Carbonized zeolitic imidazolate framework-67/polypyrrole: A magnetic-dielectric interface for enhanced microwave absorption properties.

Due to the high electromagnetic interference (EMI) pollution, electromagnetic wave (EMW) absorption materials have risen as an important research area in material science and technology. Herein, the prepared carbonized ZIF-67 (CZIF) nanocomposites with polypyrrole (PPy) showed significantly enhanced electromagnetic wave absorption performance. The CZIF-PPy nanocomposites were prepared by the solvothermal and in-situ polymerization method. The CZIF-PPy nanocomposites possess a decent reflection loss (RL) value between the 2-18 GHz frequency range. The enhanced surface properties and magnetic-dielectric interfacial polarization plays an important role to achieve higher reflection loss and broader absorption bandwidth. This work explains the importance of magnetic-dielectric interface and may lead to design of more advanced hybrid electromagnetic wave absorption systems.
Competing Interests: Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
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