Facile design of 3D hierarchical NiFe2O4/N-GN/ZnO composite as a high performance electromagnetic wave absorber

Wang, Yan; Gao, Xiang; Wu, Xinming; Zhang, Wenzhi; Luo, Chunyan; Liu, Panbo

doi:10.1016/j.cej.2019.121942

Cited by 211 publications

(61 citation statements)

References 54 publications

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“…Moreover, the structural defects, nitrogen-doping and residual group of PG can act as polarization center to generate dipole polarization. 19,20 In addition, the long line tail of plot for PG/CoFe 2 O 4 further conrms the conductive loss due to introduction of PG. 40 The magnetic loss is composed of hysteresis loss, domainwall resonance, exchange resonance, eddy current loss and natural resonance.…”

Section: Resultsmentioning

confidence: 96%

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Tailored design of p-phenylenediamine functionalized graphene decorated with cobalt ferrite for microwave absorption

Cui

Liu

et al. 2020

RSC Adv.

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Section: Resultsmentioning

confidence: 96%

“…16,17 Furthermore, functional groups containing nitrogen introduced into graphene can produce defect and dipole polarization, which will conduce to MA. [18][19][20] So it may have potential to act as a new-style dielectric material used in MA eld by loading with magnetic component.…”

Section: Introductionmentioning

confidence: 99%

Tailored design of p-phenylenediamine functionalized graphene decorated with cobalt ferrite for microwave absorption

Cui

Liu

et al. 2020

RSC Adv.

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“…Benefitting from the uniform hybridization between sea-islandlike McM and rGO layers, McM@rGO-600 displays an improvement in dielectric dissipation in the range of 9-14 GHz as described by dielectrical dissipation factors (tan δε) in Figure 5(c). For the situation of complex permeabilities (Figure 5d and e), McM@rGO-400 presents a comparable permeability but few abilities in magnetic loss due to the lossless NiFe 2 O 4 [49]. The magnetic loss factor (tan δμ) in Figure 5(f) demonstrates a strong magnetic loss in the range of 11-14 GHz, especially for McM@rGO-600.…”

Section: Considering the Intrinsic Ferromagnetism Of Nife 2 O 4 Fenmentioning

confidence: 96%

Improved impedance matching by multi-componential metal-hybridized rGO toward high performance of microwave absorption

Xie

Jiang

et al. 2021

Nanotechnology Reviews

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Microwave-absorbing materials with good microwave absorption performance are of great interest for military applications and human health, which is threatened by electromagnetic radiation pollution. Herein, the design and synthesis of multi-componential metal-hybridized graphene composites via freeze drying and pyrolysis of ferrocene hydrazone complex precursor are reported. Various magnetic nanoparticles are loaded on reduced graphene oxide (rGO) via controlling their pyrolysis temperature. The complex electromagnetic parameters of these hybrids are therefore regulated by the hybrid components. Among them, rGO hybridized by the sea-island-like Fe2O3/Fe3O4/FeNi3 multi-componential metals shows a good balance of dielectric and magnetic constants. Thus, the improved impedance matching with free space brings about a superior electromagnetic wave absorption performance, especially on the effective absorption bandwidth. The minimum reflection loss (RL) of the hybrids is as low as −40.3 dB at 11 GHz with the RL bandwidth of −10 dB being 4.55 GHz (from 9.25 to 13.8 GHz).

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“…Materials such as carbon materials [ 4 , 5 , 6 ], carbonyl iron [ 7 , 8 , 9 ], and various ferrite materials [ 10 , 11 , 12 ] are mainly studied as absorbers because they are light, thin, and small but have a superior EM wave absorption performance. As for a magnetic absorber, soft magnetic spinel ferrite has mainly been studied and shown to modify the EM wave performance by substituting one or more divalent metal ions like Mn [ 13 , 14 , 15 ], Co [ 16 , 17 , 18 ], Ni [ 19 , 20 , 21 ], Cu [ 22 , 23 , 24 ], and Mg [ 25 , 26 ] at the site of Fe atoms.…”

Section: Introductionmentioning

confidence: 99%

Fabrication of Electrospun Ni0.5Zn0.5Fe2O4 Nanofibers Using Polyvinyl Pyrrolidone Precursors and Electromagnetic Wave Absorption Performance Improvement

Jang

Kim

et al. 2021

Polymers

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Ni0.5Zn0.5Fe2O4 nanofibers with an average diameter of 133.56 ± 12.73 nm were fabricated by electrospinning and calcination. According to our thermogravimetric—differential thermal analysis and X-ray diffraction results, the calcination temperature was 650 °C. The microstructure, crystal structure, and chemical composition of the nanofibers were observed using field-emission scanning electron, X-ray diffraction, and energy-dispersive X-ray spectroscopy. Commercial particle samples and samples containing 10 wt% and 20 wt% nanofibers were fabricated, and the electromagnetic properties were analyzed with a vector network analyzer and a 7.00 mm coaxial waveguide. Regardless of the nanofiber content, Ni0.5Zn0.5Fe2O4 was dominantly affected by the magnetic loss mechanism. Calculation of the return loss based on the transmission line theory confirmed that the electromagnetic wave return loss was improved up to −59.66 dB at 2.75 GHz as the nanofiber content increased. The absorber of mixed compositions with Ni0.5Zn0.5Fe2O4 nanofibers showed better microwave absorption performance. It will be able to enhance the performance of commercial electromagnetic wave absorbers of various types such as paints and panels.

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Facile design of 3D hierarchical NiFe2O4/N-GN/ZnO composite as a high performance electromagnetic wave absorber

Cited by 211 publications

References 54 publications

Tailored design of p-phenylenediamine functionalized graphene decorated with cobalt ferrite for microwave absorption

Tailored design of p-phenylenediamine functionalized graphene decorated with cobalt ferrite for microwave absorption

Improved impedance matching by multi-componential metal-hybridized rGO toward high performance of microwave absorption

Fabrication of Electrospun Ni0.5Zn0.5Fe2O4 Nanofibers Using Polyvinyl Pyrrolidone Precursors and Electromagnetic Wave Absorption Performance Improvement

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