Multifunctional antimony tin oxide/reduced graphene oxide aerogels with wideband microwave absorption and low infrared emissivity

Li, Jinzhe; Xu, Zhengkang; Li, Tian; Zhi, Dandan; Chen, Yao; Lu, Quanhong; Wang, Jingjing; Liu, Qian; Meng, Fanbin

doi:10.1016/j.compositesb.2021.109565

Cited by 105 publications

(33 citation statements)

References 50 publications

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“…Moreover, within almost Exceptionally, M-CoO/Co@C⊂MX always gives ε p ″ higher than ε c ″ irrespective of the frequency, indicating that its polarization loss is predominant within the entire frequency range. Meanwhile, three noticeable Core−Core circles, each representing a corresponding Debye relaxation, 48 are observed in the ε′−ε″ curves for M-CoO/Co@C⊂MX, indicating the coexistence of dipolar and interfacial polarization (Figure S14b). Comparatively, annealed-MX only delivers a straight line in the entire frequency range (Figure S14d), indicating a negligible polarization loss.…”

Section: Resultsmentioning

confidence: 99%

Ti₃C₂T_X MXene Nanosheets Decorated with Magnetic Co Nanoparticles and CoO Nanosheets for Microwave Absorption

Zhang

et al. 2022

ACS Appl. Nano Mater.

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As a recently emerging 2D material, Ti3C2T X MXene, with some distinct characters, might bring opportunities for developing advanced microwave absorption materials (MAMs). Although the multilayered MXene with an accordion-like structure has been used as the building blocks to obtain composite MAMs, the exfoliated MXene (eMXene) nanosheets have rarely been explored. Herein, we construct a hierarchically structured MXene-based composite by simultaneously decorating magnetic nanosheets/particles onto eMXene sheets for an efficient microwave absorption. Systematic ex situ characterizations reveal that the eMXene sheets can act as a structure-directing agent and host to allow an interlaced growth of ultrathin CoO nanosheets and spherical Co@C nanoparticles onto their surfaces. Such structural design impedes the agglomeration of eMXene sheets and magnetic nanounits while guaranteeing the adequate exposure of polar functional groups on MXene surfaces. Meanwhile, the introduction of dual magnetic phases enables an additional magnetic loss capability and also builds massive void spaces and rich heterointerfaces between various nanounits for a significantly enhanced dielectric polarization loss, resulting in a superior impedance matching and attenuation capability. Accordingly, the optimal composite exhibits a minimum reflection loss of −73.4 dB at a thin thickness of 2.1 mm and an effective absorption bandwidth up to 5.6 GHz (12.4–18.0 GHz) at a thin thickness of 1.8 mm. This study might stimulate the further development of exfoliated MXene-based composite microwave absorbers with hierarchical structures.

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Section: Resultsmentioning

confidence: 99%

Ti₃C₂T_X MXene Nanosheets Decorated with Magnetic Co Nanoparticles and CoO Nanosheets for Microwave Absorption

Zhang

et al. 2022

ACS Appl. Nano Mater.

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“…In order to ensure the thinness, wide absorption bandwidth, and lightweight of EMA materials, researchers have been working hard to break through many obstacles. [ 87–90 ] Li et al combined the wet chemical method, self‐assembly method, and sacrificial template method to construct a unique reduced graphene oxide (RGO)/Ti 3 C 2 T x syntactic foam and realize the regulation of EMA properties. [ 89 ] Briefly, as shown in Figure a, polymethyl methacrylate (PMMA) spheres and Ti 3 C 2 T x flakes were dispersed in water, mixed, and centrifuged to form Ti 3 C 2 T x /PMMA spheres by self‐assembly through hydrogen bonding and van der Waals forces.…”

