Carbon-based EM functional materials and multi-band microwave devices: Current progress and perspectives

Huo, Kaili; Yang, Shuhui; Zong, Jin-Ho; Chu, Jiaru; Wang, Yidan; Cao, Mao‐Sheng

doi:10.1016/j.carbon.2023.118193

Cited by 48 publications

(10 citation statements)

References 111 publications

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“…This can be simplified as the Z value, which represents the impedance matching between the microwave and free space. Hence, the Z value can be used as another critical parameter to evaluate the absorption performance of absorbers (4) In order to improve the absorption performance of the absorbers, it is important to achieve good impedance matching between the microwave and the absorber. A Z value closer to 1 indicates a better impedance match, and more microwaves can be absorbed per unit.…”

Section: Resultsmentioning

confidence: 99%

“…What is more, with the antagonized development of radar detection technology and radar stealth technology, the radar working frequency band is gradually concentrated in the low-frequency region. It is imminent to research the radar stealth technology in low frequencies. − Consequently, the development of microwave absorption (MA) materials in the low-frequency band has assumed critical importance. Carbon-based materials are highly sought after as microwave absorbers due to their excellent dielectric loss ability, lightweight, and easy accessibility, which more than meet the requirements of modern MA materials.…”

Section: Introductionmentioning

confidence: 99%

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Toward Enhanced S-Band Absorption Ability via Ni Element Modification of Peach Pit Carbon

Yang,

Xiong,

Wang

et al. 2023

Ind. Eng. Chem. Res.

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The problem of microwave pollution becomes more serious with the widespread popularity of electronic equipment; the development of microwave absorption materials has assumed critical importance. However, most reported carbon-based microwave absorption materials have no obvious absorption performance in 2–4 GHz (S band), which seriously limits their application. In this work, Ni(OH)2-coated peach pit carbon [Ni(OH)2/C1] is prepared by simple precipitation to achieve a minimum reflection loss (RL) value of −46.2 dB (5.6 mm, at 2.9 GHz) and absorption band cover 2.54–4 GHz in the thickness range of 3.7–6 mm in the S-band. In addition, Ni(OH)2/C1 achieved an RLmin value of −58.05 dB (2.7 mm, at 7.68 GHz) and maximum effective absorption bandwidth (EAB) of 3.95 GHz in the range 2–18 GHz. Our work provides new insights into the microwave absorption in low frequencies and expands the application range and scenarios of carbon-based materials.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Toward Enhanced S-Band Absorption Ability via Ni Element Modification of Peach Pit Carbon

Yang,

Xiong,

Wang

et al. 2023

Ind. Eng. Chem. Res.

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“…The wide application of electromagnetic waves (EW) in science and technology unavoidably leads to electromagnetic wave pollution. Unnumbered works have been made to settle this problem with remarkable feats. − However, the performance of existing materials at low frequencies is not ideal, which remains to be solved.…”

Section: Introductionmentioning

confidence: 99%

Self-Assembled Ni_0.85Se/NiSe@MoSe₂ Network with Tubular and Core–Sheath Structures toward Adjustable Electromagnetic Wave Absorption Properties

Zan,

Li,

Dong

et al. 2023

Ind. Eng. Chem. Res.

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The combination of electric and magnetic components to fabricate electromagnetic wave absorption (EWA) materials, which can simultaneously optimize impedance matching and enhance attenuation ability, has been proven to be an effective way to achieve superior EWA properties. In this work, Ni nanowires with a large length-to-diameter ratio and a wrinkled surface are fabricated through an ordinary solvothermal reaction. Afterward, via a one-pot hydrothermal reaction, Ni reacts with Se and Mo sources and is transformed into Ni 0.85 Se/NiSe, and the sheath of MoSe 2 nanosheets is depicted. Moreover, when the Ni cations migrate to the surface and react with Se, free space is formed inside the nanowires, which leads to hollow and core−sheath structures. Notably, because of the agglomeration of MoSe 2 , the synthesized Ni 0.85 Se/NiSe@MoSe 2 tubular nanowires selfassembled into a three-dimensional network. The complex can cause dielectric and magnetic loss simultaneously, achieving effective EWA in the entire X-band at 3.1 mm and the full Ku-band at 2.3 mm, respectively. By alternating the thickness of samples, effective EWA can also be realized in most parts of the C-and S-bands. This work may give enlightenment for the facile synthesis and utility of Ni nanowires and excellent EWA materials with specific structures, diversified loss approaches, and adjustable EWA properties.

