Synthesis of Fe3O4 hollow nanospheres-carbon nanotubes nanocomposites for the enhancement of dielectric heating performance

Bin Zhao; Xiaoyuan Zhang; Xianzhu Fu; Conor McCarthy

doi:10.1016/j.matlet.2018.09.155

Synthesis of Fe₃O₄ hollow nanospheres-carbon nanotubes nanocomposites for the enhancement of dielectric heating performance

Bin Zhao, Xiaoyuan Zhang, Xianzhu Fu, Conor McCarthy

School of Engineering

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

Abstract

Fe₃O₄ hollow nanospheres-carbon nanotubes (Fe₃O₄ HNSs-CNTs) nanocomposites were synthesized under one-pot solvothermal treatment. The crystalline structure, size and morphology of the composite products are characterized by XRD, SEM and TEM, indicating that Fe₃O₄ HNSs are tightly wrapped by CNTs with a good distribution. The products were dispersed in silicone oil for evaluating the dielectric heating performance under microwave irradiation. The Fe₃O₄ HNSs-CNTs nanocomposite (mass ratio 1:9) exhibits the best dielectric heating performance under microwave irradiation among all products, probably because an optimized proportion of Fe₃O₄ HNSs can improve the joint heating effect where the Fe₃O₄ HNSs as bridges between CNTs strengthen the interfacial polarization. The nanocomposites can be totally separated from the liquid medium by magnetic decantation.

Original language	English
Pages (from-to)	31-34
Number of pages	4
Journal	Materials Letters
Volume	235
DOIs	https://doi.org/10.1016/j.matlet.2018.09.155
Publication status	Published - 15 Jan 2019

Keywords

Carbon nanotubes
Composite materials
Dielectric heating
Magnetic oxide
Magnetic separation
Microwave

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10.1016/j.matlet.2018.09.155

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title = "Synthesis of Fe3O4 hollow nanospheres-carbon nanotubes nanocomposites for the enhancement of dielectric heating performance",

abstract = "Fe3O4 hollow nanospheres-carbon nanotubes (Fe3O4 HNSs-CNTs) nanocomposites were synthesized under one-pot solvothermal treatment. The crystalline structure, size and morphology of the composite products are characterized by XRD, SEM and TEM, indicating that Fe3O4 HNSs are tightly wrapped by CNTs with a good distribution. The products were dispersed in silicone oil for evaluating the dielectric heating performance under microwave irradiation. The Fe3O4 HNSs-CNTs nanocomposite (mass ratio 1:9) exhibits the best dielectric heating performance under microwave irradiation among all products, probably because an optimized proportion of Fe3O4 HNSs can improve the joint heating effect where the Fe3O4 HNSs as bridges between CNTs strengthen the interfacial polarization. The nanocomposites can be totally separated from the liquid medium by magnetic decantation.",

keywords = "Carbon nanotubes, Composite materials, Dielectric heating, Magnetic oxide, Magnetic separation, Microwave",

author = "Bin Zhao and Xiaoyuan Zhang and Xianzhu Fu and Conor McCarthy",

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year = "2019",

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doi = "10.1016/j.matlet.2018.09.155",

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T1 - Synthesis of Fe3O4 hollow nanospheres-carbon nanotubes nanocomposites for the enhancement of dielectric heating performance

AU - Zhao, Bin

AU - Zhang, Xiaoyuan

AU - Fu, Xianzhu

AU - McCarthy, Conor

PY - 2019/1/15

Y1 - 2019/1/15

N2 - Fe3O4 hollow nanospheres-carbon nanotubes (Fe3O4 HNSs-CNTs) nanocomposites were synthesized under one-pot solvothermal treatment. The crystalline structure, size and morphology of the composite products are characterized by XRD, SEM and TEM, indicating that Fe3O4 HNSs are tightly wrapped by CNTs with a good distribution. The products were dispersed in silicone oil for evaluating the dielectric heating performance under microwave irradiation. The Fe3O4 HNSs-CNTs nanocomposite (mass ratio 1:9) exhibits the best dielectric heating performance under microwave irradiation among all products, probably because an optimized proportion of Fe3O4 HNSs can improve the joint heating effect where the Fe3O4 HNSs as bridges between CNTs strengthen the interfacial polarization. The nanocomposites can be totally separated from the liquid medium by magnetic decantation.

AB - Fe3O4 hollow nanospheres-carbon nanotubes (Fe3O4 HNSs-CNTs) nanocomposites were synthesized under one-pot solvothermal treatment. The crystalline structure, size and morphology of the composite products are characterized by XRD, SEM and TEM, indicating that Fe3O4 HNSs are tightly wrapped by CNTs with a good distribution. The products were dispersed in silicone oil for evaluating the dielectric heating performance under microwave irradiation. The Fe3O4 HNSs-CNTs nanocomposite (mass ratio 1:9) exhibits the best dielectric heating performance under microwave irradiation among all products, probably because an optimized proportion of Fe3O4 HNSs can improve the joint heating effect where the Fe3O4 HNSs as bridges between CNTs strengthen the interfacial polarization. The nanocomposites can be totally separated from the liquid medium by magnetic decantation.

KW - Carbon nanotubes

KW - Composite materials

KW - Dielectric heating

KW - Magnetic oxide

KW - Magnetic separation

KW - Microwave

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JO - Materials Letters

JF - Materials Letters

ER -

Synthesis of Fe₃O₄ hollow nanospheres-carbon nanotubes nanocomposites for the enhancement of dielectric heating performance

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Keywords

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