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Studies on morphological and magnetic properties of Co1−xCuxFe2O4 nanoparticles synthesized via thermal decomposition approach

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Abstract

Co1−xCuxFe2O4 (x = 0.0, 0.10, 0.20 and 0.30) nanoparticles with interesting morphologies and magnetic properties were synthesized via thermal decomposition of Cu2+-substituted Co–Fe glycolates. The Cu2+-substituted Co–Fe glycolates were prepared first via a glycolate route which were then calcined at 500 °C to obtain Cu2+-substituted cobalt ferrite nanoparticles. The Cu2+-substituted Co–Fe glycolates and the Cu2+-substituted CoFe2O4 nanoparticles were characterized by various characterization techniques such as XRD, TGA, FT-IR, CHNS, FE-SEM, EDX, TEM, DRS and BET. The morphology of Cu2+-substituted cobalt ferrite nanoparticles could be tailored (hexagonal particles, hexagonal plates and near micro-spherical particles) by varying the concentration of Cu2+ used during the synthesis. Magnetic parameters such as saturation magnetization, coercivity and remanence of the Co1−xCuxFe2O4 nanoparticles were studied at 300 K and 15 K and the observed results have been explained on the basis of concentration of Cu2+, cationic distribution, size and morphology of the nanoparticles.

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Acknowledgements

This work was supported by Council of Scientific and Industrial Research (CSIR), Government of India (project number 01(2941)/18/EMR-II). Dimpal Tomar thanks the CSIR for the award of fellowship (JRF/SRF). Thanks are due to Institute Instrumentation Centre, IIT Roorkee for providing different instrumental facilities. The authors are also thankful to the Department of Metallurgical and Materials Engineering, IIT Roorkee for providing the HRTEM facility.

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Tomar, D., Jeevanandam, P. Studies on morphological and magnetic properties of Co1−xCuxFe2O4 nanoparticles synthesized via thermal decomposition approach. J Mater Sci: Mater Electron 33, 3514–3534 (2022). https://doi.org/10.1007/s10854-021-07543-5

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