articleAdvanced Functional MaterialsFeb 16, 2026HYBRID OA

Hierarchical Cellulose/MXene Aerogel Films with Coral‐Like Polyaniline Skin for Absorption‐Led Broadband EMI Shielding

Tianjin University of Science and Technology · Tianjin University of Technology · +2 more institutions

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Abstract

ABSTRACT Lightweight, absorption‐dominant electromagnetic interference (EMI) shielding films are critical for wearable and portable electronics. However, achieving strong attenuation while maintaining porous architectures and continuous conductive pathways remains challenging. We present a biomimetic hierarchical design in regenerated cellulose/MXene aerogel films featuring a surface‐confined, coral‐like polyaniline (PANI) skin. This structure is created by integrating molten salt hydrate processing with interfacially confined oxidative polymerization. The result is a dual‐interface skin–core architecture: polarization‐active interfaces are concentrated at the outer surface, while a MXene‐rich, porous, and…

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