期刊
JOURNAL OF COLLOID AND INTERFACE SCIENCE
卷 544, 期 -, 页码 188-197出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jcis.2019.02.035
关键词
Holey reduced graphene oxide; Magnetic nanoparticles; Microwave absorption
资金
- National Natural Science Foundation of China [51672222]
- Spaceflight Innovation Foundation of China
- Spaceflight Foundation of China [2014-HT-XGD]
- Fundamental Research Funds for the Central Universities [3102017zy048]
- Natural Science Basic Research Plan in Shaanxi Province of China [2018JQ5160]
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. (C) 2019 Elsevier Inc. All rights reserved.
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