Synthesis, characterization and microwave absorption of MXene/NiFe2O4 composites

Qiu, Fan; Wang, Zhanyong; Liu, Min; Wang, Zemin; Ding, Songlin

doi:10.1016/j.ceramint.2021.05.194

Cited by 45 publications

(10 citation statements)

References 42 publications

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“…As shown in Figure c,d, however, RL min is only −15.0 dB at 8.7 GHz and the EAB is 3.9 GHz at 3.0 mm for NiFe 2 O 4 particles. In addition, the as-obtained 2D porous NiFe 2 O 4 exhibits superior absorbing properties compared with many nickel ferrites in the literature, as summarized in Table . − These results indicate that the unique 2D porous structure contributes a lot to such improved absorbing properties.…”

Section: Resultsmentioning

confidence: 76%

General Synthesis of Two-Dimensional Porous Metal Oxides/Hydroxides for Microwave Absorbing Applications

Chen

et al. 2021

Inorg. Chem.

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Metal oxides/hydroxides with a two-dimensional (2D) porous structure have extensive applications in catalysis, microwave absorption, and energy storage fields due to their large specific surface areas, massive exposed active sites, and good structural integrities. Herein, a general surfactant-assisted vapor diffusion–deposition self-assembly method is developed to synthesize various 2D porous metal oxides/hydroxides. Benefiting from the structure-directing effect of surfactants and the precise tuning of nucleation and growth process that results from this vapor diffusion–deposition strategy, a 2D porous structure is constructed. To explore the advantages of such 2D porous structure, electromagnetic characteristics and absorbing properties of as-obtained materials are investigated. The minimum reflection loss (RL) of 2D porous NiFe2O4 is −23.1 dB at 6.4 GHz, and the effective absorption bandwidth (EAB) is 5.1 GHz. However, the minimum RL is only −15.0 dB at 8.7 GHz and the EAB is 3.9 GHz for NiFe2O4 particles. In addition, the as-obtained 2D porous NiFe2O4 exhibits superior absorbing properties compared with many previously reported nickel ferrites. Furthermore, the microwave absorbing mechanism of 2D porous NiFe2O4 is investigated.

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Section: Resultsmentioning

confidence: 76%

General Synthesis of Two-Dimensional Porous Metal Oxides/Hydroxides for Microwave Absorbing Applications

Chen

et al. 2021

Inorg. Chem.

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“…Absorbers are estimated by their dielectric permittivity (ε* = ε′ – jε ″) and magnetic permeability (μ* = μ′ – jμ ″), where ε′ indicates material’s ability to electric store energy, μ′ represents the magnetic storage ability, ε″ and μ″ indicates the dissipation capability. , The loss tangent (tan δ) can be calculated by using the formula tan δε = ε″/ε′ or tan δμ = μ″/μ′, which quantifies attenuation ability of a material. , Figure a shows that the ε′ value of RGO and NHGF decreases when the frequency increases because of the frequency-dependent dielectric dispersion effect of RGO, and the downward degree of RGO and S-NHGF is more apparent than that of L-NHGF . At low frequencies, the ε′ value of RGO and S-NHGF is much higher than L-NHGF, but they are very approximate at high frequencies.…”

Section: Resultsmentioning

confidence: 99%

Microporous Reduced Graphene Oxide Foam Containing Ni(OH)₂ Nanoparticles for Broadband Electromagnetic Wave Absorption

Guo

Qiu

2022

ACS Appl. Nano Mater.

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With the growing demand for simplifying fabrication process of advanced electromagnetic wave absorbers, Ni(OH)2 nanoparticles/reduced graphene oxide (RGO) composite foam (NHGF), a high-performance microwave absorber, has been proposed via a facile hydrothermal method. Besides lightweight characteristic, NHGF also possesses broadband microwave absorption capacity whose effective absorption band (EAB) can reach 7.65 GHz and the minimum reflection loss (RLmin) is up to −54.69 dB at a thickness of 3.5 mm. Moreover, its wave absorption capability can be adjusted through altering Ni(OH)2 content. Some heterogeneous interface effect caused by Ni(OH)2 nanoparticles can significantly enhance the interfacial polarization. Ni(OH)2 nanoparticles can contribute to the outstanding impedance matching performance as well as electromagnetic microwave absorption performance of NHGF. Therefore, NHGF, as a broadband microwave absorbing material, is expected to be applied in some advanced electromagnetic protection as well as practical electronic engineering fields.

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“…The 6.5 mm‐thick ferrite/Ti 3 C 2 T x composite loaded with 5 wt% Ti 3 C 2 T x MXenes had a minimum RL of −42.5 dB at 13.5 GHz and an effective absorption bandwidth of 3 GHz (12–15 GHz) at the K band. Qiu et al [ 82 ] prepared NiFe 2 O 4 /MXene nanocomposites with different MXenes (Ti 3 C 2 ) by one‐step hydrothermal method. Since the addition of MXene nanosheets improved the anisotropy and coercivity of the materials and reduced the saturation magnetization, the NiFe 2 O 4 /MXene nanocomposites had excellent electromagnetic and microwave absorption properties.…”

Section: Binary Ferrite Composite Absorbing Materialsmentioning

confidence: 99%

Recent Research Progress of Ferrite Multielement Microwave Absorbing Composites

et al. 2022

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With the extensive application of electrical and wireless equipment, several electromagnetic pollution‐related issues have emerged. Therefore, the manufacturing of absorbing materials has become important to electromagnetic pollution. Ferrite is a common absorbing material; its single absorbing mechanism and narrow absorbing frequency band resist the wider usage as an ideal absorbing material. Adding different materials to ferrite has become a popular way to enhance its microwave absorption properties. Herein, the recent research on ferrite multicomponent microwave absorbing composites is summarized. For ferrite binary composite absorbing materials, the research progress of ferrite and graphene, carbon nanotubes, carbon fiber and other carbon materials, ferrite and polypyrrole, polyaniline and other polymer materials, and ferrite and MXene composites is introduced. In addition, the advancement of ferrite ternary absorbent materials research is also discussed. The growing development trend of ferrite composite absorbing materials is finally summed up, and the prospects of fabricating the “thin, light, wide, and strong” ferrite absorbing materials are put forward.

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Synthesis, characterization and microwave absorption of MXene/NiFe2O4 composites

Cited by 45 publications

References 42 publications

General Synthesis of Two-Dimensional Porous Metal Oxides/Hydroxides for Microwave Absorbing Applications

General Synthesis of Two-Dimensional Porous Metal Oxides/Hydroxides for Microwave Absorbing Applications

Microporous Reduced Graphene Oxide Foam Containing Ni(OH)₂ Nanoparticles for Broadband Electromagnetic Wave Absorption

Recent Research Progress of Ferrite Multielement Microwave Absorbing Composites

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Synthesis, characterization and microwave absorption of MXene/NiFe2O4 composites

Cited by 45 publications

References 42 publications

General Synthesis of Two-Dimensional Porous Metal Oxides/Hydroxides for Microwave Absorbing Applications

General Synthesis of Two-Dimensional Porous Metal Oxides/Hydroxides for Microwave Absorbing Applications

Microporous Reduced Graphene Oxide Foam Containing Ni(OH)2 Nanoparticles for Broadband Electromagnetic Wave Absorption

Recent Research Progress of Ferrite Multielement Microwave Absorbing Composites

Contact Info

Product

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Microporous Reduced Graphene Oxide Foam Containing Ni(OH)₂ Nanoparticles for Broadband Electromagnetic Wave Absorption