Hydrothermal synthesis, magnetic and electromagnetic properties of hexagonal Fe3O4 microplates

Fei Xiang Ma; Xue Yin Sun; Kai He; Jian Tang Jiang; Liang Zhen; Cheng Yan Xu

doi:10.1016/j.jmmm.2014.02.092

Hydrothermal synthesis, magnetic and electromagnetic properties of hexagonal Fe₃O₄ microplates

Fei Xiang Ma, Xue Yin Sun, Kai He, Jian Tang Jiang, Liang Zhen, Cheng Yan Xu^*

^*Corresponding author for this work

NUANCE - Atomic and Nanoscale Characterization Experimental Center

Research output: Contribution to journal › Article › peer-review

9 Scopus citations

Abstract

Magnetite (Fe₃O₄), with an inverse spinel structure, grows naturally in octahedral shape with eight equivalent {111} crystallographic planes. Here we demonstrated the successful morphology tuning of Fe ₃O₄ microcrystal from the dominant octahedral shape to planar microplate shape by a facile hydrothermal method. The top and bottom surfaces of Fe₃O₄ microplates obtained under strongly alkaline and reductive conditions were bounded by {111} facets, and the formation of {111} twin planes was thought to be accountable for the anisotropic morphologies. The obtained Fe₃O₄ microplates delivered saturation magnetization (M_s) of 96.6 emu/g and coercivity (H _c) of 50 Oe. We also measured the electromagnetic properties of Fe₃O₄ microplates for possible applications as filler for electromagnetic wave absorption coatings.

Original language	English (US)
Pages (from-to)	161-165
Number of pages	5
Journal	Journal of Magnetism and Magnetic Materials
Volume	361
DOIs	https://doi.org/10.1016/j.jmmm.2014.02.092
State	Published - Jun 2014

Keywords

2D material
Electromagnetic property
Hydrothermal synthesis
Magnetite

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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title = "Hydrothermal synthesis, magnetic and electromagnetic properties of hexagonal Fe3O4 microplates",

abstract = "Magnetite (Fe3O4), with an inverse spinel structure, grows naturally in octahedral shape with eight equivalent {111} crystallographic planes. Here we demonstrated the successful morphology tuning of Fe 3O4 microcrystal from the dominant octahedral shape to planar microplate shape by a facile hydrothermal method. The top and bottom surfaces of Fe3O4 microplates obtained under strongly alkaline and reductive conditions were bounded by {111} facets, and the formation of {111} twin planes was thought to be accountable for the anisotropic morphologies. The obtained Fe3O4 microplates delivered saturation magnetization (Ms) of 96.6 emu/g and coercivity (H c) of 50 Oe. We also measured the electromagnetic properties of Fe3O4 microplates for possible applications as filler for electromagnetic wave absorption coatings.",

keywords = "2D material, Electromagnetic property, Hydrothermal synthesis, Magnetite",

author = "Ma, {Fei Xiang} and Sun, {Xue Yin} and Kai He and Jiang, {Jian Tang} and Liang Zhen and Xu, {Cheng Yan}",

note = "Funding Information: This work was supported by the Fundamental Research Funds for the Central Universities (No. HIT.BRETIII.201203 ). K.H. was supported by Ellen Williams Fellowship , and also thanks the use of facilities at NispLab of the Maryland NanoCenter. F.X.M. thanks Zeng-Quan Wang for electromagnetic properties measurement. Copyright: Copyright 2014 Elsevier B.V., All rights reserved.",

year = "2014",

month = jun,

doi = "10.1016/j.jmmm.2014.02.092",

language = "English (US)",

volume = "361",

pages = "161--165",

journal = "Journal of Magnetism and Magnetic Materials",

issn = "0304-8853",

publisher = "Elsevier",

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AU - Ma, Fei Xiang

AU - Sun, Xue Yin

AU - He, Kai

AU - Jiang, Jian Tang

AU - Zhen, Liang

AU - Xu, Cheng Yan

N1 - Funding Information: This work was supported by the Fundamental Research Funds for the Central Universities (No. HIT.BRETIII.201203 ). K.H. was supported by Ellen Williams Fellowship , and also thanks the use of facilities at NispLab of the Maryland NanoCenter. F.X.M. thanks Zeng-Quan Wang for electromagnetic properties measurement. Copyright: Copyright 2014 Elsevier B.V., All rights reserved.

PY - 2014/6

Y1 - 2014/6

N2 - Magnetite (Fe3O4), with an inverse spinel structure, grows naturally in octahedral shape with eight equivalent {111} crystallographic planes. Here we demonstrated the successful morphology tuning of Fe 3O4 microcrystal from the dominant octahedral shape to planar microplate shape by a facile hydrothermal method. The top and bottom surfaces of Fe3O4 microplates obtained under strongly alkaline and reductive conditions were bounded by {111} facets, and the formation of {111} twin planes was thought to be accountable for the anisotropic morphologies. The obtained Fe3O4 microplates delivered saturation magnetization (Ms) of 96.6 emu/g and coercivity (H c) of 50 Oe. We also measured the electromagnetic properties of Fe3O4 microplates for possible applications as filler for electromagnetic wave absorption coatings.

AB - Magnetite (Fe3O4), with an inverse spinel structure, grows naturally in octahedral shape with eight equivalent {111} crystallographic planes. Here we demonstrated the successful morphology tuning of Fe 3O4 microcrystal from the dominant octahedral shape to planar microplate shape by a facile hydrothermal method. The top and bottom surfaces of Fe3O4 microplates obtained under strongly alkaline and reductive conditions were bounded by {111} facets, and the formation of {111} twin planes was thought to be accountable for the anisotropic morphologies. The obtained Fe3O4 microplates delivered saturation magnetization (Ms) of 96.6 emu/g and coercivity (H c) of 50 Oe. We also measured the electromagnetic properties of Fe3O4 microplates for possible applications as filler for electromagnetic wave absorption coatings.

KW - 2D material

KW - Electromagnetic property

KW - Hydrothermal synthesis

KW - Magnetite

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