Section: Construction Routes Of Mxenes and Mxene‐based Compositesmentioning

confidence: 99%

2D MXene Nanomaterials: Synthesis, Mechanism, and Multifunctional Applications in Microwave Absorption

et al. 2022

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“…Currently, foams and aerogels with porous network structure, high porosity, high specific surface area, such as melamine hybrid foam [ 26 ], chitosan-derived carbon aerogels [ 27 ], porous carbon@CuS [ 11 ], antimony tin oxide/rGO aerogels [ 28 ], cobalt ferrite/carbon nanotubes/waterborne polyurethane hybrid aerogels [ 29 ], Fe/Fe 2 O 3 @porous carbon composites [ 30 ], cellulose-chitosan framework/polyaniline hybrid aerogel [ 31 ], rGO/MWCNT-melamine composite [ 32 ], organic-inorganic hybrid aerogel [ 33 ], and rGO/Fe 3 O 4 [ 34 ], are commonly applied as radar-IR stealth materials. Although the reported carbon-based radar-IR compatible stealth materials can achieve MA performance and thermal/IR stealth, it is difficult to gain a wide EAB (> 8 GHz) and low IR emissivity (< 6.5) with a low filler content (< 5 wt%).…”

Section: Introductionmentioning

confidence: 99%

Ultrabroad Microwave Absorption Ability and Infrared Stealth Property of Nano-Micro CuS@rGO Lightweight Aerogels

et al. 2022

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Developing ultrabroad radar-infrared compatible stealth materials has turned into a research hotspot, which is still a problem to be solved. Herein, the copper sulfide wrapped by reduced graphene oxide to obtain three-dimensional (3D) porous network composite aerogels (CuS@rGO) were synthesized via thermal reduction ways (hydrothermal, ascorbic acid reduction) and freeze-drying strategy. It was discovered that the phase components (rGO and CuS phases) and micro/nano structure (microporous and nanosheet) were well-modified by modulating the additive amounts of CuS and changing the reduction ways, which resulted in the variation of the pore structure, defects, complex permittivity, microwave absorption, radar cross section (RCS) reduction value and infrared (IR) emissivity. Notably, the obtained CuS@rGO aerogels with a single dielectric loss type can achieve an ultrabroad bandwidth of 8.44 GHz at 2.8 mm with the low filler content of 6 wt% by a hydrothermal method. Besides, the composite aerogel via the ascorbic acid reduction realizes the minimum reflection loss (RLmin) of − 60.3 dB with the lower filler content of 2 wt%. The RCS reduction value can reach 53.3 dB m2, which effectively reduces the probability of the target being detected by the radar detector. Furthermore, the laminated porous architecture and multicomponent endowed composite aerogels with thermal insulation and IR stealth versatility. Thus, this work offers a facile method to design and develop porous rGO-based composite aerogel absorbers with radar-IR compatible stealth.

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Multifunctional antimony tin oxide/reduced graphene oxide aerogels with wideband microwave absorption and low infrared emissivity

Cited by 105 publications

References 50 publications

Ti₃C₂T_X MXene Nanosheets Decorated with Magnetic Co Nanoparticles and CoO Nanosheets for Microwave Absorption

Ti₃C₂T_X MXene Nanosheets Decorated with Magnetic Co Nanoparticles and CoO Nanosheets for Microwave Absorption

2D MXene Nanomaterials: Synthesis, Mechanism, and Multifunctional Applications in Microwave Absorption

Ultrabroad Microwave Absorption Ability and Infrared Stealth Property of Nano-Micro CuS@rGO Lightweight Aerogels

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Multifunctional antimony tin oxide/reduced graphene oxide aerogels with wideband microwave absorption and low infrared emissivity

Cited by 105 publications

References 50 publications

Ti3C2TX MXene Nanosheets Decorated with Magnetic Co Nanoparticles and CoO Nanosheets for Microwave Absorption

Ti3C2TX MXene Nanosheets Decorated with Magnetic Co Nanoparticles and CoO Nanosheets for Microwave Absorption

2D MXene Nanomaterials: Synthesis, Mechanism, and Multifunctional Applications in Microwave Absorption

Ultrabroad Microwave Absorption Ability and Infrared Stealth Property of Nano-Micro CuS@rGO Lightweight Aerogels

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Product

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Ti₃C₂T_X MXene Nanosheets Decorated with Magnetic Co Nanoparticles and CoO Nanosheets for Microwave Absorption

Ti₃C₂T_X MXene Nanosheets Decorated with Magnetic Co Nanoparticles and CoO Nanosheets for Microwave Absorption