Synthesis, optical and magnetic properties of α-Fe2O 3 nanoparticles with various shapes

Xin Zhang; Yongan Niu; Yao Li; Xuemei Hou; Yibo Wang; Rui Bai; Jiupeng Zhao

doi:10.1016/j.matlet.2013.02.070

Synthesis, optical and magnetic properties of α-Fe₂O ₃ nanoparticles with various shapes

Xin Zhang
, Yongan Niu
, Yao Li
, Xuemei Hou
, Yibo Wang
, Rui Bai
, Jiupeng Zhao^*

^*Corresponding author for this work

School of Astronautics

School of Chemistry and Chemical Engineering, Harbin Institute of Technology
Harbin Institute of Technology

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

110 Scopus citations

Abstract

The various shapes of α-Fe₂O₃ nanoparticles were successfully prepared via hydrothermal and solvothermal synthesis. The morphologies and crystalline structures were controlled by different catalysts. Compared with others, the spindle α-Fe₂O₃ nanoparticle exhibited excellent optical and magnetic properties. Its optical band gap was at 2.05 eV, calculated by the Tauc plot method. The magnetic hysteresis loops demonstrated that remanent magnetization (M_r) was of 0.0951 emu/g and coercivity (H_c) was of 1645 Oe. Furthermore, the results revealed that the structure of the α-Fe₂O₃ had a remarkable shape-dependent effect on the optical and magnetic properties.

Original language	English
Pages (from-to)	111-114
Number of pages	4
Journal	Materials Letters
Volume	99
DOIs	https://doi.org/10.1016/j.matlet.2013.02.070
State	Published - 2013

Keywords

Hydrothermal synthesis
Magnetic materials
Nanoparticles
Shape-dependent effect
α-FeO

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10.1016/j.matlet.2013.02.070

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title = "Synthesis, optical and magnetic properties of α-Fe2O 3 nanoparticles with various shapes",

abstract = "The various shapes of α-Fe2O3 nanoparticles were successfully prepared via hydrothermal and solvothermal synthesis. The morphologies and crystalline structures were controlled by different catalysts. Compared with others, the spindle α-Fe2O3 nanoparticle exhibited excellent optical and magnetic properties. Its optical band gap was at 2.05 eV, calculated by the Tauc plot method. The magnetic hysteresis loops demonstrated that remanent magnetization (Mr) was of 0.0951 emu/g and coercivity (Hc) was of 1645 Oe. Furthermore, the results revealed that the structure of the α-Fe2O3 had a remarkable shape-dependent effect on the optical and magnetic properties.",

keywords = "Hydrothermal synthesis, Magnetic materials, Nanoparticles, Shape-dependent effect, α-FeO",

author = "Xin Zhang and Yongan Niu and Yao Li and Xuemei Hou and Yibo Wang and Rui Bai and Jiupeng Zhao",

year = "2013",

doi = "10.1016/j.matlet.2013.02.070",

language = "英语",

volume = "99",

pages = "111--114",

journal = "Materials Letters",

issn = "0167-577X",

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TY - JOUR

T1 - Synthesis, optical and magnetic properties of α-Fe2O 3 nanoparticles with various shapes

AU - Zhang, Xin

AU - Niu, Yongan

AU - Li, Yao

AU - Hou, Xuemei

AU - Wang, Yibo

AU - Bai, Rui

AU - Zhao, Jiupeng

PY - 2013

Y1 - 2013

N2 - The various shapes of α-Fe2O3 nanoparticles were successfully prepared via hydrothermal and solvothermal synthesis. The morphologies and crystalline structures were controlled by different catalysts. Compared with others, the spindle α-Fe2O3 nanoparticle exhibited excellent optical and magnetic properties. Its optical band gap was at 2.05 eV, calculated by the Tauc plot method. The magnetic hysteresis loops demonstrated that remanent magnetization (Mr) was of 0.0951 emu/g and coercivity (Hc) was of 1645 Oe. Furthermore, the results revealed that the structure of the α-Fe2O3 had a remarkable shape-dependent effect on the optical and magnetic properties.

AB - The various shapes of α-Fe2O3 nanoparticles were successfully prepared via hydrothermal and solvothermal synthesis. The morphologies and crystalline structures were controlled by different catalysts. Compared with others, the spindle α-Fe2O3 nanoparticle exhibited excellent optical and magnetic properties. Its optical band gap was at 2.05 eV, calculated by the Tauc plot method. The magnetic hysteresis loops demonstrated that remanent magnetization (Mr) was of 0.0951 emu/g and coercivity (Hc) was of 1645 Oe. Furthermore, the results revealed that the structure of the α-Fe2O3 had a remarkable shape-dependent effect on the optical and magnetic properties.

KW - Hydrothermal synthesis

KW - Magnetic materials

KW - Nanoparticles

KW - Shape-dependent effect

KW - α-FeO

UR - https://www.scopus.com/pages/publications/84875185227

U2 - 10.1016/j.matlet.2013.02.070

DO - 10.1016/j.matlet.2013.02.070

M3 - 文章

AN - SCOPUS:84875185227

SN - 0167-577X

VL - 99

SP - 111

EP - 114

JO - Materials Letters

JF - Materials Letters

ER -

Synthesis, optical and magnetic properties of α-Fe₂O ₃ nanoparticles with various shapes

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Keywords

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