RGO/BaFe12O19/Fe3O4 nanocomposite as microwave absorbent with lamellar structures and improved polarization interfaces

Jiao, Shangqing; Wu, Mingzai; Yu, Xinxin; Hu, Haibo; Bai, Zhenghe; Dai, Peng; Jiang, Tongtong; Hong, Bo; Li, Guang

doi:10.1016/j.materresbull.2018.08.014

Cited by 29 publications

(5 citation statements)

References 48 publications

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“…The reflective loss of GO almost shows no change because it has a destroyed hexagonal graphite frame construction and low content. The change of CeFe 2 O 4 /GO is higher than that of other materials, which indicates that the absorbing ability of CeFe 2 O 4 /GO is best . In Figure b, it is worth to note that the | Z in / Z 0 | value of CeFe 2 O 4 /GO is closer to 1.0, indicating that the CeFe 2 O 4 /GO composite will absorb more EM waves when the same-intensity EM waves are incident on the material’s surface, so it has a better absorption effect on EM waves.…”

Section: Resultsmentioning

confidence: 90%

CeFe₂O₄ Nanoparticle/Graphene Oxide Composites with Synergistic Superhydrophobicity and Microwave Absorption

Guo

Chen

et al. 2022

ACS Appl. Nano Mater.

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High-performance superhydrophobic electromagnetic (EM) wave-absorbing materials are critically significant for their practical application in harsh environments, especially in high-humidity conditions. Herein, a CeFe2O4/GO hybrid was successfully constructed via a facile hydrothermal method, which was then combined with polydimethylsiloxane (PDMS) to achieve the synergistic effect of outstanding EM wave absorption ability and superhydrophobicity. The structure and composition of the prepared hybrid were confirmed with the help of scanning electron microscopy, X-ray diffraction, X-ray photoelectron spectroscopy, and thermogravimetric analysis. Meanwhile, a vector network analyzer was used for assessing the microwave absorbing performance of the fabricated composite. Eventually, the CeFe2O4/GO hybrid exhibited a minimum reflection loss (RL) of −57 dB at 15.2 GHz with an adequate absorption bandwidth of 5.2 GHz. Furthermore, the superhydrophobic PDMS/CeFe2O4/GO nanocomposite was synthesized using a facile mechanical mixing method, and the water contact angle of the nanocomposite with a ratio of 5:1 (CeFe2O4/GO/PDMS) could reach 164°. Simultaneously, the nanocomposite shows a stable EM wave absorption ability that the PDMS/CeFe2O4/GO achieved the minimum RL of −52 dB with an absorption bandwidth of 2.1 GHz. This work provides a feasible way to deal with the EM pollution in the outdoor environment, which may open up viable prospects for developing multifunctional microwave-absorbing materials.

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Section: Resultsmentioning

confidence: 90%

CeFe₂O₄ Nanoparticle/Graphene Oxide Composites with Synergistic Superhydrophobicity and Microwave Absorption

Guo

Chen

et al. 2022

ACS Appl. Nano Mater.

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“…Garg et al, [14] prepared strontium hexaferrite particles using auto combustion method where the minimum reflection loss reaches -14.44 dB at 9.37 GHz for effective thickness of 2.6 mm. Similarly, the RGO/BaFe12O19/Fe3O4 composites were developed by Jiao et al, [4] shows optimized results at thickness of 1.8 mm having -10 dB bandwidth of 5.68 GHz and reflection loss reach -46.04 dB at 15.6 GHz. These results are 45% and 5% lower than the M4 sample for the same thickness, respectively.…”

Section: Figure 2 X-ray Powder Diffraction Patterns Of the Samples Sy...mentioning

confidence: 94%

“…Therefore, in recent years, the studies on the microwave absorption materials (MAMs) have become a hot research topic. The recent studies mainly focused on development material with advantages such as light weight, thin thickness, high efficiency absorption and broadened absorption band [4][5][6][7]. For microwave absorption materials, morphology plays an important role.…”

Section: Introductionmentioning

confidence: 99%

Study on Microwave Absorption Performance of Submicron SrFe12O19 Particles Prepared by Hydrothermal Method

