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Title: Synthesis and characterization of nanocrystalline Zn ferrites substituted with Ni

Abstract

Highlights: {yields} Ni{sub x}Zn{sub 1-x}Fe{sub 2}O{sub 4} are synthesized by sol-gel auto-combustion method using tartaric acid. {yields} XRD patterns reveal spinel structure and the crystallite size is max. 40 nm. {yields} SEM images for Ni{sub 0.6}Zn{sub 0.4}Fe{sub 2}O{sub 4} confirm the nano-scale crystallite size. {yields} The highest value of samples porosity belongs to Ni{sub 0.6}Zn{sub 0.4}Fe{sub 2}O{sub 4}. {yields} The maximum value of the magnetization is 63 emu/g for Ni{sub 0.8}Zn{sub 0.2}Fe{sub 2}O{sub 4}. -- Abstract: Nanocrystalline powders of nickel substituted zinc ferrite with general formula Ni{sub x}Zn{sub 1-x}Fe{sub 2}O{sub 4} (x = 0, 0.2, 0.4, 0.6, 0.8, 1) have been synthesized via sol-gel auto-combustion method using tartaric acid as combustion-complexing agent. Samples were sintered at 773 K and 973 K in static air atmosphere. The absence of the organic phase and the spinel formation were monitored by using Fourier transform infrared spectroscopy. The structure and crystallite size were analyzed from X-ray diffraction data revealing spinel mono-phase formation in the range of nanometric crystallite size confirmed also through scanning electron microscopy. Mean size of crystallites lay in the range 20-40 nm. The influence of nickel content on the microstructure was investigated considering the crystallite size, distance between adjacent crystal planes,more » lattice parameter and porosity. The variation of magnetic properties of the samples was studied by using vibrating samples magnetometer and discussed considering the proposed cation distribution, relative bond angles and canting angles. The highest maximum value of the magnetization (63 emu/g) was found for Ni{sub 0.8}Zn{sub 0.2}Fe{sub 2}O{sub 4}.« less

Authors:
;  [1];  [1]; ; ;  [2]
  1. Faculty of Chemistry, Alexandru Ioan Cuza University of Iasi, 11 Carol I Boulevard 700506 (Romania)
  2. Faculty of Physics, Alexandru Ioan Cuza University of Iasi, 11 Carol I Boulevard 700506 (Romania)
Publication Date:
OSTI Identifier:
22212227
Resource Type:
Journal Article
Journal Name:
Materials Research Bulletin
Additional Journal Information:
Journal Volume: 46; Journal Issue: 9; Other Information: Copyright (c) 2011 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0025-5408
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; 77 NANOSCIENCE AND NANOTECHNOLOGY; ABSORPTION SPECTROSCOPY; BOND ANGLE; CHELATING AGENTS; CRYSTALS; FERRITE; FERRITES; FOURIER TRANSFORM SPECTROMETERS; INFRARED SPECTRA; LATTICE PARAMETERS; MAGNETIC PROPERTIES; MAGNETIZATION; MICROSTRUCTURE; NANOSTRUCTURES; NICKEL; POROSITY; SCANNING ELECTRON MICROSCOPY; SOL-GEL PROCESS; SPINELS; SYNTHESIS; TARTARIC ACID; X-RAY DIFFRACTION

Citation Formats

Slatineanu, Tamara, Iordan, Alexandra Raluca, Palamaru, Mircea Nicolae, E-mail: palamaru@uaic.ro, Caltun, Ovidiu Florin, Gafton, Vasilica, and Leontie, Liviu. Synthesis and characterization of nanocrystalline Zn ferrites substituted with Ni. United States: N. p., 2011. Web. doi:10.1016/J.MATERRESBULL.2011.05.002.
Slatineanu, Tamara, Iordan, Alexandra Raluca, Palamaru, Mircea Nicolae, E-mail: palamaru@uaic.ro, Caltun, Ovidiu Florin, Gafton, Vasilica, & Leontie, Liviu. Synthesis and characterization of nanocrystalline Zn ferrites substituted with Ni. United States. doi:10.1016/J.MATERRESBULL.2011.05.002.
Slatineanu, Tamara, Iordan, Alexandra Raluca, Palamaru, Mircea Nicolae, E-mail: palamaru@uaic.ro, Caltun, Ovidiu Florin, Gafton, Vasilica, and Leontie, Liviu. Thu . "Synthesis and characterization of nanocrystalline Zn ferrites substituted with Ni". United States. doi:10.1016/J.MATERRESBULL.2011.05.002.
@article{osti_22212227,
title = {Synthesis and characterization of nanocrystalline Zn ferrites substituted with Ni},
author = {Slatineanu, Tamara and Iordan, Alexandra Raluca and Palamaru, Mircea Nicolae, E-mail: palamaru@uaic.ro and Caltun, Ovidiu Florin and Gafton, Vasilica and Leontie, Liviu},
abstractNote = {Highlights: {yields} Ni{sub x}Zn{sub 1-x}Fe{sub 2}O{sub 4} are synthesized by sol-gel auto-combustion method using tartaric acid. {yields} XRD patterns reveal spinel structure and the crystallite size is max. 40 nm. {yields} SEM images for Ni{sub 0.6}Zn{sub 0.4}Fe{sub 2}O{sub 4} confirm the nano-scale crystallite size. {yields} The highest value of samples porosity belongs to Ni{sub 0.6}Zn{sub 0.4}Fe{sub 2}O{sub 4}. {yields} The maximum value of the magnetization is 63 emu/g for Ni{sub 0.8}Zn{sub 0.2}Fe{sub 2}O{sub 4}. -- Abstract: Nanocrystalline powders of nickel substituted zinc ferrite with general formula Ni{sub x}Zn{sub 1-x}Fe{sub 2}O{sub 4} (x = 0, 0.2, 0.4, 0.6, 0.8, 1) have been synthesized via sol-gel auto-combustion method using tartaric acid as combustion-complexing agent. Samples were sintered at 773 K and 973 K in static air atmosphere. The absence of the organic phase and the spinel formation were monitored by using Fourier transform infrared spectroscopy. The structure and crystallite size were analyzed from X-ray diffraction data revealing spinel mono-phase formation in the range of nanometric crystallite size confirmed also through scanning electron microscopy. Mean size of crystallites lay in the range 20-40 nm. The influence of nickel content on the microstructure was investigated considering the crystallite size, distance between adjacent crystal planes, lattice parameter and porosity. The variation of magnetic properties of the samples was studied by using vibrating samples magnetometer and discussed considering the proposed cation distribution, relative bond angles and canting angles. The highest maximum value of the magnetization (63 emu/g) was found for Ni{sub 0.8}Zn{sub 0.2}Fe{sub 2}O{sub 4}.},
doi = {10.1016/J.MATERRESBULL.2011.05.002},
journal = {Materials Research Bulletin},
issn = {0025-5408},
number = 9,
volume = 46,
place = {United States},
year = {2011},
month = {9}
}