of Materials Engineering, Faculty of Engineering, University of ConcepcionChile; email: prabhakarant85@gmail.com References: Comes, R., Liu, H., Khokhlov, M., Kasica, R., Lu, J., Wolf, S.A., Directed self-assembly of epitaxial CoFe2O4-BiFeO3 multiferroic nanocomposites (2012) Nano Lett., 12, pp. 2367-2373; Li, Y., Magnetoelectric quasi-(0-3) nanocomposite heterostructures (2015) Nat. Commun., 6, p. 6680; Bensebaa, F., Zavaliche, F., L'Ecuyer, P., Cochrane, R.W., Veres, T., Microwave synthesis and characterization of Co-ferrite nanoparticles (2004) J. Colloid Interface Sci., 277, pp. 104-110; Prabhakaran, T., Mangalaraja, R.V., Denardin, J.C., The structural, magnetic and magnetic entropy changes on CoFe2O4/CoFe2 composites for magnetic refrigeration application (2017) J. Magn. Magn. Mater., 444, pp. 297-306; Roca, A.G., Costo, R., Rebolledo, A.F., Veintemillas-Verdaguer, S., Tartaj, P., Gonz{\'a}lez-Carre{\~n}o, T., Morales, M.P., Serna, C.J., Progress in the preparation of magnetic nanoparticles for applications in biomedicine (2009) J. Phys. D: Appl. Phys., 42 (22); Poddar, P., Gass, J., Rebar, D.J., Srinath, S., Srikanth, H., Morrison, S.A., Carpenter, E.E., Magnetocaloric effect in ferrite nanoparticles (2006) J. Magn. Magn. Mater., 307, pp. 227-231; Cullity, B.D., Graham, C.D., (2009) Introduction to Magnetic Materials, , (Hoboken, New Jersey: Wiley); Chinnasamy, C.N., Jeyadevan, B., Perales-Perez, O., Shinoda, K., Tohji, K., Kasuya, A., Growth dominant Co-precipitation process to achieve high coercivity at room temperature in CoFe2O4 nanoparticles (2002) IEEE Trans. Magn., 38, pp. 2640-2642; Prabhakaran, T., Mangalaraja, R.V., Denardin, J.C., Jim{\'e}nez, J.A., The effect of reaction temperature on the structural and magnetic properties of nano CoFe2O4 (2017) Ceram. Int., 43, pp. 5599-5606; Moumen, N., Pileni, M.P., Control of the size of cobalt ferrite magnetic fluid (1996) J. Phys. Chem., 100, pp. 1867-1873; Kolhatkar, A.G., Jamison, A.C., Litvinov, D., Willson, R.C., Randall Lee, T., Tuning the magnetic properties of nanoparticles (2013) Int. J. Mol. Sci., 14, pp. 15977-16009; Safi, R., Ghasemi, A., Razavi, R.S., Tavousi, M., The role of pH on the particle size and magnetic consequence of cobalt ferrite (2015) J. Magn. Magn. Mater., 396, pp. 288-294; Yake, H.L., Determination of the cation site-occupation parameter in a cobalt ferrite from synchrotron-radiation diffraction data (1980) J. Phys. Chem. Solids, 41, pp. 1097-1104; Prabhakaran, T., Mangalaraja, R.V., Denardin, J.C., Jim{\'e}nez, J.A., The effect of calcination temperature on the structural and magnetic properties of co-precipitated CoFe2O4 nanoparticles (2017) J. Alloys Compd., 716, pp. 171-183; Gu, Z., Xiang, X., Fan, G., Li, F., Facile synthesis and characterization of cobalt ferrite nanocrystals via a simple reduction-oxidation route (2008) J. Phys. Chem., 112, pp. 18459-18466; Peng, J., Hojamberdiev, M., Xu, Y., Cao, B., Wang, J., Wu, H., Hydrothermal synthesis and magnetic properties of gadolinium-doped CoFe2O4 nanoparticles (2011) J. Magn. Magn. Mater., 323, pp. 133-138; Gyergyek, S., Makovec, D., Kodre, A., Arčon, I., Jagodič, M., Drofenik, M., Influence of synthesis method on structural and magnetic properties of cobalt ferrite nanoparticles (2010) J. Nanopart. Res., 12, pp. 1263-1273; Prabhakaran, T., Hemalatha, J., Combustion synthesis and characterization of cobalt ferrite nanoparticles (2016) Ceram. Int., 42, pp. 14113-14120; Rajath Varma, P.C., Sekhar Manna, R., Banerjee, D., Raama Varma, M., Suresh, K.G., Nigam, A.K., Magnetic properties of CoFe2O4 synthesized by solid state, citrate precursor and polymerized complex methods: A comparative study (2008) J. Alloys Compd., 453, pp. 298-303; Bilecka, I., Elser, P., Niederberger, M., Kinetic and thermodynamic aspects in the microwave-assisted synthesis of ZnO nanoparticles in benzyl alcohol (2009) ACS Nano, 3, pp. 467-477; Bilecka, I., Niederberger, M., Microwave chemistry for inorganic nanomaterials synthesis (2010) Nanoscale, 2, pp. 1358-1374; Gerbec, J.A., Magana, D., Washington, A., Strouse, G.F., Microwave-enhanced reaction rates for nanoparticle synthesis (2005) J. Am. Chem. Soc., 127, pp. 15791-15800; Tompsett, G.A., Conner, W.C., Yngvesson, K.S., Microwave synthesis of nanoporous materials (2006) ChemPhysChem, 7, pp. 296-319; Komarneni, S., Nanophase materials by hydrothermal, microwave-hydrothermal and microwave-solvothermal methods (2003) Curr. Sci., 85, pp. 1730-1734. , http://www.jstor.org/stable/24109979; Komarneni, S., D'Arrigo, M.C., Leonelli, C., Pellacani, G.C., Katsuki, H., Microwave-hydrothermal synthesis of nanophase