4.5 Article

Transferring A4 Paper to FeNi3/NiCx Coated Carbon Skeleton for Efficient Absorption of Multiband Microwave

Journal

METALS
Volume 12, Issue 5, Pages -

Publisher

MDPI
DOI: 10.3390/met12050848

Keywords

microwave absorption; multiband; dipole polarization; impedance matching; A4 typing paper

Funding

  1. Surface Project of Local Development in Science and Technology Guided by Central Government [2021ZYD0041]
  2. Natural Science Foundation of Hunan Province [2021JJ40175]

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In this study, A4 typing paper was used to manufacture FeNi3 and NiCx coated carbon skeleton with outstanding multiband absorption ability. The product shows great potential for multiband absorption of electromagnetic waves.
Herein, A4 typing paper was used as a novel source to manufacture FeNi3 and NiCx coated carbon skeleton via facile routes. The product was examined for its ability to absorb electromagnetic emission which can be a health hazard. The impact of precursor concentration on the final electromagnetic wave absorption of samples was evaluated; the composite prepared under suitable concentration possesses outstanding multiband absorption ability of -34.64 dB and -26.7 dB at 2.32 GHz and 17.2 GHz, respectively, together with an ultra-wide effective absorption bandwidth of 9.58 GHz at only 3.9 mm. The strong dipole polarization and broad frequency range of preferable impedance matching, along with the coupling of other auxiliary mechanisms, are responsible for this excellent property. The as-prepared absorber has great potency for multiband absorption of electromagnetic waves.

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