Abstract
A facile way has been investigated to fabricate the phenolic-based carbon foam (PCF) modified with the unique three-dimensional structure of graphene oxide/SiO2 (GO/SiO2) hybrid nanomaterials which were obtained via in-situ preparation method. Results showed that the carbon foam sample modified by 1.5 wt% GO/SiO2 hybrid nanomaterial with a particle size of 80 nm had an electromagnetic interference shielding effectiveness (EMI SE) up to ∼50 dB in X-band only at a thickness of 10 mm. This phenomenon may be ascribed to stable porous structure and nanoparticles assisting in attenuating the electromagnetic wave transmittance. The result enables their application in lightweight electromagnetic protection devices.
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