Preparation and microwave absorption properties of microsheets VO2(M)

Chen, Yan; Ma, Siqi; Li, Xiang; Zhao, Xiuchen; Cheng, Xingwang; Liu, Jiping

doi:10.1016/j.jallcom.2019.03.338

Cited by 28 publications

(10 citation statements)

References 42 publications

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“…One promising approach is the use of high-performance microwave absorbing materials (MAMs). Graphene, a relatively new carbon-based material, has excellent properties such as high electron mobility, high permittivity and a high specific surface area, which can dampen electromagnetic waves effectively using polarization relaxation [4,5,6,7]. However, pure graphene can reflect most of the electromagnetic waves, resulting in being unsuitable for MAM due to their poor impedance matching.…”

Section: Introductionmentioning

confidence: 99%

A New Broadband and Strong Absorption Performance FeCO3/RGO Microwave Absorption Nanocomposites

Huang¹,

Wei²,

Wang³

et al. 2019

Materials

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A novel composite of FeCO3 nanoparticles, which are wrapped with reduced graphene oxide (RGO), is fabricated using a facile one-spot solvothermal method. The composite consists of a substrate of RGO and FeCO3 nanoparticles that are embedded in the RGO layers. The experimental results for the FeCO3/RGO composite reveal a minimum refection loss (−44.5 dB) at 11.9 GHz when the thickness reaches 2.4 mm. The effective bandwidth is 7.9 GHz between 10.1 and 18 GHz when the refection loss was below −10 dB. Compared to GO and RGO, this type of composite shows better microwave absorption thanks to improved impedance matching. Overall, this thin and lightweight FeCO3/RGO composite is a promising candidate for absorbers that require both strong and broad absorption.

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Section: Introductionmentioning

confidence: 99%

A New Broadband and Strong Absorption Performance FeCO3/RGO Microwave Absorption Nanocomposites

Huang¹,

Wei²,

Wang³

et al. 2019

Materials

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Section: Resultsmentioning

confidence: 94%

“…Among all the samples, PTVO-30, PAVO-30 and PPVO-5 are the samples with the best microwave absorption performances in their respective series, which are better than those of the previously reported materials of the same type (Table S1, ESI †). 11,13,[37][38][39][40][41][42][43] Notably, PTVO-30 has the strongest RL min and the widest EAB of all samples tested, with the EAB covering the entire Ku-band (i.e., 12-18 GHz). Interestingly, the absorption peaks of PTVO-30, PAVO-30 and PPVO-30 gradually shift toward lower frequencies with increasing thickness, which is attributed to resonant absorption due to quarter-wavelength attenuation (Fig.…”

Section: Rl Dbmentioning

confidence: 99%

“…12 Thus, pure vanadium oxides have poor EMW absorption properties. 13 Vanadium matrix composites solve the above problems and enrich the EMW absorption mechanism of vanadium oxides, which are considered an excellent EMW absorbing material. Zhou et al successfully synthesized chain spherical V 2 O 5 /C composites by the template method and vacuum-assisted immersion method, and because of the enhancement of conductive loss and interfacial polarization, the V 2 O 5 /C composite achieved a minimum reflection loss (RL min ) of −34.05 dB at 2.35 mm.…”

Section: Introductionmentioning

confidence: 99%

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Design of two-dimensional organic–inorganic heterostructures for high-performance electromagnetic wave absorption

Ye¹,

Wang²,

Cao³

et al. 2023

J. Mater. Chem. C

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“…Chen et al prepared microsheet structures of VO 2 (M) by hydrothermal and annealing methods. 66 By systematic characterization, the VO 2 (M) micro sheets showed a minimum RL value of −45.8 dB and an EAB value of 3.37 GHz at 1.9 mm. After careful analysis, the authors concluded that the surface defects and the unique two-dimensional geometry of the micro sheet VO 2 (M) induce extra polarization, thereby improving the microwave absorption performance of the sample.…”

Section: Dielectric Oxides and Compositesmentioning

confidence: 92%

Review of Dielectric Carbide, Oxide, and Sulfide Nanostructures for Electromagnetic Wave Absorption

Lu,

Zhang,

Liu

et al. 2023

ACS Appl. Nano Mater.

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Following the growth of infotech and electronic industries, electromagnetic-wave-absorbing materials play an essential role in the traction of the need for high-precision weaponry and intelligent electronic equipment. The exploitation of high-performance electromagnetic-wave-absorbing materials has emerged as a strategic challenge to be solved in the upgrading of military equipment and civil electromagnetic security. The more maturely studied absorbing materials (carbon, ferrite, etc.) have a single loss mechanism and poor resistance matching, which are already not enough to cover the basic needs. To explore absorbing materials that satisfy both impedance matching and attenuation balance, dielectric nanomaterials have come to the fore. They can realize light weight, thin layer, broad band, and multiband, which have great application prospects. In this review, we start with a summary of typical dielectric loss mechanisms (interfacial polarization, dipole polarization, and conduction loss). Next, diverse carbides, oxides, sulfides, and their composites with dielectric or magnetic materials are described, and the nanostructure advantages and wave-absorbing performance advantages are investigated. Then, the applications of wave-absorbing materials are depicted. Lastly, the challenges faced by dielectric-type materials are outlined, and future development trends are foreseen. Overall, this review offers an overview of the advances in the study of dielectric nanoabsorbing materials.

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Preparation and microwave absorption properties of microsheets VO2(M)

Cited by 28 publications

References 42 publications

A New Broadband and Strong Absorption Performance FeCO3/RGO Microwave Absorption Nanocomposites

A New Broadband and Strong Absorption Performance FeCO3/RGO Microwave Absorption Nanocomposites

Design of two-dimensional organic–inorganic heterostructures for high-performance electromagnetic wave absorption

Review of Dielectric Carbide, Oxide, and Sulfide Nanostructures for Electromagnetic Wave Absorption

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