Multifunctional Film Assembled from N-Doped Carbon Nanofiber with Co–N4–O Single Atoms for Highly Efficient Electromagnetic Energy Attenuation

Abstract

Highlights Asymmetrically coordinated Co–N4–O sites on N-doped carbon nanofiber were prepared. Co–O coordination along the axial direction led to enhanced dielectric polarization loss. Multifunctional films were developed for practical application in harsh environments.

Keywords

• Co single atoms
• Asymmetric coordination structure
• Axial oxygen coordination
• Electromagnetic wave absorption
• Multifunctional film