Synthesis of Dy doped Co-Zn ferrite by sol-gel auto combustion method and its characterization

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• 作者：Shivaji R. Kulal ; Sanjay S. Khetre ; Pramod N. Jagdale ; Vashishtha M. Gurame ; Duryodhan P. Waghmode ; Govind B. Kolekar ; S ; ip R. Sabale ; Sambhaji R. Bamane
• 关键词：Nanocrystalline ; Sol&ndash ; gel ; FTIR ; SEM
• 刊名：Materials Letters
• 出版年：2012
• 出版时间：1 October, 2012
• 年：2012
• 卷：84
• 期：Complete
• 页码：169-172
• 全文大小：450 K

文摘

Dysprosium doped Co-Zn ferrites were synthesized by sol-gel auto combustion method. These synthesized compounds were characterized by using XRD, SEM, FTIR, EDS, TGA-DTA and TEM. TGA weight loss in the region of 100-200 ¡ãC and this loss is due to autocatalytic oxidation reduction reactions of nitrates with glycine. The composition Co_0.5Zn_0.5Fe_2?xDy_xO₄ (x=0.075) shows fibrous reticulated mesh like morphology. The average grain size increases with increasing the Dy content in the Co-Zn ferrite. The XRD study of Dy doped Co-Zn ferrite shows in Cubic spinel phase. Particle size obtained from TEM analysis was found to be 30-40 nm. The FTIR spectra showed the characteristic of two strong absorption bands at 560 cmp>?1p> corresponds to intrinsic stretching vibrations of the metal at the tetrahedral site and lowest band is observed at 455 cmp>?1p> corresponds to octahedral site.