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Preparation and characterization of nanocrystalline CoFe2O4 deposited on SiO2: in situ sol–gel process

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Abstract

In situ base catalyst assisted sol–gel process is used for the synthesis of nanocrystalline CoFe2O4 deposition on SiO2 particles. The SiO2 particles were prepared using base catalyst assisted sol–gel process and the consecutive formation and deposition of nanocrystalline CoFe2O4 on SiO2 particles was monitored using Powder X ray Diffraction (XRD), Fourier Transform Infrared Spectroscopy (FTIR), Thermo Gravimetric And Differential Thermal Analysis (TG/DTA), Scanning Electron Microscopy and Energy Dispersive X ray Spectroscopy (SEM–EDS) and High Resolution Transmission Electron Microscopy (HRTEM). The crystallite size of CoFe2O4 is calculated using Scherrer’s formula and it is found to be 8 nm. The HRTEM images and selective area electron diffraction (SAED) results confirmed the formation of nanocrystalline CoFe2O4 particles deposited over SiO2 spheres.

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Acknowledgments

NS is gratefully acknowledged CSIR, DRDO, AICTE and DST, Govt. of India, for receiving the financial support in the form of major research projects. IP acknowledge CSIR, Govt. of India for receiving SRF fellowship for doing Ph.D. Authors also acknowledge CIF Pondicherry University for using SEM and FTIR facilities. The authors are grateful for the financial supports from the Natural Sciences and Engineering Research Council (NSERC), Canada for the Discovery grant individual to MM.

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Authors and Affiliations

  1. Department of Physics, Pondicherry University, Puducherry, 605014, India

    I. Prakash, N. Nallamuthu, P. Muralidharan & N. Satyanarayana

  2. R & D, REC, Amara Raja Batteries Ltd, Tirupati, 517520, AP, India

    M. Venkateswarlu

  3. School of Engineering, University of Guelph, Guelph, ON, N1G2W1, Canada

    Manjusri Misra & Amar Mohanty

  4. Bioproducts Discovery & Development Center, Department of Plant Agriculture, University of Guelph, Guelph, ON, N1G 2W1, Canada

    Manjusri Misra, Amar Mohanty & N. Satyanarayana

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  1. I. Prakash
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  2. N. Nallamuthu
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  3. P. Muralidharan
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  4. M. Venkateswarlu
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Correspondence to Manjusri Misra or N. Satyanarayana.

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Prakash, I., Nallamuthu, N., Muralidharan, P. et al. Preparation and characterization of nanocrystalline CoFe2O4 deposited on SiO2: in situ sol–gel process. J Sol-Gel Sci Technol 58, 24–32 (2011). https://doi.org/10.1007/s10971-010-2350-2

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  • DOI: https://doi.org/10.1007/s10971-010-2350-2

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