The effect of honeycomb pore size on the electromagnetic interference shielding performance of multifunctional 3D honeycomb-like Ag/Ti3C2T  hybrid structures

Wang, Xiaohan; Bao, Shen; Hu, Feiyue; Shang, Siyang; Chen, Yongqiang; Zhao, Na; Zhang, Rui; Zhao, Biao; Fan, Bingbing

doi:10.1016/j.ceramint.2022.02.244

Cited by 12 publications

(5 citation statements)

References 33 publications

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“…The fabrication process of the 3D honeycomb-like Ag@N-Ti 3 C 2 T x foam is shown in Figure 1 . Based on our previous work [ 18 , 19 ], the prepared honeycomb-like Ag@Ti 3 C 2 T x composites were further nitrogen doped in an oil bath with hydrazine hydrate as a nitrogen source. During this process, hydrazine hydrate decomposed into NH 3 that would replace the functional groups on the surface of Ag@Ti 3 C 2 T x , and the Ag@N-Ti 3 C 2 T x foam was successfully prepared.…”

Section: Resultsmentioning

confidence: 99%

“…Subsequently, the mixture was cooled at room temperature, washed and filtered through a microporous monolayer membrane (Celgard 3501, 11 Technology Co. Ltd. Changchun). Finally, to remove the PMMA template, the composite membrane was annealed at 400 °C for 0.5 h in an argon atmosphere, and the self-supporting honeycomb-structured Ag@Ti 3 C 2 T x composites were obtained [ 19 ].…”

Section: Methodsmentioning

confidence: 99%

“…Inspired by these studies and based on our previous work [ 18 , 19 ], we employed a facile and stable route to fabricate a honeycomb-like N-doped Ag@Ti 3 C 2 T x foam. While not destroying its microscopic morphology, high electrical conductivity can also be obtained and, at the same time, it can meet the characteristic of light weight.…”

Section: Introductionmentioning

confidence: 99%

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N-Doped Honeycomb-like Ag@N-Ti3C2Tx Foam for Electromagnetic Interference Shielding

Wang

Zhang

et al. 2022

Nanomaterials

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To solve the pollution problem of electromagnetic waves, new electromagnetic shielding materials should meet the requirements of being lightweight with high electrical conductivity. In this work, the combination of silver (Ag) nanoparticles and nitrogen doping (N-doping) was expected to tune the electromagnetic and physical properties of Ti3C2Tx MXene, and the Ag@N-Ti3C2Tx composites were fabricated through the hydrothermal reactions. The nitrogen doped (N-doped) Ag@Ti3C2Tx composites showed a hollow structure with a pore size of 5 μm. The influence of N-doped degrees on the electromagnetic interference (EMI) shielding performance was investigated over 8–18 GHz. Therefore, the controlled N-doping composites exhibited reflection-based EMI shielding performance due to the electrical conductivity and the special three-dimensional (3D) honeycomb-like structure. The achieved average EMI shielding values were 52.38 dB at the X-band and 72.72 dB at the Ku-band. Overall, the Ag@N-Ti3C2Tx foam, due to its special 3D honeycomb-like structure, not only meets the characteristics of light weight, but also exhibits ultra-high-efficiency EMI shielding performance, revealing great prospects in the application of electromagnetic wave shielding field.

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Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

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N-Doped Honeycomb-like Ag@N-Ti3C2Tx Foam for Electromagnetic Interference Shielding

Wang

Zhang

et al. 2022

Nanomaterials

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“…The design of porous structures plays a crucial role in improving EMI SE [81][82][83][84][85]. Compared with the ordered pore design of hydrogels, there has been a surge in research on aerogels with aligned pore structures [36,86,87].…”

