Synthesis of nitrogen-doped polyaniline-derived carbon/Ni3Fe nanocomposites as high-performance microwave absorbers
Source abstract
Abstract
Polyaniline-derived carbon (PDC) and Ni 3 Fe composites for electromagnetic wave (EMW) absorption were prepared through in-situ polymerization and carbonization. Using polyaniline as carbon source not only realized the doping of carbon with nitrogen, but also allowed homogeneous dispersion of Ni 3 Fe nanoparticles to achieve multiple reflection interfaces. The content of Ni 3 Fe can be used to control the impedance matching of the composites, while the dual loss mechanism of dielectric loss and magnetic loss was realized to promote EMW absorption performance. The polyaniline-derived carbon/Ni 3Fe (PDC/Ni 3Fe) nanocomposite with optimized composition had a minimum reflection loss (RL) of − 80.91 dB. A maximum effective bandwidth of 6.10 GHz (11.90 −18.00 GHz) was achieved, while the thickness is 2.12 mm.
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Research context
OpenAlex topics: Electromagnetic wave absorption materials · Advanced Antenna and Metasurface Technologies · Metamaterials and Metasurfaces Applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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