ferrites (1998) J. Am. Ceram. Soc., 81, pp. 3041-3043; Parada, C., Mor{\'a}n, E., Microwave-assisted synthesis and magnetic study of nanosized Ni/NiO materials (2006) Chem. Mater., 18, pp. 2719-2725; Motshekga, S.C., Pillai, S.K., Ray, S.S., Jalama, K., Krause, R.W.M., Recent trends in the microwave-assisted synthesis of metal oxide nanoparticles supported on carbon nanotubes and their applications (2012) J. Nanomater., 2012. , 2012; Erten-Ela, S., Cogal, S., Icli, S., Conventional and microwave-assisted synthesis of ZnO nanorods and effects of PEG400 as a surfactant on the morphology (2009) Inorg. Chim. Acta, 362, pp. 1855-1858; Al-Gaashani, R., Radiman, S., Tabet, N., Daud, A.R., Effect of microwave power on the morphology and optical property of zinc oxide nano-structures prepared via a microwave-assisted aqueous solution method (2011) Mater. Chem. Phys., 125, pp. 846-852; Bilecka, I., Djerdj, I., Niederberger, M., One-minute synthesis of crystalline binary and ternary metal oxide nanoparticles (2008) Chem. Commun., 1, pp. 886-888; Chen, Y.C., Lo, S.L., Effects of operational conditions of microwave-assisted synthesis on morphology and photocatalytic capability of zinc oxide (2011) Chem. Eng. J., 170, pp. 411-418; Kazemzadeh, S.M., Hassanjani-Roshan, A., Vaezi, M.R., Shokuhfar, A., The effect of microwave irradiation time on appearance properties of silver nanoparticles (2011) Trans. Indian Inst. Met., 64, pp. 261-264; Zhu, Y.J., Chen, F., Microwave-assisted preparation of inorganic nanostructures in liquid Phase (2014) Chem. Rev., 114, pp. 6462-6555; Brahma, S., Liu, C.P., Shivashankar, S.A., Microwave irradiation assisted, one pot synthesis of simple and complex metal oxide nanoparticles: A general approach (2017) J. Phys. D: Appl. Phys., 50 (40); Moitra, D., Hazra, S., Ghosh, B.K., Jani, R.K., Patra, M.K., Vadera, S.R., Ghosh, N.N., A facile low temperature method for the synthesis of CoFe2O4 nanoparticles possessing excellent microwave absorption properties (2015) RSC Adv., 5, pp. 51130-51134; Tathod, A.P., Gazit, O.M., Fundamental insights into the nucleation and growth of Mg-Al layered double hydroxides nanoparticles at low temperature (2016) Cryst. Growth Des., 16, pp. 6709-6713; Faraji, M., Yamini, Y., Rezaee, M., Magnetic nanoparticles: Synthesis, stabilization, functionalization, characterization, and applications (2010) J. Iran. Chem. Soc., 7, pp. 1-37; Tartaj, P., Morales, M.D.P., Verdaguer, S.V., Carre{\~n}o, T.G., Serna, C.J., The preparation of magnetic nanoparticles for applications in biomedicine (2003) J. Phys. D: Appl. Phys., 36 (13), pp. R182-R197; Lamer, V.K., Dinega, R.H., Theory, production and mechanism of formation of monodispersed hydrosols (1950) J. Am. Chem. Soc., 72, pp. 4847-4854; Kung, H.H., (1989) Transition Metal Oxides: Surface Chemistry and Catalysis, p. 133. , (Amsterdam: Elsevier) p Technology amp; Engineering; Dong, H., Koenig, G.M., Jr., Compositional control of precipitate precursors for lithium-ion battery active materials: Role of solution equilibrium and precipitation rate (2017) J. Mater. Chem., 5, p. 13785; Bertotti, G., (1998) Hysteresis in Magnetism, p. 316. , (San Diego: Academic); Wang, Z.L., Liu, Y., Zhang, Z., (2003) Handbook of Nanophase and Nanostructured Materials. Volume III: Materials Systems and Applications I, pp. 252-259. , (USA: Kluwer Academic/Plenum Publishers); Berkowitz, A.E., Schuele, W.J., Magnetic properties of some ferrite micropowders (1959) J. Appl. Phys., 30, p. S134; Nlebedim, I.C., Ranvah, N., Williams, P.I., Melikhov, Y., Snyder, J.E., Moses, A.J., Jiles, D.C., Effect of heat treatment on the magnetic and magnetoelastic properties of cobalt ferrite (2010) J. Magn. Magn. Mater., 322, pp. 1929-1933; Houshiar, M., Zebhi, F., Razi, Z.J., Alidoust, A., Askari, Z., Synthesis of cobalt ferrite (CoFe2O4) nanoparticles using combustion, co-precipitation, and precipitation methods: A comparison study of size, structural, and magnetic properties (2014) J. Magn. Magn. Mater., 371, pp. 43-48; Abbas, Y.M., Mansour, S.A., Ibrahim, M.H., Ali, S.E., Microstructure characterization and cation distribution of nanocrystalline cobalt ferrite (2011) J. Magn. Magn. Mater., 323, pp. 2748-2756; Cui, L., Guo, P., Zhanga, G., Li, Q., Wang, R., Zhou, M., Ran, L., Zhao, X.S., Facile synthesis of cobalt ferrite submicrospheres with tunable magnetic and electrocatalytic properties (2013) Colloids Surf., 423, pp. 170-177",
year = "2018",
doi = "10.1088/2053-1591/aaa73f",
language = "English",
volume = "5",
journal = "Materials Research Express",
issn = "2053-1591",
publisher = "Institute of Physics Publishing",
number = "2",

