Polypyrrole-based NanoComposite with excellent absorption properties by facile approach

Polymer matrix-based nano absorbers are desirable to enhance, tune, and control absorption processes as the subwavelength-scale constituent not only improve the magnetic and electric responses but also yield impedance matching conditions. The unique morphology of mesoporous carbon can lead to novel functionalities when combined with highly absorbing fillers which traps the incident electromagnetic wave into specific blocks and then converts it to enhanced electric and magnetic responses, such as absorption manipulation of electromagnetic radiation and emission. Here we improve and control the relative interaction between excitations and responsibility arising from polymer matrix-based nano absorbers. The experimental results indicate that the absorption coefficients and reflectance loss are increased across the measurement frequency range. The ability to obtain, tune, and control simultaneously permittivity and permeability opens new capabilities for advanced manipulation and processing of electromagnetic wave on the nanoscale absorbers and even for double negative materials. •NiFe nanoparticles were embedded into MC without further impurities.•Polypyrrole-coated NFMC with particular structural characteristic were prepared.•Polypyrrole-coated NFMC possesses a good impedance matching.•Polypyrrole-coated NFMC exhibits a high reflection loss.