Nga,

Quang,

Loan

et al. 2024

MaP

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: Strontium hexaferrite (SrFe12O19) materials were synthesized through the hydrothermal method with conditions at R= (Fe3++ Sr2+)/(OH ̶) ratio of 2 to 4 (R ratio of 1/2, 1/3 and 1/4 were, respectively abbreviated to M2, M3 and M4). R has been examined by employing Fe(NO3)3 and Sr(NO3)2 as the initial materials. The effects of R ratio on the structure, particle size, magnetic and microwave-absorbing properties of the samples were studied. The coercivity and saturation magnetization of M4 sample reach 5.2 kOe and 58.7 emu/g, respectively. The optimal reflection loss of the M4 at the thickness of 1.5 mm reached a value as large as - 48.27 dB in the frequency range of 2 to 18 GHz. The improvement in microwave absorption performance of M4 sample compared to M2 and M3 was mainly resulted from the increased magnetic properties with increasing R ratio.

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“…Research by Almessiere et al [21] scrutinized the magnetic properties of Nd-doped BaFe 12 O 19 , while Goel Shivanshu et al [13] enhanced the magnetic and dielectric losses of BaFe 12 O 19 by incorporating rGO, tailored for microwave applications. The high-frequency behavior of a BaFe 12 O 19 /rGO, /Fe 3 O 4 composite was studied by Jiao et al [22]. Hu et al have synthesized a BaFe 12 O 19 @MnO 2 core/shell composite, achieving improved dielectric loss and electromagnetic wave absorption through the addition of MnO 2 nanostructures [23].…”

Section: Introductionmentioning

confidence: 99%

Influence of GO content on the optical, magnetic and dielectric properties of the BaFe₁₂O₁₉/GO nanocomposites

Mehrabani,

Ghazi,

Izadifard

2024

Phys. Scr.

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In this research, BaFe12O19/GO (GO:10%, 20%, 40%, 50%) nanocomposites were synthesized by sol-gel auto combustion method and their structural, optical, magnetic and dielectric properties were investigated. The X-ray diffraction results for all nanocomposites validate the formation of a hexagonal phase of Ba hexaferrite. Measurements of the magnetic hysteresis loop for all composites were conducted at room temperature using a vibrating sample magnetometer. By increasing the percentage of GO, a decrease in the saturation magnetization was observed for the samples. The band gap also decreased with an increase in the percentage of GO. The dielectric constant, loss function and conductivity were also measured for the samples. The nanocomposite sample of BFO-40GO exhibited the highest observed value for real part Modulus.

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RGO/BaFe12O19/Fe3O4 nanocomposite as microwave absorbent with lamellar structures and improved polarization interfaces

Cited by 29 publications

References 48 publications

CeFe₂O₄ Nanoparticle/Graphene Oxide Composites with Synergistic Superhydrophobicity and Microwave Absorption

CeFe₂O₄ Nanoparticle/Graphene Oxide Composites with Synergistic Superhydrophobicity and Microwave Absorption

Study on Microwave Absorption Performance of Submicron SrFe12O19 Particles Prepared by Hydrothermal Method

Influence of GO content on the optical, magnetic and dielectric properties of the BaFe₁₂O₁₉/GO nanocomposites

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RGO/BaFe12O19/Fe3O4 nanocomposite as microwave absorbent with lamellar structures and improved polarization interfaces

Cited by 29 publications

References 48 publications

CeFe2O4 Nanoparticle/Graphene Oxide Composites with Synergistic Superhydrophobicity and Microwave Absorption

CeFe2O4 Nanoparticle/Graphene Oxide Composites with Synergistic Superhydrophobicity and Microwave Absorption

Study on Microwave Absorption Performance of Submicron SrFe12O19 Particles Prepared by Hydrothermal Method

Influence of GO content on the optical, magnetic and dielectric properties of the BaFe12O19/GO nanocomposites

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Product

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CeFe₂O₄ Nanoparticle/Graphene Oxide Composites with Synergistic Superhydrophobicity and Microwave Absorption

CeFe₂O₄ Nanoparticle/Graphene Oxide Composites with Synergistic Superhydrophobicity and Microwave Absorption

Influence of GO content on the optical, magnetic and dielectric properties of the BaFe₁₂O₁₉/GO nanocomposites