Structural,morphological and magnetic properties of nano-crystalline zinc substituted cobalt ferrite system |
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| Affiliation: | 1. School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, PR China;2. Guangxi Colleges and Universities Key Laboratory of Applied Chemistry Technology and Resource Development, Nanning 530004, PR China;3. Guangxi Zhuang Autonomous Region Metallurgical Products Quality Supervision and Test Station, Nanning 530023, PR China;1. Department of Chemistry, Sahyadri Science College, Shimoga 577203, Karnataka, India;2. Department of Studies and Research in Industrial Chemistry, School of Chemical Sciences, Kuvempu University, Shankaraghatta 577451, Karnataka, India;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. National University of Science and Technology MISiS, 119049, Moscow, 4, Leninsky Prospekt, Russia;3. SSPA “Scientific and Practical Materials Research Centre of NAS of Belarus”, 220072, Minsk, 19, P. Brovki str., Belarus;4. South Ural State University, 454080, Chelyabinsk, 76, Lenina ave., Russia;5. Department of Nanomedicine Research, Institute for Research and Medical Consultations (IRMC), Imam Abdulrahman Bin Faisal University, P.O. Box 1982, 31441 Dammam, Saudi Arabia;6. Department of Physics, Hitit University, 19030, Çevre Yolu Bulvarı-Çorum, Turkey;1. Department of Chemistry, Panjab University, Chandigarh 160014, India;2. ICON Analytical Equipment (P) Ltd., Mumbai 400018, India;3. Institute Instrumentation Centre, Indian Institute of Technology–Roorkee, India;1. Materials Research Centre, Brno University of Technology, Purkyňova 464/118, 61200 Brno, Czech Republic;2. Institute of Inorganic Chemistry, Slovak Academy of Sciences, Dúbravská cesta 9, SK-845 36 Bratislava, Slovak Republic;3. Institute of Measurement Science, Slovak Academy of Sciences, Dúbravská cesta 9, SK-841 04 Bratislava, Slovak Republic |
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| Abstract: | Nano-crystalline zinc-substituted cobalt ferrite powders, Co1−xZnxFe2O4 (x = 0, 0.25, 0.5, 0.75 and 1), have been synthesized by the combustion route. The structural, morphological and magnetic properties of the products were determined and characterized in detail by X-ray diffraction (XRD), scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX) and vibrating sample magnetometer (VSM). X-ray analysis showed that the samples were cubic spinel. The increase in zinc concentration resulted in an increase in the lattice constant, unit cell volume, X-ray density, ionic radii, the distance between the magnetic ions and bond lengths on tetrahedral sites and octahedral sites of cubic spinel structure. Opposite behavior was observed for the average crystallite size of the as synthesized solids. The variation of saturation magnetization (Ms) value of the samples was studied. The maximum saturation magnetization value of the Coo.25Zn0.75Fe2O4 sample reached 76.87 emu/g. The high saturation magnetization of these samples suggests that this method is suitable for preparing high-quality nano-crystalline magnetic ferrites for practical applications. |
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