}

TY - JOUR

T1 - Controlling the size and magnetic properties of nano CoFe2O4 by microwave assisted co-precipitation method

AU - Prabhakaran, T.

AU - Mangalaraja, R.V.

AU - Denardin, J.C.

AU - Casagrande Denardin, Juliano

N1 - Export Date: 8 June 2018 Correspondence Address: Prabhakaran, T.; Advanced Ceramics and Nanotechnology Laboratory, Department of Materials Engineering, Faculty of Engineering, University of ConcepcionChile; email: prabhakarant85@gmail.com References: Comes, R., Liu, H., Khokhlov, M., Kasica, R., Lu, J., Wolf, S.A., Directed self-assembly of epitaxial CoFe2O4-BiFeO3 multiferroic nanocomposites (2012) Nano Lett., 12, pp. 2367-2373; Li, Y., Magnetoelectric quasi-(0-3) nanocomposite heterostructures (2015) Nat. Commun., 6, p. 6680; Bensebaa, F., Zavaliche, F., L'Ecuyer, P., Cochrane, R.W., Veres, T., Microwave synthesis and characterization of Co-ferrite nanoparticles (2004) J. Colloid Interface Sci., 277, pp. 104-110; Prabhakaran, T., Mangalaraja, R.V., Denardin, J.C., The structural, magnetic and magnetic entropy changes on CoFe2O4/CoFe2 composites for magnetic refrigeration application (2017) J. Magn. Magn. Mater., 444, pp. 297-306; Roca, A.G., Costo, R., Rebolledo, A.F., Veintemillas-Verdaguer, S., Tartaj, P., González-Carreño, T., Morales, M.P., Serna, C.J., Progress in the preparation of magnetic nanoparticles for applications in biomedicine (2009) J. Phys. D: Appl. Phys., 42 (22); Poddar, P., Gass, J., Rebar, D.J., Srinath, S., Srikanth, H., Morrison, S.A., Carpenter, E.E., Magnetocaloric effect in ferrite nanoparticles (2006) J. Magn. Magn. Mater., 307, pp. 227-231; Cullity, B.D., Graham, C.D., (2009) Introduction to Magnetic Materials, , (Hoboken, New Jersey: Wiley); Chinnasamy, C.N., Jeyadevan, B., Perales-Perez, O., Shinoda, K., Tohji, K., Kasuya, A., Growth dominant Co-precipitation process to achieve high coercivity at room temperature in CoFe2O4 nanoparticles (2002) IEEE Trans. Magn., 38, pp. 2640-2642; Prabhakaran, T., Mangalaraja, R.V., Denardin, J.C., Jiménez, J.A., The effect of reaction temperature on the structural and magnetic properties of nano CoFe2O4 (2017) Ceram. Int., 43, pp. 5599-5606; Moumen, N., Pileni, M.P., Control of the size of cobalt ferrite magnetic fluid (1996) J. Phys. Chem., 100, pp. 1867-1873; Kolhatkar, A.G., Jamison, A.C., Litvinov, D., Willson, R.C., Randall Lee, T., Tuning the magnetic properties of nanoparticles (2013) Int. J. Mol. Sci., 14, pp. 15977-16009; Safi, R., Ghasemi, A., Razavi, R.S., Tavousi, M., The role of pH on the particle size and magnetic consequence of cobalt ferrite (2015) J. Magn. Magn. Mater., 396, pp. 288-294; Yake, H.L., Determination of the cation site-occupation parameter in a cobalt ferrite from synchrotron-radiation diffraction data (1980) J. Phys. Chem. Solids, 41, pp. 1097-1104; Prabhakaran, T., Mangalaraja, R.V., Denardin, J.C., Jiménez, J.A., The effect of calcination temperature on the structural and magnetic properties of co-precipitated CoFe2O4 nanoparticles (2017) J. Alloys Compd., 716, pp. 171-183; Gu, Z., Xiang, X., Fan, G., Li, F., Facile synthesis and characterization of cobalt