Confinedly tailoring Fe3O4 clusters-NG to tune electromagnetic parameters and microwave absorption with broadened bandwidth

Wang, Xixi; Ma, Tao; Shu, Jin‐Cheng; Cao, Mao‐Sheng

doi:10.1016/j.cej.2017.09.101

Cited by 427 publications

(131 citation statements)

References 43 publications

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“…In our experiments, the enhanced microwave absorption properties of the composites may be due to multicomponent and multiple interfaces in GMP nanocomposite, which generating interface scattering. The interfacial polarization exists in multi‐interfaces in rGO/Fe 3 O 4 /PANI nanocomposite. Simultaneously, the presence of PANI and Fe 3 O 4 reduces the dielectric loss of graphene, and Fe 3 O 4 provides a certain magnetic loss, resulting in a specific match of dielectric loss and magnetic loss, leading to better microwave absorption.…”

Section: Resultsmentioning

confidence: 99%

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

Liu

Zhu

2018

Polymer Composites

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In this study, a ternary reduced graphene oxide/Fe3O4/polyaniline (PANI) (GMP) nanostructure is designed and synthesized via a facile two‐step approach, including synthesis of reduced graphene oxide/Fe3O4 (GM) using solvothermal method and in situ polymerization of PANI on the surface of GM. The structure and morphological of the as‐prepared samples was characterized by X‐ray diffraction, Fourier transform infrared, UV–vis spectra and Transmission Electron Microscope. The results indicated the successful synthesis of GMP composite materials with the Fe3O4 (<30 nm) loaded on the rGO, whose surface covered with PANI. The magnetic properties, redox activity and microwave absorption properties were characterized by vibrating sample magnetometer, cyclic voltammetry, and vector network analyzer. The magnetic properties of GMP composite exhibit superparamagnetic property with a saturation magnetization of 22.88 emu/g. The redox activity of GMP expanding to neutral environment is caused by the interfacial electron transport interaction. The microwave absorption performance of GMP is up to −28.2 dB at 14.4 GHz and the absorption bandwidths below −10 dB are 5.4 GHz (from 12.6 to 18 GHz) with a thickness of 2 mm. This can be attributed to its well‐organized nanoscale morphology, which bringing the impedance matching of the individual components of GMP. POLYM. COMPOS., 40:E1111–E1119, 2019. © 2018 Society of Plastics Engineers

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Section: Resultsmentioning

confidence: 99%

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

Liu

Zhu

2018

Polymer Composites

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“…Synergetic effects between CNT and Fe 3 O 4 are reported, which allows broader effective absorption range and stronger absorption at microwave frequencies owing to the enhanced magnetic loss and compatibility . Exceptionally high shielding values can be reached if Fe 3 O 4 clusters are tuned finely …”

Section: Introductionmentioning

confidence: 95%

Synergy effects in dielectric and thermal properties of layered ethylene vinyl acetate composites with carbon and Fe₃O₄ nanoparticles

Bertasius

Macutkevič

Banys

et al. 2019

J of Applied Polymer Sci

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Properties of layered composites with carbon nanotube (CNT), GnP, Fe3O4 nanoinclusions, and hybrid composites with these nanoinclusions were investigated in the wide frequency range (from 20 Hz to 2 THz). All investigated composites (except with single Fe3O4 inclusions) are above percolation threshold. The strong enhancement of microwave and terahertz radiation absorption is observed in hybrid composites in comparison with composites with single inclusions. The synergy effect is discussed in terms of the complex impedance and the distribution of relaxation times. At low temperatures (below 200 K), the electrical conductivity of all hybrid composites follows the tunneling law model and the lowest potential barrier was estimated for composites with CNT inclusions. The best thermal properties are observed for composites with CNT inclusions. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2020, 137, 48814.

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“…According to the transmission line theory, permittivity, permeability, as well as the diameter of the absorbers, are the remarkable factors affecting the microwave absorption properties [9][10][11][12][13]. Figure 5 shows microwave reflection losses of the CuCr2O4/silicone rubber nanocomposite with various thicknesses.…”

Section: Microwave Absorptionmentioning

confidence: 99%

Preparation and Identification of CuCr2O4 Nanoparticles and Investigation of Its Microwave Absorption Characteristics at X-Band Frequency Using Silicone Rubber Polymeric Matrix

Peymanfar¹,

Khodamoradipoor²

2018

The 3rd International Electronic Conference on Materials Sciences

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Lately, silicone rubber, because of the desirable permittivity on the one hand, and various applications in the implants, membranes, solar cells, sensors, semiconductor devices, high frequency devices, photothermal therapy methods, acoustic metamaterials, and insulator materials on the other hand, has attracted considerable attention. In this research, CuCr2O4 nanoparticles were prepared according to the sol–gel method and then were identified by Fourier transform infrared (FT-IR), X-ray powder diffraction (XRD), field emission scanning electron microscopy (FE-SEM), and vibrating sample magnetometer (VSM). Results showed that monophase crystal structure with identical morphology of CuCr2O4 nanoparticles has been synthesized. Finally, CuCr2O4 nanoparticles and silicone rubber were composited and then microwave absorbing properties of the CuCr2O4/silicone rubber nanocomposite were investigated by vector network analyzer (VNA), exhibiting 48.56 dB microwave attenuation for the CuCr2O4/silicone rubber nanocomposite with 2.6 mm thickness at 10.9 GHz frequency, while having more than 92.99% microwave absorption along the x-band frequency.

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Confinedly tailoring Fe3O4 clusters-NG to tune electromagnetic parameters and microwave absorption with broadened bandwidth

Cited by 427 publications

References 43 publications

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

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

Synergy effects in dielectric and thermal properties of layered ethylene vinyl acetate composites with carbon and Fe₃O₄ nanoparticles

Preparation and Identification of CuCr2O4 Nanoparticles and Investigation of Its Microwave Absorption Characteristics at X-Band Frequency Using Silicone Rubber Polymeric Matrix

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Confinedly tailoring Fe3O4 clusters-NG to tune electromagnetic parameters and microwave absorption with broadened bandwidth

Cited by 427 publications

References 43 publications

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

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

Synergy effects in dielectric and thermal properties of layered ethylene vinyl acetate composites with carbon and Fe3O4 nanoparticles

Preparation and Identification of CuCr2O4 Nanoparticles and Investigation of Its Microwave Absorption Characteristics at X-Band Frequency Using Silicone Rubber Polymeric Matrix

Contact Info

Product

Resources

About

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

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

Synergy effects in dielectric and thermal properties of layered ethylene vinyl acetate composites with carbon and Fe₃O₄ nanoparticles