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“…Presently, the perpetual demand for practical applications of EMWs absorbing materials is moving ahead the targets of lightweight and broadband . Therefore, as the least dense solid, porous aerogels assembled with nanomaterials attract wide attention. , Accordantly, carbon-based materials show unique advantages due to their outstanding dielectric properties, lightweight, high flexibility, and good structural stability, , which are capable of not only simply being applied to the structural engineering but also reducing the bulk density. Ulteriorly, it is worthwhile noting that different dimensional carbon materials have diverse properties.…”

Section: Introductionmentioning

confidence: 99%

Porous Carbonaceous Aerogels Composed of Multiscale Carbon-Based Units for High-Performance Microwave Absorption

Lin,

Hao,

Huang

et al. 2023

ACS Appl. Mater. Interfaces

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Structural engineering is definitely a promising and effective approach to develop excellent microwave absorbing materials with quantities of advantages. Especially, when carbon materials act as the constituents, the fabricated absorbers are available to gain more prominent absorption performance. However, extra high conductivities and the widespread aggregations and stacking of low-dimensional carbon materials always detrimentally affect the impedance matching and weaken the attenuation capacity, inevitably confining their further absorption applications. Herein, by introducing the amorphous chiral carbon nanocoils to overcome the challenges and achieve the strategies of structure optimization and multicomponent recombination, the reduced graphene oxide/carbon nanocoil/carbon nanotube aerogels were successfully synthesized by a successive hydrothermal method and freeze-drying strategy. The as-obtained aerogels possess a porous architecture that contribute to the extraordinary impedance matching and multiple reflections, which integrate the multifarious dielectric loss mechanisms of diverse carbon materials simultaneously. Benefiting from the tricomponent synergistic effect, the ultralight aerogels reach an outstanding microwave absorption property with an extremely low filler content of only 6 wt %. This work provides a helpful approach to design hierarchical absorbers consisted by multidimensional carbon materials for fantastic microwave absorption.

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Carbon-based EM functional materials and multi-band microwave devices: Current progress and perspectives

Cited by 48 publications

References 111 publications

Toward Enhanced S-Band Absorption Ability via Ni Element Modification of Peach Pit Carbon

Toward Enhanced S-Band Absorption Ability via Ni Element Modification of Peach Pit Carbon

Self-Assembled Ni_0.85Se/NiSe@MoSe₂ Network with Tubular and Core–Sheath Structures toward Adjustable Electromagnetic Wave Absorption Properties

Porous Carbonaceous Aerogels Composed of Multiscale Carbon-Based Units for High-Performance Microwave Absorption

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Carbon-based EM functional materials and multi-band microwave devices: Current progress and perspectives

Cited by 48 publications

References 111 publications

Toward Enhanced S-Band Absorption Ability via Ni Element Modification of Peach Pit Carbon

Toward Enhanced S-Band Absorption Ability via Ni Element Modification of Peach Pit Carbon

Self-Assembled Ni0.85Se/NiSe@MoSe2 Network with Tubular and Core–Sheath Structures toward Adjustable Electromagnetic Wave Absorption Properties

Porous Carbonaceous Aerogels Composed of Multiscale Carbon-Based Units for High-Performance Microwave Absorption

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Product

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About

Self-Assembled Ni_0.85Se/NiSe@MoSe₂ Network with Tubular and Core–Sheath Structures toward Adjustable Electromagnetic Wave Absorption Properties