Reduced graphene oxide (RGO)/Mn3O4 nanocomposites for dielectric loss properties and electromagnetic interference shielding effectiveness at high frequency

Yan Wang; Hongtao Guan; Chenjun Dong; Xuechun Xiao; Shangfeng Du; Yude Wang

doi:10.1016/j.ceramint.2015.09.022

Reduced graphene oxide (RGO)/Mn3O4 nanocomposites for dielectric loss properties and electromagnetic interference shielding effectiveness at high frequency

Yan Wang, Hongtao Guan, Chenjun Dong, Xuechun Xiao, Shangfeng Du, Yude Wang

Chemical Engineering

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Abstract

Reduced graphene oxide (RGO)/Mn3O4 nanocomposites are prepared by a one-step hydrothermal approach and the performance of electromagnetic interference (EMI) shielding was studied. Based on an enhanced electrical conductivity through micro-current network induced by unique 2D nanostructures of RGO, the electron hopping between Mn2+ and Mn3+ is discussed. Benefiting from the enhanced effect of Debye dipolar relaxation and Maxwell-Wagner-Sillars (MWS) polarization on dielectric properties, electromagnetic wave propagating and microwave attenuation performance, the maximum EMI shielding effectiveness of 29 dB is achieved.

Original language	English
Pages (from-to)	936-942
Journal	Ceramics International
Volume	42
Issue number	1
Early online date	11 Sept 2015
DOIs	https://doi.org/10.1016/j.ceramint.2015.09.022
Publication status	Published - Jan 2016

Keywords

Nanocomposites
Dielectric properties
Magnetic properties
EMI shielding effectiveness

ASJC Scopus subject areas

Ceramics and Composites

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10.1016/j.ceramint.2015.09.022

Wang_et_al_2015_Reduced_graphene_oxide_Ceramics_International
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title = "Reduced graphene oxide (RGO)/Mn3O4 nanocomposites for dielectric loss properties and electromagnetic interference shielding effectiveness at high frequency",

abstract = "Reduced graphene oxide (RGO)/Mn3O4 nanocomposites are prepared by a one-step hydrothermal approach and the performance of electromagnetic interference (EMI) shielding was studied. Based on an enhanced electrical conductivity through micro-current network induced by unique 2D nanostructures of RGO, the electron hopping between Mn2+ and Mn3+ is discussed. Benefiting from the enhanced effect of Debye dipolar relaxation and Maxwell-Wagner-Sillars (MWS) polarization on dielectric properties, electromagnetic wave propagating and microwave attenuation performance, the maximum EMI shielding effectiveness of 29 dB is achieved.",

keywords = "Nanocomposites, Dielectric properties, Magnetic properties, EMI shielding effectiveness",

author = "Yan Wang and Hongtao Guan and Chenjun Dong and Xuechun Xiao and Shangfeng Du and Yude Wang",

year = "2016",

month = jan,

doi = "10.1016/j.ceramint.2015.09.022",

language = "English",

volume = "42",

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journal = "Ceramics International",

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T1 - Reduced graphene oxide (RGO)/Mn3O4 nanocomposites for dielectric loss properties and electromagnetic interference shielding effectiveness at high frequency

AU - Wang, Yan

AU - Guan, Hongtao

AU - Dong, Chenjun

AU - Xiao, Xuechun

AU - Du, Shangfeng

AU - Wang, Yude

PY - 2016/1

Y1 - 2016/1

N2 - Reduced graphene oxide (RGO)/Mn3O4 nanocomposites are prepared by a one-step hydrothermal approach and the performance of electromagnetic interference (EMI) shielding was studied. Based on an enhanced electrical conductivity through micro-current network induced by unique 2D nanostructures of RGO, the electron hopping between Mn2+ and Mn3+ is discussed. Benefiting from the enhanced effect of Debye dipolar relaxation and Maxwell-Wagner-Sillars (MWS) polarization on dielectric properties, electromagnetic wave propagating and microwave attenuation performance, the maximum EMI shielding effectiveness of 29 dB is achieved.

AB - Reduced graphene oxide (RGO)/Mn3O4 nanocomposites are prepared by a one-step hydrothermal approach and the performance of electromagnetic interference (EMI) shielding was studied. Based on an enhanced electrical conductivity through micro-current network induced by unique 2D nanostructures of RGO, the electron hopping between Mn2+ and Mn3+ is discussed. Benefiting from the enhanced effect of Debye dipolar relaxation and Maxwell-Wagner-Sillars (MWS) polarization on dielectric properties, electromagnetic wave propagating and microwave attenuation performance, the maximum EMI shielding effectiveness of 29 dB is achieved.

KW - Nanocomposites

KW - Dielectric properties

KW - Magnetic properties

KW - EMI shielding effectiveness

U2 - 10.1016/j.ceramint.2015.09.022

DO - 10.1016/j.ceramint.2015.09.022

M3 - Article

SN - 0272-8842

VL - 42

SP - 936

EP - 942

JO - Ceramics International

JF - Ceramics International

IS - 1

ER -

Reduced graphene oxide (RGO)/Mn3O4 nanocomposites for dielectric loss properties and electromagnetic interference shielding effectiveness at high frequency

Abstract

Keywords

ASJC Scopus subject areas

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