Self-Assembly Magnetic FeCo Nanostructures on Oxide Graphene for Enhanced Microwave Absorption

New electromagnetic microwave absorption materials not only require strong absorption capacity and wide absorption frequency but also lightweight and thin thickness. “Wide, strong, light, and thin” is the overall goal of the current research on electromagnetic microwave absorption materials. Therefo...

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Bibliographic Details
Published in:Journal of electronic materials 2022-06, Vol.51 (6), p.2856-2866
Main Authors: Ding, Juan, Cheng, Ligang, Zhao, Weixu
Format: Article
Language:English
Subjects:
Alloys
Bandwidths
Characterization and Evaluation of Materials
Chemistry and Materials Science
Electronics and Microelectronics
Graphene
Impedance matching
Instrumentation
Materials Science
Microwave absorbers
Microwave absorption
Military equipment
Nanocomposites
Nanoparticles
Optical and Electronic Materials
Original Research Article
Permeability
Self-assembly
Solid State Physics
Thickness
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Summary:New electromagnetic microwave absorption materials not only require strong absorption capacity and wide absorption frequency but also lightweight and thin thickness. “Wide, strong, light, and thin” is the overall goal of the current research on electromagnetic microwave absorption materials. Therefore, both human survival and the need for military equipment are encouraging researchers to develop new high-performance electromagnetic microwave absorption materials. A FeCo/GO composite has been successfully fabricated by a two-step method. Various devices were applied to separately measure the structural characteristics, microscopic morphology, and properties of the composite. The results demonstrate that the electromagnetic microwave absorption of the FeCo/GO composite is excellent. At a frequency of 10.7 GHz, the maximum reflection loss (RL max ) value is − 39.2 dB, the effective bandwidth of RL max less than − 10 dB is 3.8 GHz (8.6–12.4 GHz), and the thickness is 5.0 mm. The electromagnetic microwave absorption performance and impedance matching of the FeCo/GO composite is superior to that of single materials, which can be explained in detail by the electromagnetic microwave absorption mechanism. Thus, it can be observed that the FeCo/GO composite is a promising electromagnetic microwave absorber in future high-performance materials.
ISSN:0361-5235
1543-186X
DOI:10.1007/s11664-022-09552-4