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A New Broadband and Strong Absorption Performance FeCO3/RGO Microwave Absorption Nanocomposites

National Key Laboratory for Remanufacturing, Academy of Army Armored Forces, Beijing 100072, China
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Materials 2019, 12(13), 2206; https://doi.org/10.3390/ma12132206
Received: 30 May 2019 / Revised: 1 July 2019 / Accepted: 5 July 2019 / Published: 9 July 2019
(This article belongs to the Special Issue Carbon Based Functional Microwave Shields)
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Abstract

A novel composite of FeCO3 nanoparticles, which are wrapped with reduced graphene oxide (RGO), is fabricated using a facile one-spot solvothermal method. The composite consists of a substrate of RGO and FeCO3 nanoparticles that are embedded in the RGO layers. The experimental results for the FeCO3/RGO composite reveal a minimum refection loss (−44.5 dB) at 11.9 GHz when the thickness reaches 2.4 mm. The effective bandwidth is 7.9 GHz between 10.1 and 18 GHz when the refection loss was below −10 dB. Compared to GO and RGO, this type of composite shows better microwave absorption thanks to improved impedance matching. Overall, this thin and lightweight FeCO3/RGO composite is a promising candidate for absorbers that require both strong and broad absorption. View Full-Text
Keywords: FeCO3/RGO; solvothermal method; formation mechanism; microwave absorption properties FeCO3/RGO; solvothermal method; formation mechanism; microwave absorption properties
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Huang, W.; Wei, S.; Wang, Y.; Wang, B.; Liang, Y.; Huang, Y.; Xu, B. A New Broadband and Strong Absorption Performance FeCO3/RGO Microwave Absorption Nanocomposites. Materials 2019, 12, 2206.

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