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

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

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

Afiliación

Li S; Research & Development Institute in Shenzhen, Northwestern Polytechnical University, Xi'an 710072, PR China; The MOE Key Laboratory of Material Physics and Chemistry under Extrodinary Conditions, Ministry of Education, School of Science, Northwestern Polytechnical University, Xi'an 710072, PR Ch
Huang Y; Research & Development Institute in Shenzhen, Northwestern Polytechnical University, Xi'an 710072, PR China; The MOE Key Laboratory of Material Physics and Chemistry under Extrodinary Conditions, Ministry of Education, School of Science, Northwestern Polytechnical University, Xi'an 710072, PR Ch
Ling D; Research & Development Institute in Shenzhen, Northwestern Polytechnical University, Xi'an 710072, PR China; The MOE Key Laboratory of Material Physics and Chemistry under Extrodinary Conditions, Ministry of Education, School of Science, Northwestern Polytechnical University, Xi'an 710072, PR Ch
Zhang N; Research & Development Institute in Shenzhen, Northwestern Polytechnical University, Xi'an 710072, PR China; The MOE Key Laboratory of Material Physics and Chemistry under Extrodinary Conditions, Ministry of Education, School of Science, Northwestern Polytechnical University, Xi'an 710072, PR Ch
Zong M; Research & Development Institute in Shenzhen, Northwestern Polytechnical University, Xi'an 710072, PR China; The MOE Key Laboratory of Material Physics and Chemistry under Extrodinary Conditions, Ministry of Education, School of Science, Northwestern Polytechnical University, Xi'an 710072, PR Ch
Qin X; Research & Development Institute in Shenzhen, Northwestern Polytechnical University, Xi'an 710072, PR China; The MOE Key Laboratory of Material Physics and Chemistry under Extrodinary Conditions, Ministry of Education, School of Science, Northwestern Polytechnical University, Xi'an 710072, PR Ch
Liu P; Research & Development Institute in Shenzhen, Northwestern Polytechnical University, Xi'an 710072, PR China; The MOE Key Laboratory of Material Physics and Chemistry under Extrodinary Conditions, Ministry of Education, School of Science, Northwestern Polytechnical University, Xi'an 710072, PR Ch

J Colloid Interface Sci ; 544: 188-197, 2019 May 15.

Article en En | MEDLINE | ID: mdl-30844567

ABSTRACT

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 -76.6â¯dB at 16.64â¯GHz with a thickness of 1.7â¯mm. The RL below -10â¯dB reaches 14.32â¯GHz for a thickness of 1.7-5.0â¯mm. This confirms that microwave absorption of FeCo@C can be substantially improved upon decoration with HRGO nanosheets.

Palabras clave

Holey reduced graphene oxide; Magnetic nanoparticles; Microwave absorption

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