Carbon Nanofibers Coated with Mill88A/MoSe₂Membranes for Electromagnetic Wave Absorption

Carbon fiber (CF) nanomaterials have attracted widespread attention for their rich conductive network, excellent dielectric properties, and flexible preparation of thin-film materials. While excellent dielectric performance is sufficient to provide high dielectric loss, the imbalance of electromagnetic parameters limits its performance as an absorption. Therefore, a (Mill88A/MoSe₂)@CF fiber membrane (MCM) with a core–shell structure was carefully manufactured, exhibiting an adjustable microwave absorption performance. When the thickness is 2.7 mm, the effective absorption bandwidth (EAB) reaches up to 7.74 GHz, and the excellent absorption performance is attributed to the electromagnetic synergy effect inside the material, which improves impedance matching. This study provides an approach for the preparation of high-absorption-bandwidth fiber film absorbers.