Synthesis and microwave absorption enhancement property of core-shell FeNi3@SiO2-decorated reduced graphene oxide nanosheets

Xiao Ding; Ying Huang; Meng Zong

doi:10.1016/j.matlet.2015.05.130

Synthesis and microwave absorption enhancement property of core-shell FeNi₃@SiO₂-decorated reduced graphene oxide nanosheets

Xiao Ding, Ying Huang, Meng Zong

School of Chemistry and Chemical Engineering

Northwestern Polytechnical University Xian

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

40 Scopus citations

Abstract

Abstract FeNi₃@SiO₂-decorated reduced graphene oxide (FeNi₃@SiO₂@rGO) nanocomposites were prepared by combining liquid-phase reduction reaction with hydrothermal reaction. TEM results illustrate that the FeNi₃@SiO₂ nanoparticles (NPs) are of core-shell structure with an average diameter of about 50 nm. XPS analysis shows the reduction of GO happens in the hydrothermal process. The maximum reflection loss (R_L) is -49.4 dB at 8.64 GHz with an optimal thickness of 3.8 mm and the bandwidth (R_L<-10 dB) is 3.38 GHz ranges from 6.72 to 10.1 GHz. The microwave absorption mechanism is mainly attributed to the dielectric loss. It is believed that the FeNi₃@SiO₂@rGO nanocomposites can serve as an excellent microwave absorbent and can be widely used in practice.

Original language	English
Article number	19024
Pages (from-to)	285-289
Number of pages	5
Journal	Materials Letters
Volume	157
DOIs	https://doi.org/10.1016/j.matlet.2015.05.130
State	Published - 11 Jun 2015

Keywords

Carbon materials
Core-shell
FeNi@SiO@rGO
Microwave absorption
Nanoparticles

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title = "Synthesis and microwave absorption enhancement property of core-shell FeNi3@SiO2-decorated reduced graphene oxide nanosheets",

abstract = "Abstract FeNi3@SiO2-decorated reduced graphene oxide (FeNi3@SiO2@rGO) nanocomposites were prepared by combining liquid-phase reduction reaction with hydrothermal reaction. TEM results illustrate that the FeNi3@SiO2 nanoparticles (NPs) are of core-shell structure with an average diameter of about 50 nm. XPS analysis shows the reduction of GO happens in the hydrothermal process. The maximum reflection loss (RL) is -49.4 dB at 8.64 GHz with an optimal thickness of 3.8 mm and the bandwidth (RL<-10 dB) is 3.38 GHz ranges from 6.72 to 10.1 GHz. The microwave absorption mechanism is mainly attributed to the dielectric loss. It is believed that the FeNi3@SiO2@rGO nanocomposites can serve as an excellent microwave absorbent and can be widely used in practice.",

keywords = "Carbon materials, Core-shell, FeNi@SiO@rGO, Microwave absorption, Nanoparticles",

author = "Xiao Ding and Ying Huang and Meng Zong",

note = "Publisher Copyright: {\textcopyright} 2015 Elsevier B.V.",

year = "2015",

month = jun,

day = "11",

doi = "10.1016/j.matlet.2015.05.130",

language = "英语",

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T1 - Synthesis and microwave absorption enhancement property of core-shell FeNi3@SiO2-decorated reduced graphene oxide nanosheets

AU - Ding, Xiao

AU - Huang, Ying

AU - Zong, Meng

PY - 2015/6/11

Y1 - 2015/6/11

N2 - Abstract FeNi3@SiO2-decorated reduced graphene oxide (FeNi3@SiO2@rGO) nanocomposites were prepared by combining liquid-phase reduction reaction with hydrothermal reaction. TEM results illustrate that the FeNi3@SiO2 nanoparticles (NPs) are of core-shell structure with an average diameter of about 50 nm. XPS analysis shows the reduction of GO happens in the hydrothermal process. The maximum reflection loss (RL) is -49.4 dB at 8.64 GHz with an optimal thickness of 3.8 mm and the bandwidth (RL<-10 dB) is 3.38 GHz ranges from 6.72 to 10.1 GHz. The microwave absorption mechanism is mainly attributed to the dielectric loss. It is believed that the FeNi3@SiO2@rGO nanocomposites can serve as an excellent microwave absorbent and can be widely used in practice.

AB - Abstract FeNi3@SiO2-decorated reduced graphene oxide (FeNi3@SiO2@rGO) nanocomposites were prepared by combining liquid-phase reduction reaction with hydrothermal reaction. TEM results illustrate that the FeNi3@SiO2 nanoparticles (NPs) are of core-shell structure with an average diameter of about 50 nm. XPS analysis shows the reduction of GO happens in the hydrothermal process. The maximum reflection loss (RL) is -49.4 dB at 8.64 GHz with an optimal thickness of 3.8 mm and the bandwidth (RL<-10 dB) is 3.38 GHz ranges from 6.72 to 10.1 GHz. The microwave absorption mechanism is mainly attributed to the dielectric loss. It is believed that the FeNi3@SiO2@rGO nanocomposites can serve as an excellent microwave absorbent and can be widely used in practice.

KW - Carbon materials

KW - Core-shell

KW - FeNi@SiO@rGO

KW - Microwave absorption

KW - Nanoparticles

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DO - 10.1016/j.matlet.2015.05.130

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JO - Materials Letters

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M1 - 19024

ER -

Synthesis and microwave absorption enhancement property of core-shell FeNi₃@SiO₂-decorated reduced graphene oxide nanosheets

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Keywords

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