ferrite nanocrystals via a simple reduction-oxidation route (2008) J. Phys. Chem., 112, pp. 18459-18466; Peng, J., Hojamberdiev, M., Xu, Y., Cao, B., Wang, J., Wu, H., Hydrothermal synthesis and magnetic properties of gadolinium-doped CoFe2O4 nanoparticles (2011) J. Magn. Magn. Mater., 323, pp. 133-138; Gyergyek, S., Makovec, D., Kodre, A., Arčon, I., Jagodič, M., Drofenik, M., Influence of synthesis method on structural and magnetic properties of cobalt ferrite nanoparticles (2010) J. Nanopart. Res., 12, pp. 1263-1273; Prabhakaran, T., Hemalatha, J., Combustion synthesis and characterization of cobalt ferrite nanoparticles (2016) Ceram. Int., 42, pp. 14113-14120; Rajath Varma, P.C., Sekhar Manna, R., Banerjee, D., Raama Varma, M., Suresh, K.G., Nigam, A.K., Magnetic properties of CoFe2O4 synthesized by solid state, citrate precursor and polymerized complex methods: A comparative study (2008) J. Alloys Compd., 453, pp. 298-303; Bilecka, I., Elser, P., Niederberger, M., Kinetic and thermodynamic aspects in the microwave-assisted synthesis of ZnO nanoparticles in benzyl alcohol (2009) ACS Nano, 3, pp. 467-477; Bilecka, I., Niederberger, M., Microwave chemistry for inorganic nanomaterials synthesis (2010) Nanoscale, 2, pp. 1358-1374; Gerbec, J.A., Magana, D., Washington, A., Strouse, G.F., Microwave-enhanced reaction rates for nanoparticle synthesis (2005) J. Am. Chem. Soc., 127, pp. 15791-15800; Tompsett, G.A., Conner, W.C., Yngvesson, K.S., Microwave synthesis of nanoporous materials (2006) ChemPhysChem, 7, pp. 296-319; Komarneni, S., Nanophase materials by hydrothermal, microwave-hydrothermal and microwave-solvothermal methods (2003) Curr. Sci., 85, pp. 1730-1734. , http://www.jstor.org/stable/24109979; Komarneni, S., D'Arrigo, M.C., Leonelli, C., Pellacani, G.C., Katsuki, H., Microwave-hydrothermal synthesis of nanophase ferrites (1998) J. Am. Ceram. Soc., 81, pp. 3041-3043; Parada, C., Morán, E., Microwave-assisted synthesis and magnetic study of nanosized Ni/NiO materials (2006) Chem. Mater., 18, pp. 2719-2725; Motshekga, S.C., Pillai, S.K., Ray, S.S., Jalama, K., Krause, R.W.M., Recent trends in the microwave-assisted synthesis of metal oxide nanoparticles supported on carbon nanotubes and their applications (2012) J. Nanomater., 2012. , 2012; Erten-Ela, S., Cogal, S., Icli, S., Conventional and microwave-assisted synthesis of ZnO nanorods and effects of PEG400 as a surfactant on the morphology (2009) Inorg. Chim. Acta, 362, pp. 1855-1858; Al-Gaashani, R., Radiman, S., Tabet, N., Daud, A.R., Effect of microwave power on the morphology and optical property of zinc oxide nano-structures prepared via a microwave-assisted aqueous solution method (2011) Mater. Chem. Phys., 125, pp. 846-852; Bilecka, I., Djerdj, I., Niederberger, M., One-minute synthesis of crystalline binary and ternary metal oxide nanoparticles (2008) Chem. Commun., 1, pp. 886-888; Chen, Y.C., Lo, S.L., Effects of operational conditions of microwave-assisted synthesis on morphology and photocatalytic capability of zinc oxide (2011) Chem. Eng. J., 170, pp. 411-418; Kazemzadeh, S.M., Hassanjani-Roshan, A., Vaezi, M.R., Shokuhfar, A., The