Achieving excellent bandwidth absorption by a mirror growth process of magnetic porous polyhedron structures

Hualiang Lv; Haiqian Zhang; Jun Zhao; Guangbin Ji; Youwei Du

doi:10.1007/s12274-016-1074-1

Achieving excellent bandwidth absorption by a mirror growth process of magnetic porous polyhedron structures

Hualiang Lv, Haiqian Zhang, Jun Zhao, Guangbin Ji^*, Youwei Du

^*Corresponding author for this work

Department of Biology

Research output: Contribution to journal › Journal article › peer-review

231 Citations (Scopus)

Abstract

A symmetrical Fe₂O₃/BaCO₃ hexagonal cone structure having a height of 10 μm and an edge length of ~4 μm is reported, obtained using a common solvothermal process and a mirror growth process. Focused ion beam and high-resolution transmission electron microscopy techniques revealed that α-Fe₂O₃ was the single crystal feature present. Ba ions contributed to the formation of symmetrical structures exhibited in the final composites. Subsequently, porous magnetic symmetric hexagonal cone structures were used to study the observed intense electromagnetic wave interference. Electromagnetic absorption performance studies at 2–18 GHz indicated stronger attenuation electromagnetic wave ability as compared to other shapes such as spindles, spheres, cubes, and rods. The maximum absorption frequency bandwidth was at 7.2 GHz with a coating thickness d = 1.5 mm. Special structures and the absence of BaCO₃ likely played a vital role in the excellent electromagnetic absorption properties described in this research.

Original language	English
Pages (from-to)	1813-1822
Number of pages	10
Journal	Nano Research
Volume	9
Issue number	6
DOIs	https://doi.org/10.1007/s12274-016-1074-1
Publication status	Published - Jun 2016

Scopus Subject Areas

Materials Science(all)
Electrical and Electronic Engineering

User-Defined Keywords

effective frequency bandwidth
Fe2O3/BaCO3
porous magnetic absorber
single crystal
symmetrical hexagonal cone structure

Access to Document

10.1007/s12274-016-1074-1

Cite this

@article{2b2f2d3e5e144fcd804156334e049966,

title = "Achieving excellent bandwidth absorption by a mirror growth process of magnetic porous polyhedron structures",

abstract = "A symmetrical Fe2O3/BaCO3 hexagonal cone structure having a height of 10 μm and an edge length of ~4 μm is reported, obtained using a common solvothermal process and a mirror growth process. Focused ion beam and high-resolution transmission electron microscopy techniques revealed that α-Fe2O3 was the single crystal feature present. Ba ions contributed to the formation of symmetrical structures exhibited in the final composites. Subsequently, porous magnetic symmetric hexagonal cone structures were used to study the observed intense electromagnetic wave interference. Electromagnetic absorption performance studies at 2–18 GHz indicated stronger attenuation electromagnetic wave ability as compared to other shapes such as spindles, spheres, cubes, and rods. The maximum absorption frequency bandwidth was at 7.2 GHz with a coating thickness d = 1.5 mm. Special structures and the absence of BaCO3 likely played a vital role in the excellent electromagnetic absorption properties described in this research.",

keywords = "effective frequency bandwidth, Fe2O3/BaCO3, porous magnetic absorber, single crystal, symmetrical hexagonal cone structure",

author = "Hualiang Lv and Haiqian Zhang and Jun Zhao and Guangbin Ji and Youwei Du",

note = "Publisher Copyright: {\textcopyright} 2016, Tsinghua University Press and Springer-Verlag Berlin Heidelberg",

year = "2016",

month = jun,

doi = "10.1007/s12274-016-1074-1",

language = "English",

volume = "9",

pages = "1813--1822",

journal = "Nano Research",

issn = "1998-0124",

publisher = "Tsinghua University Press",

number = "6",

}

TY - JOUR

T1 - Achieving excellent bandwidth absorption by a mirror growth process of magnetic porous polyhedron structures

AU - Lv, Hualiang

AU - Zhang, Haiqian

AU - Zhao, Jun

AU - Ji, Guangbin

AU - Du, Youwei

PY - 2016/6

Y1 - 2016/6

N2 - A symmetrical Fe2O3/BaCO3 hexagonal cone structure having a height of 10 μm and an edge length of ~4 μm is reported, obtained using a common solvothermal process and a mirror growth process. Focused ion beam and high-resolution transmission electron microscopy techniques revealed that α-Fe2O3 was the single crystal feature present. Ba ions contributed to the formation of symmetrical structures exhibited in the final composites. Subsequently, porous magnetic symmetric hexagonal cone structures were used to study the observed intense electromagnetic wave interference. Electromagnetic absorption performance studies at 2–18 GHz indicated stronger attenuation electromagnetic wave ability as compared to other shapes such as spindles, spheres, cubes, and rods. The maximum absorption frequency bandwidth was at 7.2 GHz with a coating thickness d = 1.5 mm. Special structures and the absence of BaCO3 likely played a vital role in the excellent electromagnetic absorption properties described in this research.

AB - A symmetrical Fe2O3/BaCO3 hexagonal cone structure having a height of 10 μm and an edge length of ~4 μm is reported, obtained using a common solvothermal process and a mirror growth process. Focused ion beam and high-resolution transmission electron microscopy techniques revealed that α-Fe2O3 was the single crystal feature present. Ba ions contributed to the formation of symmetrical structures exhibited in the final composites. Subsequently, porous magnetic symmetric hexagonal cone structures were used to study the observed intense electromagnetic wave interference. Electromagnetic absorption performance studies at 2–18 GHz indicated stronger attenuation electromagnetic wave ability as compared to other shapes such as spindles, spheres, cubes, and rods. The maximum absorption frequency bandwidth was at 7.2 GHz with a coating thickness d = 1.5 mm. Special structures and the absence of BaCO3 likely played a vital role in the excellent electromagnetic absorption properties described in this research.

KW - effective frequency bandwidth

KW - Fe2O3/BaCO3

KW - porous magnetic absorber

KW - single crystal

KW - symmetrical hexagonal cone structure

UR - http://www.scopus.com/inward/record.url?scp=84963674121&partnerID=8YFLogxK

U2 - 10.1007/s12274-016-1074-1

DO - 10.1007/s12274-016-1074-1

M3 - Journal article

AN - SCOPUS:84963674121

SN - 1998-0124

VL - 9

SP - 1813

EP - 1822

JO - Nano Research

JF - Nano Research

IS - 6

ER -

Achieving excellent bandwidth absorption by a mirror growth process of magnetic porous polyhedron structures

Abstract

Scopus Subject Areas

User-Defined Keywords

Access to Document

Other files and links

Fingerprint

Cite this