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Synthesis of nanocrystalline Mg0.6Cd0.4Fe2O4 ferrite by glycine-nitrate auto-combustion method and investigation of its microstructure and magnetic properties
Affiliation:1. Key Lab of Advanced Transducers and Intelligent Control System, Ministry of Education, Taiyuan University of Technology, Taiyuan 030024, PR China;2. College of Physics and Optoelectronics, Taiyuan University of Technology, Taiyuan 030024, PR China;3. College of Physics and Electrical Engineering, Anyang Normal University, Anyang 455000, PR China;1. Research Unit of Valorization and Optimization of Exploitation of Resources, Faculty of Science and Technology of Sidi Bouzid, University Campus Agricultural City, University of Kairouan, 9100 Sidi Bouzid, Tunisia;2. Buraydah of Technical College at Al-Asyah, Al-Asyah – King Abdulaziz Road, PB: 304, Al-Asyah 51971, Saudi Arabia;3. Laboratory of Water, Membranes and Environment Biotechnology (EMBE), Technopole of Borj Cedria (CERTE), 2050 Hammam Lif, Tunisia;4. Qassim University, College of Science, Department of Chemistry, Buraydah Almolaydah, Buraydah, Saudi Arabia;5. Laboratory of Physical Chemistry of Materials, Department of Physics, Faculty of Sciences of Monastir, University of Monastir, 5019, Tunisia;6. College of Engineering-Prince Sattam Bin Abdulaziz University, 655, Al Kharj 11942, Saudi Arabia;1. Research Unit, Physics of Insulating and Semi-insulating Materials, Faculty of Sciences of Sfax, BP 1171, 3000 Sfax, Tunisia;2. Photovoltaic and Semi-conductor Materials Laboratory, ENIT, PB 37, Le Belvedere 1002, Tunis, Tunisia;1. Department of Biophysics, Institute for Research and Medical Consultations (IRMC), Imam Abdulrahman Bin Faisal University, P.O. Box 1982, 31441 Dammam, Saudi Arabia;2. Department of Physics, College of Science, Imam Abdulrahman Bin Faisal University, P.O. Box 1982, 31441 Dammam, Saudi Arabia;3. Institute of Inorganic Chemistry, RWTH Aachen University, D-52074 Aachen, Germany;4. Deanship of Preparatory Year, Building 450, Imam Abdulrahman Bin Faisal University, P.O. Box 1982, 31441 Dammam, Saudi Arabia;5. Department of Chemistry, Istanbul Medeniyet University, 34700 Istanbul, Uskudar, Turkey;6. School of Materials Science and Engineering, University of New South Wales, Kensington, Sydney, NSW 2052, Australia;7. Department of Nanomedicine Research, Institute for Research and Medical Consultations (IRMC), Imam Abdulrahman Bin Faisal University, P.O. Box 1982, 31441 Dammam, Saudi Arabia;1. Laboratoire de Physique des Matériaux, Faculté des Sciences de Sfax, Université de Sfax, B. P 1171, 3000, Sfax, Tunisia;2. Laboratoire de Physique des Matériaux et des Nanomatériaux Appliquée à l’Environnement, Faculté des Sciences de Gabès, Université de Gabès, Cité Erriadh, 6079, Gabès, Tunisia;3. Université Grenoble Alpes, CNRS, Grenoble INP, Institut Néel, 38000, Grenoble, France
Abstract:Nanocrystalline Mg0.6Cd0.4Fe2O4 ferrite powders were produced by the glycine-nitrate auto-combustion method for the first time. The influence of the different molar ratios of glycine-to-nitrate G.N?1) on the characteristics of the prepared powders was systematically investigated by X-ray diffraction (XRD), inductively coupled plasma optical emission spectroscopy (ICP-OES), differential scanning calorimetry (DSC), Fourier transform infrared spectroscopy (FTIR), field-emission scanning electron microscopy (FE-SEM) and vibrating sample magnetometry (VSM). Thermodynamic calculations revealed that the adiabatic flame temperature changes from 598.79 K to 1757.97 K by increasing the G.N?1 ratios from 0.30 to 0.85. The results confirmed that under fuel-lean combustion (G.N?1 = 0.30), Mg0.6Cd0.4Fe2O4 nanoparticles can be obtained at a significantly lower temperature and shorter synthesis time, compared to other preparation methods like standard ceramic and co-precipitation. The XRD and ICP results showed that the crystallite size of the powders changes in the range of 8–43 nm, and their Cd content notably decreases with increasing the G.N?1 values. The FE-SEM results proved that the porosity and size of the as-prepared ferrite nanoparticles drastically change with variations in the G.N?1 ratio. The evolution of phase, crystallite/particle size, and magnetic properties after annealing was discussed in detail. At the optimized annealing condition, the synthesized Mg0.6Cd0.4Fe2O4 ferrite offered a high saturation magnetization of 41.70 Am2 kg?1 and a coercivity of 1.92 kA m?1, indicating noticeably better soft magnetic properties compared to the same ferrite produced by the other wet chemical methods.
Keywords:Nanocrystalline  Glycine-nitrate auto-combustion  Magnetic properties
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