Section: Porous Architectures With Biomimetic Ordered Pores For High-...mentioning

confidence: 99%

Hydrogel-based composites beyond the porous architectures for electromagnetic interference shielding

et al. 2022

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With the rapid development of the electronic industry and wireless communication technology, electromagnetic interference (EMI) or pollution has been increasingly serious. This not only severely endangers the normal operation of electronic equipment but also threatens human health. Therefore, it is urgent to develop high-performance EMI shielding materials. The advent of hydrogel-based materials has given EMI shields a novel option. Hydrogels combined with conductive functional materials have good mechanical flexibility, fatigue durability, and even high stretchability, which are beneficial for a wide range of applications, especially in EMI shielding and some flexible functional devices. Herein, the current progress of hydrogel-based EMI shields was reviewed, in the meanwhile, some novel studies about pore structure design that we believe will help advance the development of hydrogel-based EMI shielding materials were also included. In the outlook, we suggested some promising development directions for the hydrogel-based EMI shields, by which we hope to provide a reference for designing hydrogels with excellent EMI shielding performance and multifunctionalities.

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“…However, the high conductivity and self-stacking of Ti3C2TxMXene nanosheets result in impedance mismatch and thereby weakening the MA property [10][11][12]. In addition, the MA performance of MXene-based materials is further hampered by the high permittivity [13].…”

Section: Introductionmentioning

confidence: 99%

Construction of hydrangea-like core–shell SiO ₂@Ti ₃C ₂T _x@CoNi microspheres for tunable electromagnetic wave absorbers

Niu¹,

Jiang²,

Xia³

et al. 2023

Journal of Advanced Ceramics

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Ti3C2TxMXene shows great potentials in the application as microwave absorbers due to its high attenuation ability. However, excessively high permittivity and self-stacking are the main obstacles that constrain its wide range of applications. To tackle these 2 problems, herein, the microspheres of SiO2@Ti3C2Tx@CoNi with the hydrangea-like core-shell structure were designed and prepared by a combinatorial electrostatic assembly and hydrothermal reaction method. These microspheres are constructed by an outside layers of CoNi nanosheets and intermediate Ti3C2TxMXene nanosheets wraping on the core of modified SiO2, engendering both homogenous and heterogeneous interfaces. Such trilayer SiO2@Ti3C2Tx@CoNi microspheres are "magnetic micro size supercapacitors" that can not only induce dielectric loss and magnetic loss but also provide multilayer interfaces to enhance the interfacial polarization. The optimized impedance matching and core-shell structure could boost the reflection loss by electromagnetic synergy. The synthesized SiO2@Ti3C2Tx@CoNi microspheres demonstrate outstanding microwave absorption performance benefited from these advantages. The obtained reflection loss value was -63.95 dB at an ultra-thin thickness of 1.2 mm, corresponding to an effective absorption bandwidth of 4.56 GHz. This work demonstrates the trilayer core-shell structure designing strategy is highly efficient for tuning the MA performance of MXene-based microspheres.

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The effect of honeycomb pore size on the electromagnetic interference shielding performance of multifunctional 3D honeycomb-like Ag/Ti3C2T hybrid structures

Cited by 12 publications

References 33 publications

N-Doped Honeycomb-like Ag@N-Ti3C2Tx Foam for Electromagnetic Interference Shielding

N-Doped Honeycomb-like Ag@N-Ti3C2Tx Foam for Electromagnetic Interference Shielding

Hydrogel-based composites beyond the porous architectures for electromagnetic interference shielding

Construction of hydrangea-like core–shell SiO ₂@Ti ₃C ₂T _x@CoNi microspheres for tunable electromagnetic wave absorbers

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The effect of honeycomb pore size on the electromagnetic interference shielding performance of multifunctional 3D honeycomb-like Ag/Ti3C2T hybrid structures

Cited by 12 publications

References 33 publications

N-Doped Honeycomb-like Ag@N-Ti3C2Tx Foam for Electromagnetic Interference Shielding

N-Doped Honeycomb-like Ag@N-Ti3C2Tx Foam for Electromagnetic Interference Shielding

Hydrogel-based composites beyond the porous architectures for electromagnetic interference shielding

Construction of hydrangea-like core–shell SiO 2@Ti 3C 2T x @CoNi microspheres for tunable electromagnetic wave absorbers

Contact Info

Product

Resources

About

Construction of hydrangea-like core–shell SiO ₂@Ti ₃C ₂T _x@CoNi microspheres for tunable electromagnetic wave absorbers