Enhanced microwave-absorption with carbon-encapsulated Fe-Co particles on reduced graphene oxide nanosheets with nanoscale-holes in the basal plane

Suping Li; Ying Huang; Ding Ling; Na Zhang; Meng Zong; Xiulan Qin; Panbo Liu

doi:10.1016/j.jcis.2019.02.035

Enhanced microwave-absorption with carbon-encapsulated Fe-Co particles on reduced graphene oxide nanosheets with nanoscale-holes in the basal plane

Suping Li, Ying Huang, Ding Ling, Na Zhang, Meng Zong, Xiulan Qin, Panbo Liu

School of Chemistry and Chemical Engineering

Northwestern Polytechnical University Xian

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

52 Scopus citations

Abstract

In this study, an Fe-Co alloy is coated with carbon and decorated on a holey reduced graphene oxide nanosheet (FeCo@C/HRGO) composite. The structure is synthesized using liquid-phase reduction and hydrothermal processes followed by high-temperature calcination. The FeCo@C/HRGO composite is identified and characterized using XRD, XPS, Raman spectroscopy, TEM, and SEM. This novel composite exhibits excellent electromagnetic-wave absorption properties. The maximum reflection loss for FeCo@C/HRGO reaches −76.6 dB at 16.64 GHz with a thickness of 1.7 mm. The R _L below −10 dB reaches 14.32 GHz for a thickness of 1.7–5.0 mm. This confirms that microwave absorption of FeCo@C can be substantially improved upon decoration with HRGO nanosheets.

Original language	English
Pages (from-to)	188-197
Number of pages	10
Journal	Journal of Colloid and Interface Science
Volume	544
DOIs	https://doi.org/10.1016/j.jcis.2019.02.035
State	Published - 15 May 2019

Keywords

Holey reduced graphene oxide
Magnetic nanoparticles
Microwave absorption

Access to Document

10.1016/j.jcis.2019.02.035

Cite this

@article{633ebab62f9642bd93a68882e1c0ba31,

title = "Enhanced microwave-absorption with carbon-encapsulated Fe-Co particles on reduced graphene oxide nanosheets with nanoscale-holes in the basal plane",

abstract = " In this study, an Fe-Co alloy is coated with carbon and decorated on a holey reduced graphene oxide nanosheet (FeCo@C/HRGO) composite. The structure is synthesized using liquid-phase reduction and hydrothermal processes followed by high-temperature calcination. The FeCo@C/HRGO composite is identified and characterized using XRD, XPS, Raman spectroscopy, TEM, and SEM. This novel composite exhibits excellent electromagnetic-wave absorption properties. The maximum reflection loss for FeCo@C/HRGO reaches −76.6 dB at 16.64 GHz with a thickness of 1.7 mm. The R L below −10 dB reaches 14.32 GHz for a thickness of 1.7–5.0 mm. This confirms that microwave absorption of FeCo@C can be substantially improved upon decoration with HRGO nanosheets.",

keywords = "Holey reduced graphene oxide, Magnetic nanoparticles, Microwave absorption",

author = "Suping Li and Ying Huang and Ding Ling and Na Zhang and Meng Zong and Xiulan Qin and Panbo Liu",

note = "Publisher Copyright: {\textcopyright} 2019",

year = "2019",

month = may,

day = "15",

doi = "10.1016/j.jcis.2019.02.035",

language = "英语",

volume = "544",

pages = "188--197",

journal = "Journal of Colloid and Interface Science",

issn = "0021-9797",

publisher = "Academic Press Inc.",

}

TY - JOUR

T1 - Enhanced microwave-absorption with carbon-encapsulated Fe-Co particles on reduced graphene oxide nanosheets with nanoscale-holes in the basal plane

AU - Li, Suping

AU - Huang, Ying

AU - Ling, Ding

AU - Zhang, Na

AU - Zong, Meng

AU - Qin, Xiulan

AU - Liu, Panbo

PY - 2019/5/15

Y1 - 2019/5/15

N2 - In this study, an Fe-Co alloy is coated with carbon and decorated on a holey reduced graphene oxide nanosheet (FeCo@C/HRGO) composite. The structure is synthesized using liquid-phase reduction and hydrothermal processes followed by high-temperature calcination. The FeCo@C/HRGO composite is identified and characterized using XRD, XPS, Raman spectroscopy, TEM, and SEM. This novel composite exhibits excellent electromagnetic-wave absorption properties. The maximum reflection loss for FeCo@C/HRGO reaches −76.6 dB at 16.64 GHz with a thickness of 1.7 mm. The R L below −10 dB reaches 14.32 GHz for a thickness of 1.7–5.0 mm. This confirms that microwave absorption of FeCo@C can be substantially improved upon decoration with HRGO nanosheets.

AB - In this study, an Fe-Co alloy is coated with carbon and decorated on a holey reduced graphene oxide nanosheet (FeCo@C/HRGO) composite. The structure is synthesized using liquid-phase reduction and hydrothermal processes followed by high-temperature calcination. The FeCo@C/HRGO composite is identified and characterized using XRD, XPS, Raman spectroscopy, TEM, and SEM. This novel composite exhibits excellent electromagnetic-wave absorption properties. The maximum reflection loss for FeCo@C/HRGO reaches −76.6 dB at 16.64 GHz with a thickness of 1.7 mm. The R L below −10 dB reaches 14.32 GHz for a thickness of 1.7–5.0 mm. This confirms that microwave absorption of FeCo@C can be substantially improved upon decoration with HRGO nanosheets.

KW - Holey reduced graphene oxide

KW - Magnetic nanoparticles

KW - Microwave absorption

UR - http://www.scopus.com/inward/record.url?scp=85062281454&partnerID=8YFLogxK

U2 - 10.1016/j.jcis.2019.02.035

DO - 10.1016/j.jcis.2019.02.035

M3 - 文章

C2 - 30844567

AN - SCOPUS:85062281454

SN - 0021-9797

VL - 544

SP - 188

EP - 197

JO - Journal of Colloid and Interface Science

JF - Journal of Colloid and Interface Science

ER -

Enhanced microwave-absorption with carbon-encapsulated Fe-Co particles on reduced graphene oxide nanosheets with nanoscale-holes in the basal plane

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this