Issue 30, 2024

Carbon–Ni6Co3Fe1 alloy hybrid foil for electromagnetic wave interference shielding in X-band and extremely low frequencies

Abstract

Carbon-based materials, such as graphite foil, are widely recognized as excellent electromagnetic interference shielding materials due to their outstanding electrical conductivity, lightweight nature, and chemical inertness. While these materials serve as effective shields at high frequencies, their shielding performance for electromagnetic waves in the extremely low frequency regime is significantly diminished. In this manuscript, we propose an approach to fabricate carbon-based shielding materials that can be applied over the multiple electromagnetic spectral regions. By electrochemically depositing nickel, cobalt, and iron (NiCoFe) alloy film onto a graphite foil, we achieved a shielding composite covering extremely low and X-band frequencies. The nanostructured NiCoFe alloy film with excellent electrical and magnetic properties enhanced shielding effectiveness in the high-frequency regime by reflection and absorption, whereas extremely-low-frequency magnetic fields were effectively shielded through magnetic flux-shunting mechanisms. The enhanced shielding performance of the NiCoFe/graphite foil was also accompanied by improved thermal and mechanical properties. As our process is facile and scalable, we anticipate that this composite shielding strategy will potentially serve as a promising solution for practical electromagnetic interference shielding applications.

Graphical abstract: Carbon–Ni6Co3Fe1 alloy hybrid foil for electromagnetic wave interference shielding in X-band and extremely low frequencies

Supplementary files

Transparent peer review

To support increased transparency, we offer authors the option to publish the peer review history alongside their article.

View this article’s peer review history

Article information

Article type
Paper
Submitted
22 jún 2024
Accepted
27 jún 2024
First published
28 jún 2024

J. Mater. Chem. C, 2024,12, 11521-11528

Carbon–Ni6Co3Fe1 alloy hybrid foil for electromagnetic wave interference shielding in X-band and extremely low frequencies

J. Lee, Y. S. Cho, D. Rhee, H. Kim, S. Jeon, D. Lee, J. W. Heo, M. Choi, J. H. Seo, J. Soh, I. S. Kim, S. Kim, D. Choi and J. Kang, J. Mater. Chem. C, 2024, 12, 11521 DOI: 10.1039/D4TC02611J

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements