Synthesis and microwave absorption properties of reduced graphene oxide-magnetic porous nanospheres-polyaniline composites

Synthesis, characterization, interfacial interactions, and properties of reduced graphene oxide/Fe3O4/polyaniline nanocomposites

“…The overall etching thickness is about 30 nm, so it can be concluded that the thickness of PANI cover is about 30 nm. The binding energy at 711.1 and 724.2 eV after etching are attributed to the characteristic doublets of Fe 2p 3/2 and Fe 2p 1/2 , respectively, of the interface of GMP, as shown in Fig. d.…”

Quantifying structural and electromagnetic interference (EMI) shielding properties of thermoplastic polyurethane–carbon nanofiber/magnetite nanocomposites

“…In recent years, combination of magnetic materials with both various forms of carbon materials such as carbon fiber, carbon nanotubes (CNTs), graphite and graphene derivatives, and carbon nanofiber (CNF) and also with different polymers by regarding the composite approaches have been studied to improve the shielding efficiency (SE) and extend the processability and applications of such materials [9][10][11][12][13][14]. Furthermore, a few studies have also been reported on the electromagnetic properties of polymer composites including of carbon/ferrite fillers as functional filler and conductive polymers as matrix [15,16].…”

“…Soft and hard ferrites are the most extensively studied magnetic materials for the electromagnetic interference (EMI) shielding, specifically microwave or radar absorbing, applications [1][2][3][4][5][6][7][8]. The unique structural and physical features of single or mixed-structure ferrites make them proper materials for absorbing of electromagnetic waves in the relatively high-frequency region (8)(9)(10)(11)(12)(13)(14)(15)(16)(17)(18) which is an important range for radar absorbing and military applications. In recent years, combination of magnetic materials with both various forms of carbon materials such as carbon fiber, carbon nanotubes (CNTs), graphite and graphene derivatives, and carbon nanofiber (CNF) and also with different polymers by regarding the composite approaches have been studied to improve the shielding efficiency (SE) and extend the processability and applications of such materials [9][10][11][12][13][14].…”

Microwave absorption properties of lightweight absorber based on Fe50Ni50-coated poly(acrylonitrile) microspheres and reduced graphene oxide composites

“…Graphene is a single layer of carbon atoms in a closely packed honeycomb two-dimensional lattice, and has attracted tremendous scientific attention as microwave absorption materials due to its outstanding properties: lightweight, high specific surface area, stable structure and excellent electronic conductivity [20,21]. Besides, the residual defects and functional groups in chemically reduced graphene are beneficial to impedence matching, defect polarization relaxation and electric dipole polarization, which are all in favor of electromagnetic wave penetration and absorption [22].…”