Hydrothermally Synthesized Mg-Based Spinel Nanoferrites: Phase Formation and Study on Magnetic Features and Microwave Characteristics

Hydrothermally Synthesized Mg-Based Spinel Nanoferrites: Phase Formation and Study on Magnetic Features and Microwave Characteristics

Three kinds of magnesium-based spinel nanoferrites with the chemical formulas of MgFe<sub>2</sub>O<sub>4</sub> (Mg ferrite), Mg<sub>0.9</sub>Mn<sub>0.1</sub>Fe<sub>2</sub>O<sub>4</sub> (Mg-Mn ferrite), and Mg<sub>0.9</s...

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Main Authors: Chien-Yie Tsay, Yi-Chun Chiu, Chien-Ming Lei
Format: Article
Language:English
Published: MDPI AG 2018-11-01
Series:Materials
Subjects:
magnesium ferrite
nanoparticles
hydrothermal synthesis
magnetic properties
superparamagnetism
microwave properties
Online Access:https://www.mdpi.com/1996-1944/11/11/2274
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spelling doaj-635a2b7d60634e118109cc1ae3c6c5472020-11-24T20:44:36ZengMDPI AGMaterials1996-19442018-11-011111227410.3390/ma11112274ma11112274Hydrothermally Synthesized Mg-Based Spinel Nanoferrites: Phase Formation and Study on Magnetic Features and Microwave CharacteristicsChien-Yie Tsay0Yi-Chun Chiu1Chien-Ming Lei2Department of Materials Science and Engineering, Feng Chia University, Taichung 40724, TaiwanDepartment of Materials Science and Engineering, Feng Chia University, Taichung 40724, TaiwanDepartment of Chemical and Materials Engineering, Chinese Culture University, Taipei 11114, TaiwanThree kinds of magnesium-based spinel nanoferrites with the chemical formulas of MgFe<sub>2</sub>O<sub>4</sub> (Mg ferrite), Mg<sub>0.9</sub>Mn<sub>0.1</sub>Fe<sub>2</sub>O<sub>4</sub> (Mg-Mn ferrite), and Mg<sub>0.9</sub>Mn<sub>0.1</sub>In<sub>0.1</sub>Fe<sub>1.9</sub>O<sub>4</sub> (Mg-Mn-In ferrite) were synthesized by hydrothermal route. We report the composition-dependent magnetic parameters and microwave properties of Mg-based ferrite nanoparticles. XRD results revealed that the Mg-based ferrite nanoparticles exhibited a cubic spinel structure and had an average nanocrystallite size in the range of 5.8&#8315;2.6 nm. Raman spectroscopy analysis confirmed the formation of cubic-spinel phase Mg-based nanoferrites. The room-temperature magnetization measurements indicated that the Mg ferrite nanoparticles had superparamagnetic behavior; whereas the Mg-Mn and Mg-Mn-In ferrite nanoparticles exhibited a paramagnetic nature. The microwave properties of obtained ferrite nanoparticles were studied by alternating current (AC) magnetic susceptibility measurement and electron paramagnetic resonance (EPR) spectroscopy. It was found that the un-substituted Mg ferrite sample exhibited microwave characteristics better than those of the Mn substituted and Mn-In co-substituted Mg ferrite samples.https://www.mdpi.com/1996-1944/11/11/2274magnesium ferritenanoparticleshydrothermal synthesismagnetic propertiessuperparamagnetismmicrowave properties
collection DOAJ
language English
format Article
sources DOAJ
author Chien-Yie Tsay
Yi-Chun Chiu
Chien-Ming Lei
spellingShingle Chien-Yie Tsay
Yi-Chun Chiu
Chien-Ming Lei
Hydrothermally Synthesized Mg-Based Spinel Nanoferrites: Phase Formation and Study on Magnetic Features and Microwave Characteristics
Materials
magnesium ferrite
nanoparticles
hydrothermal synthesis
magnetic properties
superparamagnetism
microwave properties
author_facet Chien-Yie Tsay
Yi-Chun Chiu
Chien-Ming Lei
author_sort Chien-Yie Tsay
title Hydrothermally Synthesized Mg-Based Spinel Nanoferrites: Phase Formation and Study on Magnetic Features and Microwave Characteristics
title_short Hydrothermally Synthesized Mg-Based Spinel Nanoferrites: Phase Formation and Study on Magnetic Features and Microwave Characteristics
title_full Hydrothermally Synthesized Mg-Based Spinel Nanoferrites: Phase Formation and Study on Magnetic Features and Microwave Characteristics
title_fullStr Hydrothermally Synthesized Mg-Based Spinel Nanoferrites: Phase Formation and Study on Magnetic Features and Microwave Characteristics
title_full_unstemmed Hydrothermally Synthesized Mg-Based Spinel Nanoferrites: Phase Formation and Study on Magnetic Features and Microwave Characteristics
title_sort hydrothermally synthesized mg-based spinel nanoferrites: phase formation and study on magnetic features and microwave characteristics
publisher MDPI AG
series Materials
issn 1996-1944
publishDate 2018-11-01
description Three kinds of magnesium-based spinel nanoferrites with the chemical formulas of MgFe<sub>2</sub>O<sub>4</sub> (Mg ferrite), Mg<sub>0.9</sub>Mn<sub>0.1</sub>Fe<sub>2</sub>O<sub>4</sub> (Mg-Mn ferrite), and Mg<sub>0.9</sub>Mn<sub>0.1</sub>In<sub>0.1</sub>Fe<sub>1.9</sub>O<sub>4</sub> (Mg-Mn-In ferrite) were synthesized by hydrothermal route. We report the composition-dependent magnetic parameters and microwave properties of Mg-based ferrite nanoparticles. XRD results revealed that the Mg-based ferrite nanoparticles exhibited a cubic spinel structure and had an average nanocrystallite size in the range of 5.8&#8315;2.6 nm. Raman spectroscopy analysis confirmed the formation of cubic-spinel phase Mg-based nanoferrites. The room-temperature magnetization measurements indicated that the Mg ferrite nanoparticles had superparamagnetic behavior; whereas the Mg-Mn and Mg-Mn-In ferrite nanoparticles exhibited a paramagnetic nature. The microwave properties of obtained ferrite nanoparticles were studied by alternating current (AC) magnetic susceptibility measurement and electron paramagnetic resonance (EPR) spectroscopy. It was found that the un-substituted Mg ferrite sample exhibited microwave characteristics better than those of the Mn substituted and Mn-In co-substituted Mg ferrite samples.
topic magnesium ferrite
nanoparticles
hydrothermal synthesis
magnetic properties
superparamagnetism
microwave properties
url https://www.mdpi.com/1996-1944/11/11/2274
work_keys_str_mv AT chienyietsay hydrothermallysynthesizedmgbasedspinelnanoferritesphaseformationandstudyonmagneticfeaturesandmicrowavecharacteristics
AT yichunchiu hydrothermallysynthesizedmgbasedspinelnanoferritesphaseformationandstudyonmagneticfeaturesandmicrowavecharacteristics
AT chienminglei hydrothermallysynthesizedmgbasedspinelnanoferritesphaseformationandstudyonmagneticfeaturesandmicrowavecharacteristics
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