Polyaniline/Fe₃O₄-RGO Nanocomposites for Microwave Absorption

Reduced Graphene Oxide/Fe3O4/Polyaniline Ternary Composites as a Superior Microwave Absorber in the Shielding of Electromagnetic Pollution

“…However, the disappearance of the RGO diffraction peak (∼23 0 ) in RGO/Fe 3 O 4 is attributed to the low crystallinity of RGO compared to Fe 3 O 4 and the high degree of exfoliation of RGO. , The additional peaks of Fe 3 O 4 /PANI and RGO/Fe 3 O 4 /PANI at ∼15° ( d 011 = 0.59 nm), 20.4° ( d 020 = 0.44 nm), and 24.9° ( d 200 = 0.36 nm) show the presence of semi-crystalline peaks of PANI and its emeraldine salt . Further, disappearance of the (002) reflection plane in RGO and merging of the planes with Fe 3 O 4 and polyaniline demonstrated good interfacial interaction between RGO, Fe 3 O 4 , and PANI. , …”

“… 47 Further, disappearance of the (002) reflection plane in RGO and merging of the planes with Fe 3 O 4 and polyaniline demonstrated good interfacial interaction between RGO, Fe 3 O 4 , and PANI. 44 , 65 …”

“…47 Further, disappearance of the (002) reflection plane in RGO and merging of the planes with Fe 3 O 4 and polyaniline demonstrated good interfacial interaction between RGO, Fe 3 O 4 , and PANI. 44,65 Raman Analyses. Raman analyses of RGO, RGO/Fe 3 O 4 , Fe 3 O 4 /PANI, and RGO/Fe 3 O 4 /PANI have been carried out, and the corresponding findings are displayed in Figure 4.…”

Recent advancements in the electromagnetic interference shielding performance of nanostructured materials and their nanocomposites: a review

“…Studies were conducted on several nanomaterials, such as ferromagnetic element nanoalloys, metal oxides, ferrites and their polymers and ICP-based nanocomposites in EMI shielding applications. 276–405 The choice of magnetic materials-filled ICP nanocomposites in EMI shielding applications is mainly guided by the dielectric loss, magnetic loss and impedance matching of the component(s) of the material(s) under investigation. It provides a combination of magnetic nanoparticles and ICPs that account for its additionally reduced weight, cost, enhanced flexibility and corrosion resistance, tuneability conductivity and tailorable permeability.…”

“…The encapsulation of γ-Fe 2 O 3 -decorated RGO in PANI core–shell tubes was also studied for microwave absorption purposes. 329 In addition, Ni/PANI/RGO (3.5 mm, 8–12 GHz), 330 Fe 3 O 4 /PANI/epoxy, 331 RGO/PPy nanotube/Fe 3 O 4 , 332 polyaniline/Fe 3 O 4 (10 wt%)–RGO (10 wt%), 333 Fe 3 O 4 –RGO nanomaterials with PEDOT, 334 and Fe 2 O 3 -decorated RGO–polyaniline (1 wt%)/PVDF 335 ternary composites also revealed enhanced microwave absorption properties. According to Lee et al , 336 the EMI SE performance of a flexible 3D graphene–CNT–Fe 2 O 3 hetero-nanostructure film could result in more reflection, absorption and scattering on the surfaces of the multilayered and interconnected 3D heterostructure in the range of 8.0 to 12.0 GHz.…”