effect of microwave irradiation time on appearance properties of silver nanoparticles (2011) Trans. Indian Inst. Met., 64, pp. 261-264; Zhu, Y.J., Chen, F., Microwave-assisted preparation of inorganic nanostructures in liquid Phase (2014) Chem. Rev., 114, pp. 6462-6555; Brahma, S., Liu, C.P., Shivashankar, S.A., Microwave irradiation assisted, one pot synthesis of simple and complex metal oxide nanoparticles: A general approach (2017) J. Phys. D: Appl. Phys., 50 (40); Moitra, D., Hazra, S., Ghosh, B.K., Jani, R.K., Patra, M.K., Vadera, S.R., Ghosh, N.N., A facile low temperature method for the synthesis of CoFe2O4 nanoparticles possessing excellent microwave absorption properties (2015) RSC Adv., 5, pp. 51130-51134; Tathod, A.P., Gazit, O.M., Fundamental insights into the nucleation and growth of Mg-Al layered double hydroxides nanoparticles at low temperature (2016) Cryst. Growth Des., 16, pp. 6709-6713; Faraji, M., Yamini, Y., Rezaee, M., Magnetic nanoparticles: Synthesis, stabilization, functionalization, characterization, and applications (2010) J. Iran. Chem. Soc., 7, pp. 1-37; Tartaj, P., Morales, M.D.P., Verdaguer, S.V., Carreño, T.G., Serna, C.J., The preparation of magnetic nanoparticles for applications in biomedicine (2003) J. Phys. D: Appl. Phys., 36 (13), pp. R182-R197; Lamer, V.K., Dinega, R.H., Theory, production and mechanism of formation of monodispersed hydrosols (1950) J. Am. Chem. Soc., 72, pp. 4847-4854; Kung, H.H., (1989) Transition Metal Oxides: Surface Chemistry and Catalysis, p. 133. , (Amsterdam: Elsevier) p Technology amp; Engineering; Dong, H., Koenig, G.M., Jr., Compositional control of precipitate precursors for lithium-ion battery active materials: Role of solution equilibrium and precipitation rate (2017) J. Mater. Chem., 5, p. 13785; Bertotti, G., (1998) Hysteresis in Magnetism, p. 316. , (San Diego: Academic); Wang, Z.L., Liu, Y., Zhang, Z., (2003) Handbook of Nanophase and Nanostructured Materials. Volume III: Materials Systems and Applications I, pp. 252-259. , (USA: Kluwer Academic/Plenum Publishers); Berkowitz, A.E., Schuele, W.J., Magnetic properties of some ferrite micropowders (1959) J. Appl. Phys., 30, p. S134; Nlebedim, I.C., Ranvah, N., Williams, P.I., Melikhov, Y., Snyder, J.E., Moses, A.J., Jiles, D.C., Effect of heat treatment on the magnetic and magnetoelastic properties of cobalt ferrite (2010) J. Magn. Magn. Mater., 322, pp. 1929-1933; Houshiar, M., Zebhi, F., Razi, Z.J., Alidoust, A., Askari, Z., Synthesis of cobalt ferrite (CoFe2O4) nanoparticles using combustion, co-precipitation, and precipitation methods: A comparison study of size, structural, and magnetic properties (2014) J. Magn. Magn. Mater., 371, pp. 43-48; Abbas, Y.M., Mansour, S.A., Ibrahim, M.H., Ali, S.E., Microstructure characterization and cation distribution of nanocrystalline cobalt ferrite (2011) J. Magn. Magn. Mater., 323, pp. 2748-2756; Cui, L., Guo, P., Zhanga, G., Li, Q., Wang, R., Zhou, M., Ran, L., Zhao, X.S., Facile synthesis of cobalt ferrite submicrospheres with tunable magnetic and electrocatalytic properties (2013) Colloids Surf., 423, pp. 170-177

