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Title: Effect of Preparation Conditions on the Structure and Magnetic Properties of Metal-Doped Magnesium Ferrites Synthesized From Laterite Leaching Solutions

Abstract

In this paper, metal-doped magnesium ferrites (MgFe{sub 2}O{sub 4}) were synthesized from laterite leaching solutions using a coprecipitation-calcination method. The as-synthesized samples were characterized by x-ray diffraction (XRD), Fourier transform infrared spectrometer (FTIR), and physical property measurement system (PPMS) to determine the structure and magnetic properties. The effects of preparation conditions including precipitant reagents and metal ion concentrations in the laterite leaching solutions on the as-prepared spinel ferrites were investigated systematically. It is indicated that Ni–Co–Mn-doped MgFe{sub 2}O{sub 4} and Mn–Al–Cr-doped MgFe{sub 2}O{sub 4} could be synthesized from laterite leaching solutions by using sodium hydroxide (NaOH) and ammonia solution (NH{sub 3}⋅H{sub 2}O) as precipitant reagent, respectively. By adjusting the metal ion concentrations in the laterite leaching solutions, Ni–Co–Mn-doped MgFe{sub 2}O{sub 4} with different substitution contents were obtained. With the Ni and Mn substitution content increasing, the lattice constant and average grain size decreased, while x-ray density increased correspondingly. Magnetic property tests indicated that all the as-prepared samples exhibited typical ferrimagnetic behavior at room temperature, and the saturation magnetization (Ms) depended on the Ni, Co, and Mn substitution content. Specifically, the Ms and Hc values of the as-prepared metal-doped MgFe{sub 2}O{sub 4} sample with optimum substitution content of 0.185 could reachmore » 33.22 emu g{sup −1} and 53 Oe, respectively.« less

Authors:
;  [1]
  1. Shanxi University, Institute of Resources and Environment Engineering, State Environmental Protection Key Laboratory of Efficient Utilization Technology of Coal Waste Resources, Shanxi Collaborative Innovation Center of High Value-added Utilization of Coal-related Wastes (China)
Publication Date:
OSTI Identifier:
22771311
Resource Type:
Journal Article
Journal Name:
Journal of Superconductivity and Novel Magnetism
Additional Journal Information:
Journal Volume: 31; Journal Issue: 5; Other Information: Copyright (c) 2018 Springer Science+Business Media, LLC, part of Springer Nature; Article Copyright (c) 2017 Springer Science+Business Media, LLC; http://www.springer-ny.com; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1557-1939
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; AMMONIA; CALCINATION; CONCENTRATION RATIO; COPRECIPITATION; DOPED MATERIALS; FERRITES; FOURIER TRANSFORM SPECTROMETERS; GRAIN SIZE; INFRARED SPECTROMETERS; LATTICE PARAMETERS; LEACHING; MAGNESIUM; MAGNETIC PROPERTIES; MAGNETIZATION; SODIUM HYDROXIDES; TEMPERATURE RANGE 0273-0400 K; X RADIATION; X-RAY DIFFRACTION

Citation Formats

Gao, Jian-ming, and Cheng, Fangqin. Effect of Preparation Conditions on the Structure and Magnetic Properties of Metal-Doped Magnesium Ferrites Synthesized From Laterite Leaching Solutions. United States: N. p., 2018. Web. doi:10.1007/S10948-017-4354-4.
Gao, Jian-ming, & Cheng, Fangqin. Effect of Preparation Conditions on the Structure and Magnetic Properties of Metal-Doped Magnesium Ferrites Synthesized From Laterite Leaching Solutions. United States. doi:10.1007/S10948-017-4354-4.
Gao, Jian-ming, and Cheng, Fangqin. Tue . "Effect of Preparation Conditions on the Structure and Magnetic Properties of Metal-Doped Magnesium Ferrites Synthesized From Laterite Leaching Solutions". United States. doi:10.1007/S10948-017-4354-4.
@article{osti_22771311,
title = {Effect of Preparation Conditions on the Structure and Magnetic Properties of Metal-Doped Magnesium Ferrites Synthesized From Laterite Leaching Solutions},
author = {Gao, Jian-ming and Cheng, Fangqin},
abstractNote = {In this paper, metal-doped magnesium ferrites (MgFe{sub 2}O{sub 4}) were synthesized from laterite leaching solutions using a coprecipitation-calcination method. The as-synthesized samples were characterized by x-ray diffraction (XRD), Fourier transform infrared spectrometer (FTIR), and physical property measurement system (PPMS) to determine the structure and magnetic properties. The effects of preparation conditions including precipitant reagents and metal ion concentrations in the laterite leaching solutions on the as-prepared spinel ferrites were investigated systematically. It is indicated that Ni–Co–Mn-doped MgFe{sub 2}O{sub 4} and Mn–Al–Cr-doped MgFe{sub 2}O{sub 4} could be synthesized from laterite leaching solutions by using sodium hydroxide (NaOH) and ammonia solution (NH{sub 3}⋅H{sub 2}O) as precipitant reagent, respectively. By adjusting the metal ion concentrations in the laterite leaching solutions, Ni–Co–Mn-doped MgFe{sub 2}O{sub 4} with different substitution contents were obtained. With the Ni and Mn substitution content increasing, the lattice constant and average grain size decreased, while x-ray density increased correspondingly. Magnetic property tests indicated that all the as-prepared samples exhibited typical ferrimagnetic behavior at room temperature, and the saturation magnetization (Ms) depended on the Ni, Co, and Mn substitution content. Specifically, the Ms and Hc values of the as-prepared metal-doped MgFe{sub 2}O{sub 4} sample with optimum substitution content of 0.185 could reach 33.22 emu g{sup −1} and 53 Oe, respectively.},
doi = {10.1007/S10948-017-4354-4},
journal = {Journal of Superconductivity and Novel Magnetism},
issn = {1557-1939},
number = 5,
volume = 31,
place = {United States},
year = {2018},
month = {5}
}