Microwave absorbing properties of NiZn-ferrite synthesized from waste iron oxide catalyst

Yeon Hwang

doi:10.1016/j.matlet.2006.03.010

Microwave absorbing properties of NiZn-ferrite synthesized from waste iron oxide catalyst

Yeon Hwang

Dept. of Materials Science & Engineering

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

70 Scopus citations

Abstract

NiZn-ferrite was synthesized from iron oxide catalysts which were thrown away as an industrial waste in the styrene monomer process. Nickel oxide and zinc oxide powders were mixed with finely ground and acid refined waste catalysts, and spinel type ferrite was synthesized by calcination at 900 °C for 2 h followed by sintering at 1325 °C for 5 h. Microwave absorbing properties were investigated by measuring complex permeability and complex permittivity for the composition of Ni_xZn_{1 - x}Fe₂O₄ (x = 0.36, 0.50 and 0.66). The rubber complex ferrite absorber was also produced from calcined ferrite powders without refining. This study showed feasibility of recycling waste iron oxide catalyst as an electromagnetic wave absorber.

Original language	English
Pages (from-to)	3277-3280
Number of pages	4
Journal	Materials Letters
Volume	60
Issue number	27
DOIs	https://doi.org/10.1016/j.matlet.2006.03.010
State	Published - Nov 2006

Keywords

Ceramics
Magnetic materials
Microwave absorber
NiZn-ferrite
Waste iron oxide catalyst

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.matlet.2006.03.010

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title = "Microwave absorbing properties of NiZn-ferrite synthesized from waste iron oxide catalyst",

abstract = "NiZn-ferrite was synthesized from iron oxide catalysts which were thrown away as an industrial waste in the styrene monomer process. Nickel oxide and zinc oxide powders were mixed with finely ground and acid refined waste catalysts, and spinel type ferrite was synthesized by calcination at 900 °C for 2 h followed by sintering at 1325 °C for 5 h. Microwave absorbing properties were investigated by measuring complex permeability and complex permittivity for the composition of NixZn1 - xFe2O4 (x = 0.36, 0.50 and 0.66). The rubber complex ferrite absorber was also produced from calcined ferrite powders without refining. This study showed feasibility of recycling waste iron oxide catalyst as an electromagnetic wave absorber.",

keywords = "Ceramics, Magnetic materials, Microwave absorber, NiZn-ferrite, Waste iron oxide catalyst",

author = "Yeon Hwang",

year = "2006",

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journal = "Materials Letters",

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AU - Hwang, Yeon

PY - 2006/11

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N2 - NiZn-ferrite was synthesized from iron oxide catalysts which were thrown away as an industrial waste in the styrene monomer process. Nickel oxide and zinc oxide powders were mixed with finely ground and acid refined waste catalysts, and spinel type ferrite was synthesized by calcination at 900 °C for 2 h followed by sintering at 1325 °C for 5 h. Microwave absorbing properties were investigated by measuring complex permeability and complex permittivity for the composition of NixZn1 - xFe2O4 (x = 0.36, 0.50 and 0.66). The rubber complex ferrite absorber was also produced from calcined ferrite powders without refining. This study showed feasibility of recycling waste iron oxide catalyst as an electromagnetic wave absorber.

AB - NiZn-ferrite was synthesized from iron oxide catalysts which were thrown away as an industrial waste in the styrene monomer process. Nickel oxide and zinc oxide powders were mixed with finely ground and acid refined waste catalysts, and spinel type ferrite was synthesized by calcination at 900 °C for 2 h followed by sintering at 1325 °C for 5 h. Microwave absorbing properties were investigated by measuring complex permeability and complex permittivity for the composition of NixZn1 - xFe2O4 (x = 0.36, 0.50 and 0.66). The rubber complex ferrite absorber was also produced from calcined ferrite powders without refining. This study showed feasibility of recycling waste iron oxide catalyst as an electromagnetic wave absorber.

KW - Ceramics

KW - Magnetic materials

KW - Microwave absorber

KW - NiZn-ferrite

KW - Waste iron oxide catalyst

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DO - 10.1016/j.matlet.2006.03.010

M3 - Article

AN - SCOPUS:33748426304

SN - 0167-577X

VL - 60

SP - 3277

EP - 3280

JO - Materials Letters

JF - Materials Letters

IS - 27

ER -

Microwave absorbing properties of NiZn-ferrite synthesized from waste iron oxide catalyst

Abstract

Keywords

UN SDGs

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