PY - 2018

Y1 - 2018

N2 - In this report, cobalt ferrite nanoparticles synthesized using microwave assisted co-precipitation method was reported. Efforts have been made to control the particles size, distribution, morphology and magnetic properties of cobalt ferrite nanoparticles by varying the concentration of NaOH solution and microwave irradiation time. It was observed that the rate of nucleation and crystal growth was influenced by the tuning parameters. In that way, the average crystallite size of single phase cobalt ferrite nanoparticles was controlled within 9-11 and 10-12 nm with an increase of base concentration and microwave irradiation time, respectively. A narrow size distribution of nearly spherical nanoparticles was achieved through the present procedure. A soft ferromagnetism at room temperature with the considerable saturation magnetization of 58.4 emu g-1 and coercivity of 262.7 Oe was obtained for the cobalt ferrites synthesized with 2.25 M of NaOH solution for 3 and 7 min of microwave irradiation time, respectively. The cobalt ferrite nanoparticles synthesized with a shorter reaction time of 3-7 min was found to be advantageous over other methods that involved conventional heating procedures and longer reaction time to achieve the better magnetic properties for the technological applications. © 2018 IOP Publishing Ltd.

AB - In this report, cobalt ferrite nanoparticles synthesized using microwave assisted co-precipitation method was reported. Efforts have been made to control the particles size, distribution, morphology and magnetic properties of cobalt ferrite nanoparticles by varying the concentration of NaOH solution and microwave irradiation time. It was observed that the rate of nucleation and crystal growth was influenced by the tuning parameters. In that way, the average crystallite size of single phase cobalt ferrite nanoparticles was controlled within 9-11 and 10-12 nm with an increase of base concentration and microwave irradiation time, respectively. A narrow size distribution of nearly spherical nanoparticles was achieved through the present procedure. A soft ferromagnetism at room temperature with the considerable saturation magnetization of 58.4 emu g-1 and coercivity of 262.7 Oe was obtained for the cobalt ferrites synthesized with 2.25 M of NaOH solution for 3 and 7 min of microwave irradiation time, respectively. The cobalt ferrite nanoparticles synthesized with a shorter reaction time of 3-7 min was found to be advantageous over other methods that involved conventional heating procedures and longer reaction time to achieve the better magnetic properties for the technological applications. © 2018 IOP Publishing Ltd.

KW - co-precipitation

KW - cobalt ferrite nanoparticles

KW - magnetic properties

KW - microwave-assisted coprecipitation

KW - particle size

KW - uniform morphology

U2 - 10.1088/2053-1591/aaa73f

DO - 10.1088/2053-1591/aaa73f

M3 - Article

VL - 5

JO - Materials Research Express

T2 - Materials Research Express

JF - Materials Research Express

SN - 2053-1591

IS - 2

ER -