1. bookVolume 37 (2019): Issue 1 (March 2019)
Journal Details
License
Format
Journal
eISSN
2083-134X
First Published
16 Apr 2011
Publication timeframe
4 times per year
Languages
English
Open Access

Structural and magnetic studies on Co-Zn nanoferrite synthesized via sol-gel and combustion methods

Published Online: 06 Mar 2019
Volume & Issue: Volume 37 (2019) - Issue 1 (March 2019)
Page range: 39 - 54
Received: 26 May 2017
Accepted: 17 May 2018
Journal Details
License
Format
Journal
eISSN
2083-134X
First Published
16 Apr 2011
Publication timeframe
4 times per year
Languages
English
Abstract

Co–Zn nanocrystalline ferrites with chemical composition Co0:5Zn0:5Fe2O4 were synthesized by sol-gel and combustion methods. The sol-gel method was carried out in two ways, i.e. based on chelating agents PVA and PEG of high and low molecular weights. In auto-combustion method, the ratio of citric acid to metal nitrate was taken as 1:1, while in sol-gel method the chelating agents were taken based on oxygen balance. All the three samples were studied by thermogravimetric and differential thermal analysis for the identification of phase formation and ferritization temperature. The synthesized samples were characterized by powder X-ray diffraction and FT-IR spectroscopy without any thermal treatment. The measured lattice constants and observed characteristic IR absorption bands of the three samples are in good agreement with the reported values showing the formation of a cubic spinel structure. The crystallite sizes of all samples were determined using high intensity peaks and W-H plot. Size-Strain Plot method was also implemented since two of the samples showed low crystallite sizes. The least crystallite size (5.5 nm) was observed for the sample CZVP while the highest (23.8 nm) was observed for the sample CZCA. Cation distribution was proposed based on calculated and observed intensity ratios of selected planes from X ray diffraction data. All structural parameters were presented using experimental lattice constant and oxygen positional parameter, and they correlated with FT-IR results. Magnetic measurements were carried out using vibrating sample magnetometer at room temperature to obtain the characteristic parameters such as saturation magnetization, coercivity, remanence, squareness ratio and Bohr magnetons. Among all, the sample synthesized via citric acid autocombustion method displayed a remarkably higher magnetization of 53 emu/g and the remaining two samples displayed low magnetization values owing to their smaller crystallite sizes.

Keywords

[1] Raghvendra Singh Y., Jaromir H., Miroslav H., Pavol S., Cigan A., Martin P., Eva B., Martin B., Františka F., Jiri M., Martin Z., Lukas K., Miroslava H., Vojtěch E., J. Magn. Magn. Mater., 378 (2015), 190.Search in Google Scholar

[2] Dzmitry K., Maria I., Vladimir P., Yulia F., Solid State Sci., 39 (2015), 69.10.1016/j.solidstatesciences.2014.11.013Search in Google Scholar

[3] Majid Niaz A., Rahman A., Sulong A.B., Muhammad A.K., J. Magn. Magn. Mater., 421 (2017), 260.Search in Google Scholar

[4] Manikandan V., Vanitha A., Ranjith Kumar E., Kavita S., J. Magn. Magn. Mater., 426 (2017), 11.10.1016/j.jmmm.2016.11.034Search in Google Scholar

[5] Tasawar J., Asghari M., Akhlaq A.M., J. Supercond. Nov. Magn., 24 (2011), 2137.10.1007/s10948-011-1168-7Open DOISearch in Google Scholar

[6] Andris S., Gundars M., Front. Mater. Sci., 6 (2012), 128.10.1007/s11706-012-0167-3Search in Google Scholar

[7] Kashinath C.P., Aruna S.T., Tanu M., Curr. Opin. Solid St. M., 6 (2002), 507.Search in Google Scholar

[8] Raut A.V., Barkule R.S., Shengule D.R., Jadhav K.M., J. Magn. Magn. Mater., 358 – 359 (2014), 87.10.1016/j.jmmm.2014.01.039Search in Google Scholar

[9] Deraz N.M., Alarifi A., J. Anal. Appl. Pyrol., 94 (2012), 41.10.1016/j.jaap.2011.10.004Search in Google Scholar

[10] Gozuak F., Koseoglu Y., Baykal A., Kavas H., J. Magn. Magn. Mater., 321 (2009), 2170.10.1016/j.jmmm.2009.01.008Search in Google Scholar

[11] Shivaji R.K., Sanjay S.K., Pramod N.J., Vashishtha M.G., Duryodhan P.W., Govind B.K., Sandip R.S., Sambhaji R.B., Mater. Lett., 84 (2012), 169.Search in Google Scholar

[12] Sonal S., Sharma R., Namgyal T., Jauhar S., Bhukal S., Kaur J., Ceram. Int., 38 (2012), 2773.Search in Google Scholar

[13] Bhukal S., Mor S., Bansal S., Singh J., Singhal S., J. Mol. Struct., 1071 (2014), 95.10.1016/j.molstruc.2014.04.073Search in Google Scholar

[14] Danks A.E., Hall S.R., Mater. Horiz., 3 (2016), 91.10.1039/C5MH00260ESearch in Google Scholar

[15] Seongok Han, Kim C., Kwon D., Polymer, 38 (1997), 317.10.1016/S0032-3861(97)88175-XSearch in Google Scholar

[16] Vara Prasad B.B.V.S., Mod. Phys. Lett. B, 28 (2014), 1450155.10.1142/S0217984914501553Search in Google Scholar

[17] Lakhani V.K, Pathak T.K., Vasoya N.H., Modi K.B., Solid State Sci., 13 (2011), 539.10.1016/j.solidstatesciences.2010.12.023Open DOISearch in Google Scholar

[18] Maniammal K., Madhu G., Bijua V., Physica E, 85 (2017), 214.10.1016/j.physe.2016.08.035Search in Google Scholar

[19] Buerger M.J., Crystal Structure Analysis,Wiley, New York, 1960.Search in Google Scholar

[20] Shannon R.D., Acta Crystallogr. A, 32 (1976), 751.10.1107/S0567739476001551Open DOISearch in Google Scholar

[21] Vara Prasad B.B.V.S., Rajesh Babu B., Sivaram Prasad M., Mater. Sci.-Poland, 33 (2015), 806.10.1515/msp-2015-0111Search in Google Scholar

[22] Mohammed K.A., Al-Rawas A.D., Gismelseed A.M., Sellai A., Physica B, 407 (2012), 795.10.1016/j.physb.2011.12.097Search in Google Scholar

[23] Josyulu O.S., Sobhanadri J, Phys. Status Solidi A, 65 (1981), 479.10.1002/pssa.2210650209Open DOISearch in Google Scholar

[24] Reddy P. V., Salagram M., Phys. Status Solidi A, 100 (1987), 639.10.1002/pssa.2211000230Open DOISearch in Google Scholar

[25] Prasad M. S. R., Prasad B. B.V.S.V., Rajesh B., Rao K. H., Ramesh K.V., J. Magn. Magn. Mater., 323 (2011), 2115.10.1016/j.jmmm.2011.02.029Search in Google Scholar

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